US Patent Class 73-- MEASURING AND TESTING

US Patent Class 73
MEASURING AND TESTING

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Current as of: June, 1999
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	DF	CLASS NOTES
1.01	DF	INSTRUMENT PROVING OR CALIBRATING
1.02	DF	.~ Gas or liquid analyzer
1.03	DF	.~.~ Reference standard
1.04	DF	.~.~.~ Permeable outlet or flawed element
1.05	DF	.~.~.~ Piston, sprayer, nozzle, or orifice
1.06	DF	.~.~ Gas
1.07	DF	.~.~.~ Span or zero
1.08	DF	.~ Dynamometer
1.09	DF	.~.~ Torque
1.11	DF	.~.~.~ Electrical
1.12	DF	.~.~.~ Wrench
1.13	DF	.~.~ Weight
1.14	DF	.~.~ Rotor unbalance or a roller having a smooth surface
1.15	DF	.~.~ Load cell (e.g., strain gauge or piezoelectric sensor)
1.16	DF	.~ Volume of flow, speed of flow, volume rate of flow, or mass rate of flow
1.17	DF	.~.~ Plug with leak detector
1.18	DF	.~.~ Sphere
1.19	DF	.~.~ Piston
1.21	DF	.~.~.~ With plural pistons
1.22	DF	.~.~.~ With magnetic or optical sensor
1.23	DF	.~.~.~ With position sensing switch
1.24	DF	.~.~ Tracer
1.25	DF	.~.~ Orifice or restriction
1.26	DF	.~.~.~ Nozzle or venturi
1.27	DF	.~.~ Turbine, geared meter, pulse activated, or counter
1.28	DF	.~.~.~ Turbine or geared meter
1.29	DF	.~.~ Anemometer or pitot tube
1.31	DF	.~.~ With liquid level monitor or timer
1.32	DF	.~.~.~ Prover bell
1.33	DF	.~.~ With floating element or weighing
1.34	DF	.~.~ With signal processing, span or set point adjustment (e.g., zero correction)
1.35	DF	.~.~ With pressure measurement or plural flowmeters
1.36	DF	.~.~ Metering dispenser
1.37	DF	.~ Speed, velocity, or acceleration
1.38	DF	.~.~ Acceleration utilizing an inertial element
1.39	DF	.~.~.~ Involving pendulum or impact
1.41	DF	.~.~ Optical or magnetic sensing
1.42	DF	.~ Timing apparatus (e.g., fuse, camera, or shutter)
1.43	DF	.~.~ Chronometer (e.g., clock, watch, or watch unbalance)
1.44	DF	.~.~.~ Using antenna or radio frequency (RF)
1.45	DF	.~.~.~ Using optical sensor or element
1.46	DF	.~.~.~.~ With sound sensor
1.47	DF	.~.~.~.~ Resilient element
1.48	DF	.~.~.~ Using sound sensor or piezoelectric vibration sensor
1.49	DF	.~.~.~.~ Plural watches or plural sensors
1.51	DF	.~.~.~.~ Resilient element
1.52	DF	.~.~.~ Plural watches
1.53	DF	.~.~.~ With resilient element
1.54	DF	.~.~.~.~ Coil spring
1.55	DF	.~.~.~.~.~ Plural coil springs
1.56	DF	.~.~ Optical instrument (e.g., camera shutter) or optical sensor
1.57	DF	.~ Fluid pressure
1.58	DF	.~.~ Vacuum
1.59	DF	.~.~ With signal correction or processing
1.61	DF	.~.~.~ Span
1.62	DF	.~.~.~ Zero
1.63	DF	.~.~.~ With reference source or attachment therefor
1.64	DF	.~.~.~.~ Varying
1.65	DF	.~.~ Dead weight type
1.66	DF	.~.~ Varying
1.67	DF	.~.~.~ Using or containing liquid
1.68	DF	.~.~ With piston and cylinder
1.69	DF	.~.~ Using or containing liquid
1.71	DF	.~.~ Pressure activated device
1.72	DF	.~.~.~ Valve
1.73	DF	.~ Liquid level or volume measuring apparatus
1.74	DF	.~.~ Volumetric dispenser (e.g., pipette)
1.75	DF	.~ Angle, direction, or inclination
1.76	DF	.~.~ Compass
1.77	DF	.~.~ Gyroscope
1.78	DF	.~.~ Aircraft, inertial navigation, or attitude
1.79	DF	.~ Displacement, motion, distance, or position
1.81	DF	.~.~ Length, width, or height
1.82	DF	.~ Apparatus for measuring by use of vibration or apparatus for measuring vibration (e.g., acoustic or ultrasonic)
1.83	DF	.~.~ Liquid
1.84	DF	.~.~ Rotary or rotor unbalance
1.85	DF	.~.~ Seismic (e.g., geophone) or with optical sensor
1.86	DF	.~.~ Reference standard detail
1.87	DF	.~ Centrifuge
1.88	DF	.~ Span or set point adjustment (e.g., zero correction)
1.89	DF	.~ Roughness or hardness
7	DF	BY ABRASION, MILLING, RUBBING, OR SCUFFING
8	DF	.~ Wheel tread, tire, track, or roadway
9	DF	FRICTIONAL RESISTANCE, COEFFICIENT OR CHARACTERISTICS
10	DF	.~ Lubricant testing
11.01	DF	TESTING IMPACT DELIVERING DEVICE (E.G., A HAMMER)
11.02	DF	.~ Shot peener
11.03	DF	.~ Pile driving hammer
11.04	DF	TESTING OF SHOCK ABSORBING DEVICE (E.G., AUTOMOBILE SHOCK ABSORBER, GUN RECOIL APPARATUS, ETC.)
11.05	DF	.~ Torsional vibration damper
11.06	DF	.~ Railway draft gear
11.07	DF	.~ In situ vehicle suspension
11.08	DF	.~.~ By applying reciprocating or oscillating motion
11.09	DF	.~ By applying reciprocating or oscillating motion
12.01	DF	TESTING BY IMPACT OR SHOCK
12.02	DF	.~ Resilient ball (e.g., golf ball, baseball, etc.)
12.03	DF	.~ Typewriting ribbon or carbon paper
12.04	DF	.~ Accelerated or decelerated specimen (e.g., propelled or dropped specimen support carriage)
12.05	DF	.~.~ Particle or projectile specimen
12.06	DF	.~.~ Dropped
12.07	DF	.~.~ By hydraulic or pneumatic forces
12.08	DF	.~ Specimen directly subjected to a fluid pressure pulse or wave
12.09	DF	.~ Specimen impactor detail
12.11	DF	.~.~ Particle or projectile
12.12	DF	.~.~ Reciprocating or oscillating
12.13	DF	.~.~ Dropped
12.14	DF	.~.~.~ Pivoted
19.01	DF	GAS CONTENT OF A LIQUID OR A SOLID
19.02	DF	.~ By gas chromatography
19.03	DF	.~ By vibration
19.04	DF	.~ By rate of flow of the gas
19.05	DF	.~ By pressure of the gas
19.06	DF	.~.~ Of a beverage
19.07	DF	.~ Of metal
19.08	DF	.~ Of concrete, mortar, or plastic while in a fluent state
19.09	DF	.~ Of mud
19.1	DF	.~ Of a liquid
19.11	DF	.~.~ Lubricant
19.12	DF	.~ Particular separator
23.2	DF	GAS ANALYSIS
23.21	DF	.~ With compensation detail (for error or drift correction, etc.)
23.22	DF	.~.~ For gas chromatography
23.23	DF	.~.~.~ Baseline drift correction circuitry
23.24	DF	.~.~.~ Rate of flow
23.25	DF	.~.~.~ Temperature
23.26	DF	.~.~.~.~ Gradient
23.27	DF	.~.~.~ Pressure
23.28	DF	.~.~ For density or specific gravity
23.29	DF	.~.~.~ Pressure
23.3	DF	.~ Breath analysis
23.31	DF	.~ Gas of combustion
23.32	DF	.~.~ Air-fuel ratio
23.33	DF	.~.~.~ Solid content
23.34	DF	.~ Odor
23.35	DF	.~ Gas chromatography
23.36	DF	.~.~ With electrical computer or data processor control
23.37	DF	.~.~ With spectrometer
23.38	DF	.~.~ Petrochemical
23.39	DF	.~.~ Column detail
23.4	DF	.~.~ Detector detail
23.41	DF	.~.~ Including sample preparation or sampling
23.42	DF	.~.~ Detail of gas handling means
24.01	DF	.~ By vibration
24.02	DF	.~.~ Produced by radiant energy
24.03	DF	.~.~ Solid content of gas
24.04	DF	.~.~ Moisture content or vapor pressure of gas
24.05	DF	.~.~ Density or specific gravity of gas
24.06	DF	.~.~ Detector detail
25.01	DF	.~ By thermal property
25.02	DF	.~.~ With magnetic property (e.g., paramagnetic gas)
25.03	DF	.~.~ Thermoconductivity
25.04	DF	.~.~ Moisture content or vapor pressure
25.05	DF	.~.~ Detector detail
28.01	DF	.~ Solid content of gas
28.02	DF	.~.~ Particle charging
28.03	DF	.~.~ Pressure
28.04	DF	.~.~ Separator detail
28.05	DF	.~.~.~ Impactor
28.06	DF	.~.~.~.~ Fractionalizing
29.01	DF	.~ Moisture content or vapor pressure
29.02	DF	.~.~ Hygrometer
335.01	DF	.~.~.~ With optical element
335.02	DF	.~.~.~ With electric circuitry or electric circuit component detail
335.03	DF	.~.~.~.~ Impedance
335.04	DF	.~.~.~.~.~ Capacitance
335.05	DF	.~.~.~.~.~ Resistance or conductivity
335.06	DF	.~.~.~ Wet and dry responsive elements
335.07	DF	.~.~.~.~ With direct readout or calculator detail
335.08	DF	.~.~.~.~ Wet bulb detail
335.09	DF	.~.~.~.~.~ Relative air motion creating means (e.g., sling psychrometer)
335.11	DF	.~.~.~ Expanding-sorption element
335.12	DF	.~.~.~.~ Coiled or twisted
335.13	DF	.~.~.~.~ Arcuate or elongated
335.14	DF	.~.~.~.~ Tensioned
29.03	DF	.~.~ Pressure
29.04	DF	.~.~ With visual indication
29.05	DF	.~.~ Detector detail
30.01	DF	.~ Density or specific gravity
30.02	DF	.~.~ By pressure measurement
30.03	DF	.~.~ By rate of flow
30.04	DF	.~.~ Detector detail
31.01	DF	.~ Ambient air
31.02	DF	.~.~ Impurity
31.03	DF	.~ Impurity
31.04	DF	.~ Pressure
31.05	DF	.~ Detector detail
31.06	DF	.~.~ Semiconductor
31.07	DF	.~ Particular separator
32 R	DF	SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID
433	DF	.~ With weighing feature
434	DF	.~.~ Continuous test fluid supply
435	DF	.~.~ Plural supports for specimen
436	DF	.~.~.~ Vertically, commonly suspended
437	DF	.~.~ Immersion
438	DF	.~ Hydrostatic pressure type
439	DF	.~.~ Bubble tube
440	DF	.~ Multiple floats of graduated density
441	DF	.~ Portable hand manipulable syringe type
442	DF	.~.~ With thermometer
443	DF	.~.~.~ With calculator
444	DF	.~ Freely vertical reciprocable float with carried indicium
445	DF	.~.~ Continuous test fluid supply
446	DF	.~.~ With section means
447	DF	.~.~ With liquid level responsive gauge or compensator
448	DF	.~.~ Float structure
449	DF	.~.~.~ With carried thermometer or thermal compensator
450	DF	.~.~.~ Specimen carrying
451	DF	.~ Float operated indicator
452	DF	.~.~ Continuous test fluid supply
453	DF	.~.~ Electrical indication
454	DF	.~.~ Pivoted float
32 A	DF	.~ Involving vibration of substance or the measuring apparatus
35.01	DF	ENGINE DETONATION (E.G., KNOCK)
35.02	DF	.~ Fuel rating (e.g., octane rating)
35.03	DF	.~ Combustion signal compared to reference signal varied by a condition of the engine
35.04	DF	.~.~ Including calculation means
35.05	DF	.~.~ Automatic gain control or feedback control
35.06	DF	.~ Combustion signal compared to a fixed reference signal or utilizing a threshold value
35.07	DF	.~ Specific type of detonation sensor
35.08	DF	.~.~ Ionization
35.09	DF	.~.~ Vibration
35.11	DF	.~.~.~ Piezoelectric
35.12	DF	.~.~ Pressure
35.13	DF	.~.~.~ Piezoelectric
35.14	DF	EXPLOSIVE
35.15	DF	.~ By time measurement (e.g., burning rate, detonation velocity)
35.16	DF	.~ Electric sensor
35.17	DF	.~ Safety feature or containment structure
36	DF	ILLUMINATING FLUID
37	DF	WITH FLUID PRESSURE
37.5	DF	.~ Dimension, shape, or size
37.6	DF	.~.~ Moving specimen
37.7	DF	.~.~.~ Sheet or filament
37.8	DF	.~.~ Plural tests
37.9	DF	.~.~ Internal gauging
38	DF	.~ Porosity or permeability
39	DF	.~ Fluid pressure brake system or unit
40	DF	.~ Leakage
40.5 R	DF	.~.~ Fluid handling conduit in situ
40.5 A	DF	.~.~.~ Using acoustic detectors
40.7	DF	.~.~ By probe gas, vapor, or powder
41	DF	.~.~ Conveyor feed
41.2	DF	.~.~.~ With immersion
41.3	DF	.~.~.~.~ Defective article discard
41.4	DF	.~.~.~.~.~ Automatic
45	DF	.~.~.~ With defective article discard
45.1	DF	.~.~.~.~ Automatic
45.2	DF	.~.~.~.~.~ Electrically controlled
45.3	DF	.~.~.~.~.~ Vacuum support failure
45.4	DF	.~.~.~.~.~ Sealed receptacle
45.5	DF	.~.~ With immersion
45.6	DF	.~.~.~ Pneumatic tire
45.7	DF	.~.~.~.~ Mesh envelope
45.8	DF	.~.~.~ Radiator
46	DF	.~.~ Between fitted parts (e.g., joints)
47	DF	.~.~.~ Piston, piston ring, or engine valve
48	DF	.~.~.~ Tire valve
49	DF	.~.~ Pneumatic tire
49.1	DF	.~.~ Pipe
49.2	DF	.~.~ Receptacle
49.3	DF	.~.~.~ Sealed
49.4	DF	.~ With ram pressure inducer
49.5	DF	.~ Pipe
49.6	DF	.~.~ With power-operated closure or seal
49.7	DF	.~ Motor part or auxiliary
49.8	DF	.~ Clamp, plug, or sealing feature
52	DF	TESTING SEALED RECEPTACLE
53.01	DF	LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID
53.02	DF	.~ Butter fat content
53.03	DF	.~ Paper or wood suspension (e.g., paper or wood pulp)
53.04	DF	.~.~ By measuring fluid flow characteristic (e.g., by volume or rate of flow or by change in fluid level)
53.05	DF	.~ Lubricant testing
53.06	DF	.~.~ By analyzing a characteristic of a measuring surface
53.07	DF	.~.~ By solid content
54.01	DF	.~ Viscosity
54.02	DF	.~.~ Combined with other measuring means
54.03	DF	.~.~ Of concrete (e.g., slump indicator)
54.04	DF	.~.~ Friction tube (e.g., capillary)
54.05	DF	.~.~.~ Plural tubes
54.06	DF	.~.~.~.~ By pressure measuring
54.07	DF	.~.~.~ By time interval of travel or flow rate measuring
54.08	DF	.~.~.~.~ Including a photocell
54.09	DF	.~.~.~ By pressure measuring
54.11	DF	.~.~ Orifice, nozzle, or extrusion means
54.12	DF	.~.~.~ Plural fluids (e.g., comparison)
54.13	DF	.~.~.~ By time interval of travel or flow rate measuring
54.14	DF	.~.~.~ By force, pressure, or displacement measuring
54.15	DF	.~.~ Gravity movement of an object in a liquid (e.g., a bubble)
54.16	DF	.~.~.~ With detail of temperature or pressure regulating or compensating means
54.17	DF	.~.~.~ Using a reference fluid
54.18	DF	.~.~.~ With means for restoring an object to its initial starting position (e.g., magnetic or fluid means)
54.19	DF	.~.~.~ Including detail of a timing detection circuit
54.21	DF	.~.~.~ Including an object concentricity guide means
54.22	DF	.~.~ Adhesion between wetted surfaces
54.23	DF	.~.~ Force reactance to member driven therein
54.24	DF	.~.~.~ By vibration
54.25	DF	.~.~.~.~ Dampening effect (e.g., frequency, amplitude, speed, or power measurement)
54.26	DF	.~.~.~.~.~ With detail of a drive means or a detecting means
54.27	DF	.~.~.~.~ With detail (e.g., circuitry) of a drive means or a detecting means
54.28	DF	.~.~.~ Rotationally driven member
54.29	DF	.~.~.~.~ Comparator
54.31	DF	.~.~.~.~ By measuring the driving force or the speed of the driven member
54.32	DF	.~.~.~.~ By measuring an opposed drag force
54.33	DF	.~.~.~.~.~ By measuring angular displacement
54.34	DF	.~.~.~.~.~ By measuring a counterbalance or restoring force
54.35	DF	.~.~.~.~ Including detail of a motor drive, a stator, or a housing structure of a motor
54.36	DF	.~.~.~ Penetrometer
54.37	DF	.~.~.~ By movement or displacement between shearing surfaces
54.38	DF	.~.~.~ Detector detail
54.39	DF	.~.~ Shearing torque between parallel surfaces
54.41	DF	.~.~ Vibration
54.42	DF	.~.~ Thermal
54.43	DF	.~.~ With detail of a pressure or a temperature regulating means
60.11	DF	.~ Cleaning or foaming ability
61.41	DF	.~ Content or effect of a constituent of a liquid mixture
61.42	DF	.~.~ Metallic particle constituent
61.43	DF	.~.~ Liquid constituent of a liquid mixture
61.44	DF	.~.~.~ Plural liquid constituent (e.g., multiphase liquid)
61.45	DF	.~.~.~.~ By vibration
61.46	DF	.~.~.~ By thermal measurement
61.47	DF	.~.~.~ By pressure measurement
61.48	DF	.~.~.~ By optical irradiation
61.49	DF	.~.~.~ By vibration
61.51	DF	.~.~.~ Buoyant detector
61.52	DF	.~.~.~ Chromatography
61.53	DF	.~.~.~.~ Column detail
61.54	DF	.~.~.~.~ Paper or thin layer type
61.55	DF	.~.~.~.~ Including sampling, sample handling, or sample preparation
61.56	DF	.~.~.~.~ Detail of fluid handling means (e.g., valve, control, etc.)
61.57	DF	.~.~.~.~ With detail of compensation or regulating means
61.58	DF	.~.~.~.~ Detector detail
61.59	DF	.~.~.~ With detail of sampling, sample handling, or sample preparation
61.61	DF	.~.~.~ Detector detail
61.62	DF	.~.~ Depositing characteristic
61.63	DF	.~.~ Settling or filtering ability
61.64	DF	.~.~.~ By volume or flow rate
61.65	DF	.~.~.~ Sedimentation rate
61.66	DF	.~.~.~.~ With means for accelerating solids (e.g., particles)
61.67	DF	.~.~.~.~ By pressure measurement
61.68	DF	.~.~.~.~ Including detail of fluid handling means, sampling, sample handling, or sample preparation
61.69	DF	.~.~.~.~ By optical measurement
61.71	DF	.~.~ For measuring solid components (e.g., particles)
61.72	DF	.~.~.~ By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.)
61.73	DF	.~.~.~ By flowing through barrier or restriction and measuring flow effect (e.g., pressure, volume of or rate of flow)
61.74	DF	.~.~.~.~ Thermal
61.75	DF	.~.~.~ Vibration
61.76	DF	.~.~ By thermal measurement
61.77	DF	.~.~.~ Vaporization (e.g., evaporation, distillation, etc.)
61.78	DF	.~.~ By pressure measurement
61.79	DF	.~.~ By vibration
64.41	DF	.~ Gelling or coagulation
64.42	DF	.~.~ By vibration
64.43	DF	.~.~ By optical measurement
64.44	DF	.~ Vapor-liquid ratio
64.45	DF	.~ Vapor pressure
64.46	DF	.~.~ Differential pressure
64.47	DF	.~ Osmotic pressure (e.g., diffusion characteristic)
64.48	DF	.~ Surface tension
64.49	DF	.~.~ By force or torque
64.51	DF	.~.~ By pressure
64.52	DF	.~.~ Liquid droplet
64.53	DF	.~ By vibration
64.54	DF	.~ Molecular weight
64.55	DF	.~ Interface
64.56	DF	.~ Sampler, constituent separation, sample handling, or sample preparation
65.01	DF	CENTER OF GRAVITY; TURNING MOMENT; METACENTRIC HEIGHT
65.02	DF	.~ Spherical specimen
65.03	DF	.~ Ball driving sporting implement (e.g., golf club, baseball bat, etc.)
65.04	DF	.~ Watercraft (e.g., metacentric height)
65.05	DF	.~ Air or space vehicle
65.06	DF	.~.~ Electric sensor
65.07	DF	.~ Dynamic
65.08	DF	.~.~ Torsional oscillation
65.09	DF	.~ Electric sensor
66	DF	ROTOR UNBALANCE
455	DF	.~ Propeller, impeller, or fluid coupling
456	DF	.~.~ Single blade balancing
457	DF	.~ In situ
458	DF	.~.~ With counterbalancing means
459	DF	.~ Combined static and dynamic
460	DF	.~ Dynamic (spinning)
461	DF	.~.~ Mass centering
462	DF	.~.~ With electrical sensor and indicator
463	DF	.~.~.~ Wattmeter
464	DF	.~.~.~ Rotatable switch
465	DF	.~.~.~ Oscilloscope (cathode ray)
466	DF	.~.~.~ Stroboscopically illuminated
467	DF	.~.~.~.~ Indicator
468	DF	.~.~ With counterbalancing means
469	DF	.~.~.~ By radially and circumferentially adjustable weights
470	DF	.~.~.~ By circumferentially adjustable weights
471	DF	.~.~ With vibratable mount feature
472	DF	.~.~.~ Free floating rotor
473	DF	.~.~.~.~ Horizontal axis
474	DF	.~.~.~ One rotor end universally tiltable
475	DF	.~.~.~ Horizontal rotational axis
476	DF	.~.~.~.~ Horizontal plane of vibration
477	DF	.~.~.~.~.~ Both ends free
478	DF	.~.~.~.~.~.~ With selective endlock
479	DF	.~.~.~.~ Horizontal fulcrum
480	DF	.~ Gravitational moment turns rotor about spin axis
481	DF	.~.~ Ways
482	DF	.~ Gravitational moment tilts rotor about axis transverse to spin axis
483	DF	.~.~ Universally tiltable
484	DF	.~.~.~ With tapered rotor centering means
485	DF	.~.~.~ With expansible or contractible centering means
486	DF	.~.~.~ With suspension means
487	DF	.~ Tool and adjunct
570	DF	VIBRATION
570.5	DF	.~ Acoustic levitation
571	DF	.~ Test chamber
572	DF	.~ Loose object detection
573	DF	.~ Hardness or compliance
574	DF	.~ Mechanical impedance
575	DF	.~.~ Of an elastomer
576	DF	.~.~ Device having an electromagnetic drive
577	DF	.~ Fatigue study
578	DF	.~.~ Electromagnetic drive
579	DF	.~ Resonance, frequency, or amplitude study
580	DF	.~.~ Including weight determination
581	DF	.~.~ Including axial force determination
582	DF	.~.~ Including structural bond evaluation
583	DF	.~.~ Of aircraft or related structural element
584	DF	.~ By mechanical waves
585	DF	.~.~ Including ear or hearing testing
586	DF	.~.~ Reverberation
587	DF	.~.~ Acoustic emission
588	DF	.~.~ Structural bond evaluation
589	DF	.~.~ Acoustical impedance
590	DF	.~.~ In detection of a liquid reaction, a chemical reaction, or a nuclear reaction
591	DF	.~.~ Listening or sound tube
592	DF	.~.~ Fluid, fluid leak, or pipe flaw detection
593	DF	.~.~ Bearing, gear, or related moving mechanism
594	DF	.~.~ Soil or building structure
595	DF	.~.~ Frangible
596	DF	.~.~ Beamed
597	DF	.~.~.~ Velocity or propagation time measurement
598	DF	.~.~.~.~ For flaw or discontinuity detection
599	DF	.~.~.~ Attenuation measurement
600	DF	.~.~.~.~ For flaw or discontinuity detection
601	DF	.~.~.~ Having plural, diverse forms of radiant energy
602	DF	.~.~.~ With signal analyzing or mathematical processing
603	DF	.~.~.~ Acoustic holography
604	DF	.~.~.~.~ Having means substituted for reference signal
605	DF	.~.~.~.~ Liquid or deformable surface holography
606	DF	.~.~.~ Imaging of discontinuity with stationary sonic transmitter
607	DF	.~.~.~.~ By scan of a sonic receiver
608	DF	.~.~.~.~ By Bragg diffraction
609	DF	.~.~.~ Measuring or testing system having threshold, gating, delay, or blocking means
610	DF	.~.~.~.~ Electronic gating
611	DF	.~.~.~.~.~ Adjustably responsive to information signal
612	DF	.~.~.~.~.~ Plural gating
613	DF	.~.~.~.~.~ Of noise
614	DF	.~.~.~.~.~ Of signals to pass only echoes from within test body
615	DF	.~.~.~.~.~ Of signals to pass only echoes from front surface or flaw and from rear surface of test body
616	DF	.~.~.~.~.~ Of signals to pass only echoes from rear surface of test body
617	DF	.~.~.~.~ Having mechanical delay or mechanical blocking
618	DF	.~.~.~ Measuring or testing system having scanning means
619	DF	.~.~.~.~ Programmed scan
620	DF	.~.~.~.~ By reflected wave
621	DF	.~.~.~.~.~ Having compound scan
622	DF	.~.~.~.~.~ Of tubing, vessel, or cylindrical object
623	DF	.~.~.~.~.~.~ Scan from within object
624	DF	.~.~.~.~.~ Having separate sonic transmitter and receiver
625	DF	.~.~.~.~.~ Having plural sonic type transmitter or receiver transducers
626	DF	.~.~.~.~.~.~ Switched
627	DF	.~.~.~ By reflected wave
628	DF	.~.~.~.~ Having plural sonic type transmitters or receivers tranducers
629	DF	.~.~.~.~ Having unitary sonic type transmitter-receiver transducer
630	DF	.~.~.~.~.~ Establishing resonance in a test body
631	DF	.~.~.~.~.~ Having automatic gain control
632	DF	.~.~.~ Sonic wave transmitter or receiver transducer
633	DF	.~.~.~.~ Having transducer scanning means
634	DF	.~.~.~.~.~ Automatic transducer positioning
635	DF	.~.~.~.~.~ Rolling contact
636	DF	.~.~.~.~.~.~ On railroad rails
637	DF	.~.~.~.~.~.~ Around cylindrical object
638	DF	.~.~.~.~.~.~ Along cylindrical object
639	DF	.~.~.~.~.~.~ Transducer forms wheel or is within a wheel
640	DF	.~.~.~.~.~ Scanning curved surface in direction of curvature
641	DF	.~.~.~.~.~ Plural sonic transmitters or receivers
642	DF	.~.~.~.~ Having wave shaping means
643	DF	.~.~.~.~ Nonvibrating transducer
644	DF	.~.~.~.~ Having significant coupling means
645	DF	.~.~ Acoustic parameter
646	DF	.~.~.~ Amplitude, power, or intensity
647	DF	.~.~.~.~ Current generating or modifying
648	DF	.~.~.~.~.~ Frequency sensitive
649	DF	.~ Sensing apparatus
650	DF	.~.~ Torsional
651	DF	.~.~ Vibratable reed
652	DF	.~.~ With inertia element
653	DF	.~.~.~ With light beam indicator
654	DF	.~.~.~ With electrically controlled indicator
655	DF	.~.~ With light beam indicator
656	DF	.~.~.~ By optical holography
657	DF	.~.~.~ By frequency or phase shift
658	DF	.~.~ With electrically controlled indicator
659	DF	.~.~.~ Spectrum analysis
660	DF	.~.~.~ Rotating machinery or device
661	DF	.~.~.~ Having a probe
662	DF	.~ Vibrator
663	DF	.~.~ Table, platform, or other support
664	DF	.~.~.~ Circuitry
665	DF	.~.~.~ Having fluid bearing or fluid pressure actuated
666	DF	.~.~.~ Having spring support
667	DF	.~.~.~ Eccentrically vibrated
668	DF	.~.~.~ Electromagnetically vibrated
669	DF	.~.~ Vehicle shaker
670	DF	.~.~.~ Treadmill
671	DF	.~.~ Having a fluid jet
672	DF	.~.~ Having a rotatable imbalanced mass
73	DF	MOISTURE CONTENT OR ABSORPTION CHARACTERISTIC OF MATERIAL
74	DF	.~ By residual capacity measurement
75	DF	.~ By heat conductivity
76	DF	.~ By desiccation or extraction
77	DF	.~ By wet and dry bulb temperature
78	DF	HARDNESS
79	DF	.~ Scleroscope or rebound
81	DF	.~ By penetrator or indentor
82	DF	.~.~ Impact type
83	DF	.~.~ With successive minor and major load
84	DF	.~.~ Soil bearing capacity
85	DF	.~.~ Penetrator element
86	DF	EMBRITTLEMENT OR EROSION
87	DF	DUCTILITY OR BRITTLENESS
760	DF	SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION
761	DF	.~ Threaded fastener stress
762	DF	.~ Indicating coating or sheet providing direct visual indication (e.g., cracking, color change)
763	DF	.~ Specified electrical sensor or system
764	DF	.~.~ Having level attainment counter
765	DF	.~.~ Compensation (e.g., linearization)
766	DF	.~.~.~ Temperature
767	DF	.~.~ Plural sensors at single location (e.g., diverse orientation, plural level)
768	DF	.~.~ Sensor embedded in specimen
769	DF	.~.~ Coupling circuit for specific additional purpose (e.g., noise suppression) or having specified structure
770	DF	.~.~.~ Peak indicating system
771	DF	.~.~.~ Having selector switching means
772	DF	.~.~.~ Plural sensed signal system
773	DF	.~.~.~ Specified signal transmitting link
774	DF	.~.~ Specified sensor structure
775	DF	.~.~.~ Bonded to specimen
776	DF	.~.~.~.~ Sensor comprises coating
777	DF	.~.~.~ Semiconductor
778	DF	.~.~.~ Vibratory element
779	DF	.~.~.~ Magnetic or inductive
780	DF	.~.~.~ Capacitive
781	DF	.~ Specified load or strain transmission device from specimen to electrical detector
782	DF	.~.~ Strain multiplier
783	DF	.~ Deformation or change in stress after fracture, cutting, or boring
784	DF	.~ Earth stresses
785	DF	.~ Prestressed specimen
786	DF	.~ In static structures (e.g., buildings, bridges)
787	DF	.~ Stress or strain history of a specimen without application of a load
788	DF	.~ By loading of specimen (e.g., strength of material test)
789	DF	.~.~ Stress-strain relationship determination
790	DF	.~.~.~ Compression
791	DF	.~.~.~ Graphical output
792	DF	.~.~.~.~ Moving chart
793	DF	.~.~.~.~.~ Drum
794	DF	.~.~ Plural diverse stress-strain tests or composite loads
795	DF	.~.~.~ Strain
796	DF	.~.~.~ Tension-compression
797	DF	.~.~.~.~ Alternating
798	DF	.~.~.~.~ Hydraulic or pneumatic actuation
799	DF	.~.~ Specimen cracking or crack propagation
800	DF	.~.~ Optical
801	DF	.~.~ Acoustic emission
802	DF	.~.~ Aircraft structure
803	DF	.~.~ Concrete
804	DF	.~.~ Model of structure to determine structure properties
805	DF	.~.~ Varied in response to specimen condition other than failure
806	DF	.~.~ Varied according to predetermined pattern
807	DF	.~.~.~ Applied directly by fluid pressure
808	DF	.~.~.~ Repetitive
809	DF	.~.~.~.~ Plural specimen
810	DF	.~.~.~.~ To failure
811	DF	.~.~.~.~ Electric control circuit or particular loading device
812	DF	.~.~.~.~ Flexing, bending, or folding
813	DF	.~.~.~.~ Compressive
814	DF	.~.~.~.~ Torsional
815	DF	.~.~.~.~ Shear
816	DF	.~.~.~ Hydraulic or pneumatic actuation
817	DF	.~.~.~ Motor driven actuating screw
818	DF	.~.~ Compressional
819	DF	.~.~.~ Plural specimen or multiaxial loading
820	DF	.~.~.~ Fluid displacement provides indication
821	DF	.~.~.~ To fracture, crushing, or yield point
822	DF	.~.~.~ Plastic flow or creep
823	DF	.~.~.~ Residual deformation (e.g., consolidation)
824	DF	.~.~.~ By rotating squeezing element
825	DF	.~.~.~ With hydraulic or pneumatic actuation
826	DF	.~.~ Tensile
827	DF	.~.~.~ Bond test
828	DF	.~.~.~ Strand or chain test
829	DF	.~.~.~.~ By roller
830	DF	.~.~.~.~ To failure
831	DF	.~.~.~ Having specified clamp
832	DF	.~.~.~.~ Interior to specimen
833	DF	.~.~.~.~ Jaws
834	DF	.~.~.~ To failure
835	DF	.~.~.~.~ Tear
836	DF	.~.~.~ Pendulum dynamometer
837	DF	.~.~.~ Hydraulic or pneumatic actuation
838	DF	.~.~ Rupture or burst strength of sheet material by transverse loading
839	DF	.~.~.~ Including cutting or piercing element
840	DF	.~.~.~ Hydraulic or pneumatic actuation
841	DF	.~.~ Shear
842	DF	.~.~.~ Bond
843	DF	.~.~.~ By rotary element
844	DF	.~.~.~ Impact (e.g., pendulum)
845	DF	.~.~.~ To fracture or failure
846	DF	.~.~.~ Opposing work holders including specimen
847	DF	.~.~ Torsion
848	DF	.~.~.~ To failure
849	DF	.~.~ Bending, flexing, or folding
850	DF	.~.~.~ Weld testing
851	DF	.~.~.~ To failure or fracture
852	DF	.~.~.~ Loading means intermediate stationary end holders or supports
853	DF	.~.~.~ Having opposite ends of specimen clamped
854	DF	.~.~.~ By angular displacement of opposite ends of specimen
855	DF	.~ Support, holder, or housing for unspecified type electrical sensing element
856	DF	.~ Specimen clamp, holder, or support
857	DF	.~.~ With hydraulic or pneumatic actuation of grip
858	DF	.~.~ Winding drum or roller type
859	DF	.~.~ With wedging or camming elements contacting specimen
860	DF	.~.~ Opposed pair
104	DF	SURFACE AND CUTTING EDGE TESTING
105	DF	.~ Roughness
112	DF	POWER PLANT OR UNIT EFFICIENCY
113	DF	.~ Automobile fuel consumption
114	DF	.~.~ Miles per gallon
115	DF	.~ Pressure derivative
116	DF	MOTOR AND ENGINE TESTING
117	DF	.~ With vehicle wheel supporting roller or belt
117.1	DF	.~ Utilizing a test chamber or tank to simulate operating conditions
117.2	DF	.~ Disparate tests under operating conditions
117.3	DF	.~.~ With continuous operation
117.4	DF	.~ Thrust measurement (e.g., jet engine)
118.1	DF	.~ Testing auxiliary unit
118.2	DF	.~.~ Intake air flow
119 R	DF	.~ Motor part
120	DF	.~.~ Piston ring
119 A	DF	.~.~ Fuel injection tests
121	DF	BRAKE TESTING
122	DF	.~ Slidable platform
123	DF	.~ Roller or belt wheel support
124	DF	.~.~ Relatively shiftable front and rear wheel supports
125	DF	.~.~ Inertia type
126	DF	.~.~ With driving effort indication
127	DF	.~.~.~ Single wheel portable unit
128	DF	.~ Road test attachment or adjunct
129	DF	.~ Vehicle installation
130	DF	.~ Single wheel rotating and resistance measuring means
131	DF	.~.~ Torque measuring lever
132	DF	.~ Brake depressor with measuring means
862	DF	DYNAMOMETERS
862.01	DF	.~ For testing force-biased connections
862.02	DF	.~.~ Ski bindings
862.03	DF	.~ For testing relative pulling power (e.g., for contests)
862.041	DF	.~ Responsive to multiple loads or load components
862.042	DF	.~.~ Along or about mutually orthogonal axes
862.043	DF	.~.~.~ Three dimensional (e.g., x, y, z axes)
862.044	DF	.~.~.~.~ Using a resistance strain gage
862.045	DF	.~.~ Using a resistance strain gage
862.046	DF	.~.~ Transducer array (e.g., columns and rows)
862.05	DF	.~.~ Applied to guidance means
862.06	DF	.~.~ On machine tools
862.07	DF	.~.~ To determine distribution of tensile stress
862.08	DF	.~ Responsive to torque
862.09	DF	.~.~ By absorption
862.11	DF	.~.~.~ Having plural brake means
862.12	DF	.~.~.~ Having friction brake means
862.13	DF	.~.~.~.~ Automatic load control
862.14	DF	.~.~.~ Having fluid brake means
862.15	DF	.~.~.~.~ Air brakes
862.16	DF	.~.~.~.~ Automatic load control
862.17	DF	.~.~.~ Having magnetic or electromagnetic brake means
862.18	DF	.~.~.~.~ Automatic load control
862.191	DF	.~.~ During transmission to an external load
862.21	DF	.~.~.~ For making or breaking threaded connections (e.g., torque measuring wrenches)
862.22	DF	.~.~.~.~ With variable capacity or sensitivity
862.23	DF	.~.~.~.~ With detection of specific torque value or condition (e.g., peak torque)
862.24	DF	.~.~.~.~.~ Rate of change
862.25	DF	.~.~.~.~ Power tongs
862.26	DF	.~.~.~.~ Bending beam type
862.27	DF	.~.~.~ With recording or totalizing means
862.28	DF	.~.~.~ With electrical computation of horsepower
862.29	DF	.~.~.~ By measuring reaction forces of a prime mover
862.31	DF	.~.~.~ By measuring reaction forces of transmission gearing
862.321	DF	.~.~.~ By measuring elastic deformation of a torque transmitting member
862.322	DF	.~.~.~.~ With rotary to linear conversion
862.323	DF	.~.~.~.~ Using a flowing fluid (e.g., using a shaft mounted nozzle and baffle)
862.324	DF	.~.~.~.~ Using a light sensor
862.325	DF	.~.~.~.~ Using an electrical sensor
862.326	DF	.~.~.~.~.~ Phase angle detection
862.327	DF	.~.~.~.~.~.~ Vernier type
862.328	DF	.~.~.~.~.~.~ By plural toothed or notched sensing means
862.329	DF	.~.~.~.~.~.~.~ Interlaced teeth
862.331	DF	.~.~.~.~.~ Inductance or reluctance sensor
862.332	DF	.~.~.~.~.~.~ Variable air gap in a magnetic core
862.333	DF	.~.~.~.~.~.~ Detecting magnetostrictive or magnetoelastic property
862.334	DF	.~.~.~.~.~.~.~ Grooved or slotted torsion shaft
862.335	DF	.~.~.~.~.~.~.~ Magnetic sleeve or layer
862.336	DF	.~.~.~.~.~.~.~.~ Particular constituent
862.337	DF	.~.~.~.~.~ Capacitance sensor
862.338	DF	.~.~.~.~.~ Resistance strain gage
862.339	DF	.~.~.~.~.~.~ With noncontact coupling (e.g., rotary transformer)
862.37	DF	.~.~.~ By measuring the fluid pressure of a hydraulic coupling
862.192	DF	.~.~.~ By measuring angular acceleration
862.193	DF	.~.~.~ By measuring an electrical or magnetic characteristic of a torque delivering electric motor
862.194	DF	.~.~.~ By measuring tension in a drive belt or chain
862.195	DF	.~.~.~ By converting transmitted torque into axial force
862.381	DF	.~ Responsive to force
862.391	DF	.~.~ To determine tension on a flexible element
862.41	DF	.~.~.~ By measuring vibrations (e.g., resonant frequency)
862.42	DF	.~.~.~ By applying a measured tensioning force
862.43	DF	.~.~.~.~ Racket stringing
862.44	DF	.~.~.~.~ With winding or reeling means
862.451	DF	.~.~.~ By measuring deflection or a deflecting force
862.452	DF	.~.~.~.~ For testing racket stringing
862.453	DF	.~.~.~.~ For testing a drive belt
862.454	DF	.~.~.~.~ Using a fluid for deflection or force measuring
862.46	DF	.~.~.~.~ With angular deflection
862.471	DF	.~.~.~.~ Using an elastically deformable force measuring means
862.472	DF	.~.~.~.~.~ With pivoted deflecting member between spaced guides or supports
862.473	DF	.~.~.~.~.~ Electrical sensor
862.474	DF	.~.~.~.~.~.~ Resistance strain gage
862.392	DF	.~.~.~ By measuring axial force or stretch
862.393	DF	.~.~.~.~ Pulling force on an anchoring device
862.49	DF	.~.~ To determine axial thrust on a rotating machine element
862.51	DF	.~.~ With recording means
862.52	DF	.~.~ With variable capacity or sensitivity
862.53	DF	.~.~ With detection of specific force value or condition (e.g., peak force)
862.541	DF	.~.~ Combined
862.55	DF	.~.~.~ With pressure applying roller (e.g., mill roll)
862.56	DF	.~.~.~ With hoisting means
862.57	DF	.~.~.~ With towing means
862.542	DF	.~.~.~ With jack or press
862.543	DF	.~.~.~ With pumping unit
862.581	DF	.~.~ By measuring a fluid pressure
862.582	DF	.~.~.~ Using a load responsive valve or restrictor
862.583	DF	.~.~.~.~ Pneumatic
862.584	DF	.~.~.~ Using a piston
862.59	DF	.~.~ By measuring vibrations (e.g., resonant frequency)
862.61	DF	.~.~ By measuring a counterbalancing or restoring force
862.621	DF	.~.~ By measuring elastic deformation
862.622	DF	.~.~.~ With compensation
862.623	DF	.~.~.~.~ Temperature
862.624	DF	.~.~.~ Using a light sensor
862.625	DF	.~.~.~ Using a specific type of electrical sensor
862.626	DF	.~.~.~.~ Inductance or capacitance sensor
862.627	DF	.~.~.~.~ Resistance strain gage
862.628	DF	.~.~.~.~.~ Including a specific type of electrical circuit
862.629	DF	.~.~.~.~.~ Specific type of elastic member
862.631	DF	.~.~.~.~.~.~ Axle or pivot pin
862.632	DF	.~.~.~.~.~.~ Flexible element (e.g., beam, plate, or web)
862.633	DF	.~.~.~.~.~.~.~ Parallel
862.634	DF	.~.~.~.~.~.~.~ Cantilever
862.635	DF	.~.~.~.~.~.~ Closed loop (e.g., ring or tube)
862.636	DF	.~.~.~ Specific type of elastic member
862.637	DF	.~.~.~.~ Flexible element (e.g., beam, plate, or web)
862.638	DF	.~.~.~.~.~ Parallel
862.639	DF	.~.~.~.~.~ Cantilever
862.641	DF	.~.~.~.~ Helical or spiral
862.642	DF	.~.~.~.~ Closed loop (e.g., ring or tube)
862.68	DF	.~.~ By measuring electrical properties
862.69	DF	.~.~ By measuring magnetic properties
862.382	DF	.~.~ With detail of overload protection
146	DF	TIRE, TREAD OR ROADWAY
146.2	DF	.~ Tire inflation testing installation
146.3	DF	.~.~ By direct fluid pressure reading
146.4	DF	.~.~.~ Telemetric (e.g., indicator on cowl)
146.5	DF	.~.~.~.~ Electric
146.8	DF	.~.~.~ Tire stem attachments
147	DF	WIND TUNNEL: AERODYNAMIC WING AND PROPELLER STUDY
148	DF	MODEL BASIN AND TESTING TANK
149	DF	VOLUMETRIC CONTENT MEASURING
150 R	DF	COATING MATERIAL: INK ADHESIVE AND/OR PLASTIC
150 A	DF	.~ Bond strength
152.01	DF	BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW)
152.02	DF	.~ Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives)
152.03	DF	.~.~ During drilling
152.04	DF	.~.~.~ By drill mud analysis
152.05	DF	.~.~ Density, porosity, or permeability
152.06	DF	.~.~.~ Including oil, gas, or water saturation
152.07	DF	.~.~.~ By a core sample analysis
152.08	DF	.~.~ Oil, gas, or water saturation
152.09	DF	.~.~.~ By a core sample analysis
152.11	DF	.~.~ By a core sample analysis
152.12	DF	.~.~ Thermal
152.13	DF	.~.~.~ With heating or cooling
152.14	DF	.~.~ With radioactivity measuring
152.15	DF	.~.~.~ With vibration measuring
152.16	DF	.~.~ With vibration measuring
152.17	DF	.~.~ With detail of a borehole wall engaging means
152.18	DF	.~ Fluid flow measuring or fluid analysis
152.19	DF	.~.~ During drilling
152.21	DF	.~.~.~ Rate of fluid flow
152.22	DF	.~.~.~ Pressure
152.23	DF	.~.~ With sampling
152.24	DF	.~.~.~ From formation wall
152.25	DF	.~.~.~.~ With a filter
152.26	DF	.~.~.~.~ With sealing detail
152.27	DF	.~.~.~ Pressure
152.28	DF	.~.~.~ Downhole
152.29	DF	.~.~ Rate of fluid flow
152.31	DF	.~.~.~ Plural diverse measuring
152.32	DF	.~.~.~ Vibration
152.33	DF	.~.~.~ Thermal
152.34	DF	.~.~.~ Rotary
152.35	DF	.~.~.~.~ Magnetic
152.36	DF	.~.~.~ Packer or deflector detail
152.37	DF	.~.~ Steady state fluid flow interruption
152.38	DF	.~.~.~ Drawdown or shutin test
152.39	DF	.~.~ Fluid injection into formation
152.41	DF	.~.~.~ Determining permeability or saturation
152.42	DF	.~.~ Determining relative proportion of fluid constituent
152.43	DF	.~ During drilling
152.44	DF	.~.~ Drill depth rate
152.45	DF	.~.~.~ Electronic processing or electronic recording
152.46	DF	.~.~ Downhole measurement
152.47	DF	.~.~.~ Vibration
152.48	DF	.~.~.~ Force
152.49	DF	.~.~ Force
152.51	DF	.~ Pressure measurement
152.52	DF	.~.~ Plural diverse measurements
152.53	DF	.~.~ With recorder
152.54	DF	.~ Downhole test
152.55	DF	.~.~ Fluid test
152.56	DF	.~.~ Free point or stuck point
152.57	DF	.~.~ Casing or cementing
152.58	DF	.~.~ Using vibration
152.59	DF	.~.~ By measurement of response due to force
152.61	DF	.~ Pump test
152.62	DF	.~.~ With recorder
156	DF	STATISTICAL RECORD VERIFYING
157	DF	RECORD STRIP SPROCKET HOLE TESTING
158	DF	HOISTING CABLE AND ROPE
159	DF	SHEET, WOVEN FABRIC OR FIBER
160	DF	.~ Filament
161	DF	SPRING TESTING
162	DF	TOOTHED GEAR
163	DF	COIN
164	DF	MINER'S LAMP
167	DF	ORDNANCE AND PROJECTILE
168	DF	BLOWER, PUMP, AND HYDRAULIC EQUIPMENT
169	DF	FLOUR, DOUGH, OR BREAD
172	DF	ORTHOPEDIC PRESSURE DISTRIBUTION
178 R	DF	NAVIGATION
179	DF	.~ Rate of climb (pressure type)
180	DF	.~ Leeway incidence or side-slip
181	DF	.~ Ship's log
182	DF	.~.~ Pressure differential type
183	DF	.~.~.~ With integrating means
184	DF	.~.~ Drag type
185	DF	.~.~.~ Rotary
186	DF	.~.~ Vane type
187	DF	.~.~ Rotary
178 H	DF	.~ Helicopter
178 T	DF	.~ Take-off and landing monitors
170.01	DF	FLUID FLOW DIRECTION (E.G., WIND SOCK, WEATHER VANE, ETC.)
170.02	DF	.~ Relative to aircraft or watercraft
170.03	DF	.~.~ Sailboat (e.g., sailing aid)
170.04	DF	.~ Using a drifter or tracer (e.g., smoke)
170.05	DF	.~ Using a fluid actuated alignment device (e.g., wind sock, weather vane, etc.)
170.06	DF	.~.~ With illumination means or an electro-optical indicator (e.g., beacon or signal lamp)
170.07	DF	.~.~ With velocity determination
170.08	DF	.~.~.~ Electric sensor
170.09	DF	.~.~ Electric sensor
170.11	DF	.~ With velocity determination
170.12	DF	.~.~ Thermal
170.13	DF	.~.~ Acoustic
170.14	DF	.~.~ Fluid pressure differential
170.15	DF	.~.~ Thrust or drag force
170.16	DF	METEOROLOGY
170.17	DF	.~ Precipitation (e.g., rain gauge)
170.18	DF	.~.~ With recorder detail
170.19	DF	.~.~ With heater or vaporizer
170.21	DF	.~.~ Sensing accumulated amount (e.g, rain gauge)
170.22	DF	.~.~.~ Using a float
170.23	DF	.~.~.~ Weight actuated (e.g., tipping bucket)
170.24	DF	.~ Electric disturbance (e.g., lightning)
170.25	DF	.~ Micrometeorite
170.26	DF	.~ Icing condition (e.g., accretion)
170.27	DF	.~ Naturally occurring radiation (e.g., solar radiation)
170.28	DF	.~ Using unmanned, self-controlled airborne instrumentation carrier (e.g., radiosonde)
170.29	DF	OCEANOLOGY (E.G., OCEANS, RIVERS, OR LAKES)
170.31	DF	.~ Surface wave
170.32	DF	.~ Bottom sediment or soil
170.33	DF	.~ Towed probe
170.34	DF	.~ Unattached, self-contained probe with buoyancy controlled level of descent
861	DF	VOLUME OR RATE OF FLOW
861.01	DF	.~ With indirect temperature or density compensation
861.02	DF	.~.~ Electrical
861.03	DF	.~.~.~ Digital
861.04	DF	.~ Of selected fluid mixture component
861.05	DF	.~ By measuring transit time of tracer or tag
861.06	DF	.~.~ With autocorrelation or cross-correlation detection
861.95	DF	.~.~ Thermal tracer or tag
861.07	DF	.~ By measuring tracer concentration
861.08	DF	.~ By measuring electrical or magnetic properties
861.09	DF	.~.~ Ionization type
861.11	DF	.~.~ Electromagnetic induction (e.g., Faraday type)
861.12	DF	.~.~.~ With detecting electrodes
861.13	DF	.~.~.~.~ Including permanent magnet or D.C. field
861.14	DF	.~.~.~.~ For dielectric fluids
861.15	DF	.~.~.~.~ Plural pairs of detecting electrodes
861.16	DF	.~.~.~.~ Including electrically interconnected or synchronized input and output circuit
861.17	DF	.~.~.~.~.~ Selective or periodic sampling
861.18	DF	.~ By measuring vibrations or acoustic energy
861.19	DF	.~.~ Produced by fluidic oscillator
861.21	DF	.~.~ Caused by fluid interaction with obstacle
861.22	DF	.~.~.~ Vortex shedders
861.23	DF	.~.~.~.~ Acoustic
861.24	DF	.~.~.~.~ Movable sensor responsive to vortices
861.25	DF	.~.~ Reflection or scattering of acoustic waves
861.26	DF	.~.~ Deflection of acoustic waves
861.27	DF	.~.~ Transit time of acoustic waves
861.28	DF	.~.~.~ Transmitted along single path
861.29	DF	.~.~.~.~ In both directions simultaneously
861.31	DF	.~.~.~ Transmitted along parallel paths
861.32	DF	.~ By measuring swirl rate imparted by static means
861.33	DF	.~.~ With turbine in a swirl chamber
861.34	DF	.~.~ Precess type
861.351	DF	.~ Mass flow by imparting angular or transverse momentum to the fluid
861.352	DF	.~.~ Rotated resiliently coupled elements
861.353	DF	.~.~ Reaction turbine or vane
861.354	DF	.~.~ Coriolis or gyroscopic
861.355	DF	.~.~.~ Vibrated conduit
861.356	DF	.~.~.~.~ Signal processing or analysis details
861.357	DF	.~.~.~.~ Drive and sensor element located on straight conduit portion
861.39	DF	.~ Using an applied fluid jet
861.41	DF	.~ By counting drops, bubbles, or particles
195	DF	.~ System
196	DF	.~.~ Flow comparing
197	DF	.~.~ Compound meter
198	DF	.~ Combined
199	DF	.~.~ With pressure regulator or demand limit
200	DF	.~.~ With gas and liquid separator
201	DF	.~.~ With connection or box
202	DF	.~ Proportional
202.5	DF	.~.~ Thermal sensing of flow
203	DF	.~.~ With valved proportioning means
204.11	DF	.~ Thermal type
204.12	DF	.~.~ With conduit extending between heat sinks
204.13	DF	.~.~ With auxiliary fluid contacting or in heat exchange relation with flow path (e.g., thermodilution)
204.14	DF	.~.~ Including digital or pulse measuring circuitry
204.15	DF	.~.~ Including detail of feedback or rebalancing circuitry
204.16	DF	.~.~.~ By control of a separate heating or cooling element
204.17	DF	.~.~ With distinct heating circuitry for a self-heated sensor
204.18	DF	.~.~ Including response characteristic or condition compensation
204.19	DF	.~.~.~ For temperature
204.21	DF	.~.~ With fluid flow deflector or restrictor (e.g., baffle, constriction)
204.22	DF	.~.~ With sensor housing
204.23	DF	.~.~ Having particular electrical heating, cooling, or thermal sensing element
204.24	DF	.~.~.~ Thermoelectric junction
204.25	DF	.~.~.~ Resistive element
204.26	DF	.~.~.~.~ With substrate carrier (e.g., thin film)
204.27	DF	.~.~.~.~ Wire type (e.g., hot wire)
861.42	DF	.~ Using differential pressure
861.43	DF	.~.~ With time integration
861.44	DF	.~.~.~ By electrical means
861.45	DF	.~.~.~ By mechanical means
861.46	DF	.~.~.~.~ Including pressure applied to liquid column or reservoir
861.47	DF	.~.~ Pressure applied to movable member (e.g., a diaphragm)
861.48	DF	.~.~.~ With linearization (e.g., square root extraction)
861.49	DF	.~.~ Pressure applied to liquid column or reservoir
861.51	DF	.~.~.~ With linearization
861.52	DF	.~.~ With restriction
861.53	DF	.~.~.~ Automatically variable restriction
861.54	DF	.~.~.~.~ Slotted piston or cylinder
861.55	DF	.~.~.~.~ Cone and ball or disk
861.56	DF	.~.~.~.~.~ With structure of coupling to indicator
861.57	DF	.~.~.~.~.~ With structure of float, float tube, or float guide
861.58	DF	.~.~.~.~ Orifice and tapered plug
861.59	DF	.~.~.~ Including recirculation pump
861.61	DF	.~.~.~ Orifice or flow nozzle
861.62	DF	.~.~.~.~ Adjustable
861.63	DF	.~.~.~ Venturi
861.64	DF	.~.~.~.~ Inlet or outlet structure
861.65	DF	.~.~ Pitot
861.66	DF	.~.~.~ Sensing at plural transverse locations
861.67	DF	.~.~.~ Adjustable
861.68	DF	.~.~.~ With heating element
861.69	DF	.~.~ Centrifugal
215	DF	.~ Weir type
216	DF	.~.~ Submerged orifice or discharge nozzle
*	DD	.~ Tank type
217	DF	.~.~ Rotary tank or bucket
218	DF	.~.~.~ With power drive
219	DF	.~.~ Plural measuring chamber
220	DF	.~.~.~ With fluid-pressure operated valve
221	DF	.~.~.~ With float operated valve
222	DF	.~.~.~ With siphon discharge
223	DF	.~.~ Single measuring chamber
224	DF	.~.~.~ With float operated valve
225	DF	.~.~.~.~ With trip gear
226	DF	.~.~.~ With siphon discharge
227	DF	.~ Area-velocity integrating
861.71	DF	.~ By measuring thrust or drag forces
861.72	DF	.~.~ By changing fluid direction
861.73	DF	.~.~ Impact of particulate material
861.74	DF	.~.~ On a vane
861.75	DF	.~.~.~ With rotation about a fixed axis
861.76	DF	.~.~.~.~ Spring biased
861.77	DF	.~ Using rotating member with particular electrical output or circuit
861.78	DF	.~.~ With pick-up coil
861.79	DF	.~ Using turbine
861.81	DF	.~.~ With response modification
861.82	DF	.~.~.~ Pressure responsive valve or restriction
861.83	DF	.~.~.~ Axial supply and delivery
861.84	DF	.~.~.~.~ Differentially responsive turbines
861.85	DF	.~.~ Anemometers
861.86	DF	.~.~ With fluid directed radially outward
861.87	DF	.~.~ With flow direction retained in a plane perpendicular to turbine axis
861.88	DF	.~.~.~ Mechanical coupling to indicator
861.89	DF	.~.~ Axial supply and delivery
861.91	DF	.~.~.~ With structure to reduce friction or wear
861.92	DF	.~.~.~ With structure of bearing or turbine support structure
861.93	DF	.~.~.~ With mechanical coupling to indicator
861.94	DF	.~.~.~ With magnetic coupling drive assembly
232	DF	.~ Expansible chamber
233	DF	.~.~ With variable indicator drive
234	DF	.~.~ Wet type (e.g., liquid seal)
235	DF	.~.~.~ Rotary drum
236	DF	.~.~.~ Oscillating bell or drum
237	DF	.~.~.~ Reciprocating bell
238	DF	.~.~.~ Nutating bell
239	DF	.~.~ Reciprocating piston or cylinder
240	DF	.~.~.~ Transversely reciprocating piston and cylinder
241	DF	.~.~.~ Oscillating cylinder
242	DF	.~.~.~ Valveless
243	DF	.~.~.~ Duplex
244	DF	.~.~.~.~ Wobble plate or cam
245	DF	.~.~.~.~ With transverse shaft
246	DF	.~.~.~.~.~ With single distributing valve
247	DF	.~.~.~ Radial cylinder
248	DF	.~.~.~ Valved piston
249	DF	.~.~.~ With fluid actuated valve
250	DF	.~.~.~ With piston or rod actuated valve gear
251	DF	.~.~.~.~ With trip gear
252	DF	.~.~ Oscillating piston
253	DF	.~.~ Rotary piston or cylinder
254	DF	.~.~.~ With compensating bypass
255	DF	.~.~.~ With orbital movement
256	DF	.~.~.~.~ Plural stationary abutment
257	DF	.~.~.~.~ Single stationary abutment
258	DF	.~.~.~.~.~ Nutating piston
259	DF	.~.~.~ With sliding vane
260	DF	.~.~.~ With swinging vane
261	DF	.~.~.~ With interengaging pistons
262	DF	.~.~ Diaphragm or collapsible wall
263	DF	.~.~.~ Multiple diaphragm
264	DF	.~.~.~.~ Duplex
265	DF	.~.~.~.~ With rotary valve
266	DF	.~.~.~.~.~ Crank operated
267	DF	.~.~.~.~.~.~ With flag rod
268	DF	.~.~.~.~ With oscillating or reciprocating valve
269	DF	.~.~.~ Single diaphragm
270	DF	.~.~.~.~ With diaphragm actuated valve trip gear
271	DF	.~.~.~.~ With fluid actuated valve
272 R	DF	.~ Element
273	DF	.~.~ Casing
274	DF	.~.~.~ Diaphragm meter type
275	DF	.~.~ Antireversing mechanism
276	DF	.~.~.~ Check valve
277	DF	.~.~ "Frostproof" construction
278	DF	.~.~ Diaphragm mounting
279	DF	.~.~ Diaphragm
280	DF	.~.~.~ With oiling structure
281	DF	.~.~ Tangent adjustment
272 A	DF	.~.~ With remote register
290 R	DF	LIQUID LEVEL OR DEPTH GAUGE
291	DF	.~ With other measuring device
292	DF	.~.~ Thermometer
293	DF	.~ With illumination
294	DF	.~ With funnel or hose nozzle
295	DF	.~ Thermal type
296	DF	.~ Weighing type
297	DF	.~ Test cock type
298	DF	.~ Exploring tube
299	DF	.~ Hydrostatic pressure type
300	DF	.~.~ Bathometer type
301	DF	.~.~ With electrically controlled indicator
302	DF	.~.~ With fluid displacement or replenishment
303	DF	.~.~.~ Suction type or vacuum tank action
304 R	DF	.~ Immersible electrode type
304 C	DF	.~.~ Capacitative
305	DF	.~ Float
306	DF	.~.~ Combined
307	DF	.~.~.~ With warning signal or alarm
308	DF	.~.~.~.~ Electric
309	DF	.~.~ Buoyancy type
310	DF	.~.~ Total registering
311	DF	.~.~ Multiple floats
312	DF	.~.~ Recording
313	DF	.~.~ With electrically controlled indicator
314	DF	.~.~ With position sensing
315	DF	.~.~ With float lock
316	DF	.~.~ With fluid transmission
317	DF	.~.~ Pivoted float arm
318	DF	.~.~.~ With flexible cable transmission
319	DF	.~.~ Vertically reciprocable
320	DF	.~.~.~ With spiral cam or guide
321	DF	.~.~.~ With flexible cable transmission
322	DF	.~.~.~ Indicator stem attached
322.5	DF	.~.~ Float structure
323	DF	.~ Sight glass
324	DF	.~.~ With cleaner
325	DF	.~.~ With guard or casing
326	DF	.~.~.~ Boiler type
327	DF	.~.~ Reflector or magnifier
328	DF	.~.~ Boiler type
329	DF	.~.~.~ Duplex or multiple section
330	DF	.~.~.~ Transparent closure plate type
331	DF	.~.~.~.~ Bull's eye type
332	DF	.~.~.~ With valve
333	DF	.~.~.~.~ Safety feature
334	DF	.~.~ Transparent closure plate type
290 B	DF	.~ Ullage volume
290 V	DF	.~ Vibratory type
379.01	DF	MUSCULAR FORCE (E.G., STRENGTH TESTING, EXERCISING OR TRAINING EFFORT, ETC.)
379.02	DF	.~ Jaw or hand (e.g., gripping, pinching, or biting)
379.03	DF	.~.~ Using a resilient force-resister
379.04	DF	.~ Impact
379.05	DF	.~.~ Using a resilient force-resister
379.06	DF	.~ Including a rotary element with a braking means (e.g., friction brake)
379.07	DF	.~.~ Pedal driven (e.g., cycle ergometer)
379.08	DF	.~ Using a resilient force-resister
379.09	DF	.~ Using hydraulic or pneumatic force-resister
382 R	DF	GRAVITATIONAL DETERMINATION
383	DF	.~ Torsion balance
382 G	DF	.~ Gravitational variation
488	DF	SPEED, VELOCITY, OR ACCELERATION
489	DF	.~ Recording or registering interrelated factors
490	DF	.~ With distance registering means
491	DF	.~ With means for retaining reading
492	DF	.~.~ Maximum acceleration
493	DF	.~ Structural installation or mounting means
494	DF	.~.~ Installed in rotary speed source
495	DF	.~ Indicating diverse conditions
496	DF	.~ Vibration control or antistick means for reading structure
497	DF	.~ Temperature compensator
498	DF	.~ Adjusting means for reading structure
499	DF	.~ Illuminated reading device
500	DF	.~ Liquid surface is or moves reading means
501	DF	.~.~ Surface of revolving liquid body
502	DF	.~ Externally connected pressure gauge gives reading
503	DF	.~ Means integrating time and acceleration
503.3	DF	.~.~ Gyroscope
504.01	DF	.~ Angular rate using wave or beam motion (e.g., Sagnac type)
504.02	DF	.~ Angular rate using gyroscopic or Coriolis effect
504.03	DF	.~.~ Multisensor for both angular rate and linear acceleration
504.04	DF	.~.~.~ Vibratory mass
504.05	DF	.~.~ Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
504.06	DF	.~.~.~ Fluid jet
504.07	DF	.~.~.~ Rotary
504.08	DF	.~.~ Rotary gyroscope
504.09	DF	.~.~.~ Gimbal support
504.11	DF	.~.~.~ Flexible rotor or flexibly mounted rotor
504.12	DF	.~.~ Vibratory mass
504.13	DF	.~.~.~ Hollow circular-shaped inertial element
504.14	DF	.~.~.~ Elongated element with spaced supports
504.15	DF	.~.~.~ Cantilever
504.16	DF	.~.~.~.~ Tuning fork
504.17	DF	.~ Angular rate using a fluid vortex rate sensor
504.18	DF	.~ With rotary gyroscope
506	DF	.~ Means integrating intermittent speed source impulses
507	DF	.~ Comparison to a fixed standard, master or reference speed device
508	DF	.~ With governor drive failure responsive means
509	DF	.~ With response to a nonspeed condition
510	DF	.~ Response to multiple sensing means or motion conditions
511	DF	.~.~ Response to both velocity and acceleration
512	DF	.~.~.~ Centrifugal-type velocity sensor and separate inertial means
513	DF	.~ With manual control
514.01	DF	.~ Acceleration determination utilizing inertial element
514.02	DF	.~.~ Angular acceleration
514.03	DF	.~.~.~ Fluid or fluent inertial mass (e.g., electrons, ions, plasma)
514.04	DF	.~.~.~ Inertial flywheel
514.05	DF	.~.~ Fluid or fluent material
514.06	DF	.~.~.~ Fluid or fluent material support of an inertial element
514.07	DF	.~.~.~.~ Gas
514.08	DF	.~.~.~.~ Magnetic fluid
514.09	DF	.~.~.~ Fluid or fluent inertial mass
514.11	DF	.~.~.~ Detection by fluid pressure
514.12	DF	.~.~.~ Fluid or fluent material dampening of an inertial element
514.13	DF	.~.~.~.~ Gas
514.14	DF	.~.~ Specific type of dampener (e.g., eddy current dampener)
514.15	DF	.~.~ Spinning or vibrating accelerometer
514.16	DF	.~.~ Specific type of electric sensor or specific type of magnetic sensor
514.17	DF	.~.~.~ Rebalance
514.18	DF	.~.~.~.~ Electrostatic restoring means
514.19	DF	.~.~.~.~ Radiant energy sensor (e.g., optical, charged, or radioactive particle)
514.21	DF	.~.~.~.~ Pendulum or beam
514.22	DF	.~.~.~.~.~ Including a bearing support
514.23	DF	.~.~.~.~.~ Including a flexure support
514.24	DF	.~.~.~.~ Including an elastic support for an inertial element (e.g., spring)
514.25	DF	.~.~.~ Charged particle or radioactive particle sensor
514.26	DF	.~.~.~ Optical sensor
514.27	DF	.~.~.~.~ Frequency or phase shift
514.28	DF	.~.~.~ Surface acoustical wave
514.29	DF	.~.~.~ Having a vibrating element
514.31	DF	.~.~.~ Inductive or magnetic sensor (e.g., Hall effect sensor)
514.32	DF	.~.~.~ Capacitive sensor
514.33	DF	.~.~.~ Resistive sensor
514.34	DF	.~.~.~ Piezoelectric sensor
514.35	DF	.~.~ Electric
514.36	DF	.~.~ Pendulum or beam
514.37	DF	.~.~.~ Including a pivot support
514.38	DF	.~.~ Including an elastic support for an inertial element (e.g., spring)
514.39	DF	.~ Magnetic speed measuring or mechanical speed measuring with ancillary magnetic means or with ancillary electrical means
519.01	DF	.~.~ Eddy current drag means (e.g., drag cup)
520.01	DF	.~.~.~ With a flux adjusting means
521	DF	.~ Fluid
522	DF	.~.~ Dampening means
523	DF	.~.~ Expansible chamber devices
524	DF	.~.~ Fluid coupling or torque convertor type
525	DF	.~.~ Brake (e.g., vanes in air)
526	DF	.~ With dampening or shock-absorbing means
527	DF	.~ With input means
528	DF	.~.~ Selective speed transmitter
529	DF	.~.~ Frictional (e.g., friction wheels)
530	DF	.~ With output transmitting mechanism
531	DF	.~.~ With transmission adjustment means
532	DF	.~.~ Gear
533	DF	.~.~.~ Rectilinear rack
534	DF	.~.~ Surface and follower
535	DF	.~ Centrifugal weight type
536	DF	.~.~ Weight lever arm or pivot automatically variable during operation
537	DF	.~.~ Bias automatically variable during operation
538	DF	.~.~.~ Snap action
539	DF	.~.~ Limit stop for weight
540	DF	.~.~ With adjusting means
541	DF	.~.~.~ Diverse
542	DF	.~.~.~ Biasing weight
543	DF	.~.~.~ Lever or gear adjustor
544	DF	.~.~.~ Adjusting screw means and bias spring concentric to centrifugal axis
545	DF	.~.~.~ Spring and adjustor connect paired weights
546	DF	.~.~ Leaf spring biasing means
547	DF	.~.~ Toggle joint mounted
548	DF	.~.~ Radially projecting striker type
549	DF	.~.~ Rigid mass crossing axis at an acute angle
550	DF	.~.~ Weighted bell crank lever type
551	DF	.~.~ Surface and follower (e.g., cam or weight as wedge)
384	DF	BAROMETER (E.G., ALTIMETER)
385	DF	.~ Mercury
386	DF	.~ Aneroid
387	DF	.~.~ Settable
700	DF	FLUID PRESSURE GAUGE
701	DF	.~ Null balance type
702	DF	.~ Vibration type
703	DF	.~.~ Ultrasonic
704	DF	.~.~ Vibrating strip or wire
705	DF	.~ Photoelectric
706	DF	.~ With protective separator
707	DF	.~ With fluid pulsation dampener
708	DF	.~ With pressure and/or temperature compensation
709	DF	.~ With excess or maximum registering
710	DF	.~ With steam trap
711	DF	.~ With variable drive
712	DF	.~ With recorder
713	DF	.~ With float
714	DF	.~ Combined
715	DF	.~ Diaphragm
716	DF	.~.~ Multiple and/or differential
717	DF	.~.~.~ With electrical readout
718	DF	.~.~.~.~ Capacitive
719	DF	.~.~.~.~ Resistive
720	DF	.~.~.~.~.~ Strain gauge
721	DF	.~.~.~.~.~.~ Piezoresistive
722	DF	.~.~.~.~ Electromagnetic
723	DF	.~.~ With electrical readout
724	DF	.~.~.~ Capacitive
725	DF	.~.~.~ Resistive
726	DF	.~.~.~.~ Strain gauge
727	DF	.~.~.~.~.~ Piezoresistive
728	DF	.~.~.~ Electromagnetic
729.1	DF	.~.~ Bellows
729.2	DF	.~.~ Capsule
730	DF	.~.~ Expansible conduit
731	DF	.~.~ Sack
732	DF	.~ Bourdon
733	DF	.~.~ With electrical readout
734	DF	.~.~.~ Resistive
735	DF	.~.~.~ Electromagnetic
736	DF	.~.~ Multiple and/or differential
737	DF	.~.~ Intermediately supported
738	DF	.~.~ Safety pressure release casing
739	DF	.~.~ With mechanism dampening
740	DF	.~.~ With zeroizing adjustment
741	DF	.~.~ Bourdon tube and mounting
742	DF	.~.~.~ Helical Bourdon tube
743	DF	.~.~.~ Spiral Bourdon tube
744	DF	.~ Piston
745	DF	.~.~ With electrical readout
746	DF	.~.~.~ Resistive
747	DF	.~ U-tube liquid column
748	DF	.~.~ Sphygmomanometer
749	DF	.~.~ With electrical readout
750	DF	.~.~.~ Resistive
751	DF	.~ Balance
752	DF	.~ McLeod type
753	DF	.~ Electrical
754	DF	.~.~ Semiconductor
755	DF	.~.~ Pirani type
756	DF	.~ Mounting and connection
863	DF	SAMPLER, SAMPLE HANDLING, ETC.
863.01	DF	.~ Automatic control
863.02	DF	.~.~ Quantity or rate of flow responsive
863.03	DF	.~.~.~ Rate of sample flow continuously controlled
863.11	DF	.~ With heating or cooling
863.12	DF	.~.~ And separation
863.21	DF	.~ With constituent separation
863.22	DF	.~.~ Particle impact
863.23	DF	.~.~ Sieve, filter, or semipermeable membrane
863.24	DF	.~.~.~ Cleaning
863.25	DF	.~.~.~ Changing feature
863.31	DF	.~ Plural parallel systems
863.32	DF	.~.~ Pipette
863.33	DF	.~.~ Plural capture, single receiver
863.41	DF	.~ Flow divider, deflector, or interceptor
863.42	DF	.~.~ Attached to mouth of dumpable receptacle
863.43	DF	.~.~ Having precapture flow guide or homogenizer
863.44	DF	.~.~.~ Oscillating or reciprocating
863.45	DF	.~.~.~ Rotary
863.51	DF	.~.~ Having an upstream-facing-opening-type capture element
863.52	DF	.~.~.~ With receptacle
863.53	DF	.~.~.~.~ Mounted for flow zone traverse
863.54	DF	.~.~.~ Mounted for reciprocation
863.55	DF	.~.~.~ Oscillating
863.56	DF	.~.~.~ Rotary
863.57	DF	.~.~.~ With blocking means
863.58	DF	.~.~.~ Pitot tube type
863.61	DF	.~.~ Branched conduit
863.71	DF	.~ Conduit or passageway section capture chamber
863.72	DF	.~.~ Single valve unit
863.73	DF	.~.~.~ Capture chamber within valve unit
863.81	DF	.~ Withdrawing through conduit or receptacle wall
863.82	DF	.~.~ Capture element movable to plural loci
863.83	DF	.~.~ With metering means or pump
863.84	DF	.~.~.~ Expansible chamber
863.85	DF	.~.~ Lock or seal for sampler insertion or removal
863.86	DF	.~.~ Valve or restriction
863.91	DF	.~ Conveyor coacting
863.92	DF	.~.~ Integral with conveyor structure
864	DF	.~ Capture device
864.01	DF	.~.~ Pipette or cannula
864.02	DF	.~.~.~ Self-filling of self-limiting
864.03	DF	.~.~.~ With user mouth protection
864.11	DF	.~.~.~ With suction applying and liquid discharge means
864.12	DF	.~.~.~.~ With separate diluent supply
864.13	DF	.~.~.~.~ Piston within pipette
864.14	DF	.~.~.~.~ With particular connection or release means
864.15	DF	.~.~.~.~ With valve for connection to external pressure source
864.16	DF	.~.~.~.~ Piston and cylinder
864.17	DF	.~.~.~.~.~ Plural
864.18	DF	.~.~.~.~.~ Plural or adjustable limit stops
864.21	DF	.~.~.~ With sample supply to analyzer
864.22	DF	.~.~.~ With pipette contacting second fluid supply
864.23	DF	.~.~.~ Pipette fixed; source movable
864.24	DF	.~.~.~ Pipette longitudinally movable
864.25	DF	.~.~.~.~ And transversely movable
864.31	DF	.~.~ With capture device transporter
864.32	DF	.~.~.~ Cyclically operated scoop
864.33	DF	.~.~ Capture by fluid current
864.34	DF	.~.~ Sample meter or pump
864.35	DF	.~.~.~ Chamber with alternate pressure or vacuum applier
864.41	DF	.~.~ Cutter, tearer, or scraper
864.42	DF	.~.~.~ Jaw
864.43	DF	.~.~.~ Auger or drill
864.44	DF	.~.~.~ Corer
864.45	DF	.~.~.~.~ With corer advancing means
864.51	DF	.~.~ Receptacle type
864.52	DF	.~.~.~ Preevacuated
864.53	DF	.~.~.~ Mold
864.54	DF	.~.~.~.~ With suction applier
864.55	DF	.~.~.~.~ With diminutive fill passageway
864.56	DF	.~.~.~.~.~ Mating sections
864.57	DF	.~.~.~.~.~.~ Labyrinth
864.58	DF	.~.~.~.~ With sample conditioner
864.59	DF	.~.~.~.~ With holder or connector
864.61	DF	.~.~.~ Fluid displacement
864.62	DF	.~.~.~ Expansible chamber
864.63	DF	.~.~.~ With valve or closure
864.64	DF	.~.~.~.~ Side opening
864.65	DF	.~.~.~.~ Contact actuated
864.66	DF	.~.~.~.~ Support force or inertia actuated
864.67	DF	.~.~.~.~ Messenger actuated
864.71	DF	.~.~ Material for particulate adhesion
864.72	DF	.~.~ Capillary attraction retention
864.73	DF	.~.~ Conduit
864.74	DF	.~.~.~ With penetrating means
864.81	DF	.~ Analyzer supplier
864.82	DF	.~.~ Having sample capsule support
864.83	DF	.~.~ Having sample confining chamber
864.84	DF	.~.~.~ Connector for separable holder
864.85	DF	.~.~ Connector for separable holder
864.86	DF	.~.~.~ Septum structure
864.87	DF	.~.~.~ Syringe with connector
864.91	DF	.~ Sample holder
426	DF	MEASURING VESSEL
427	DF	.~ With depth indication
428	DF	.~.~ Removable indicator
429	DF	.~ Capacity adjustable
430	DF	INSTRUMENT MECHANISM DAMPENING
431	DF	INSTRUMENT CASING
865	DF	MASS
865.1	DF	HUMAN STRESS LIMIT (E.G., DECOMPRESSION GAUGE FOR DIVERS)
865.2	DF	HYDRAULIC ALTIMETER
865.3	DF	TESTING BY IMPARTING MOTION
865.4	DF	ANALYZING BODILY MOVEMENT (E.G., SKILLS OR KINETICS OF HANDWRITING)
865.5	DF	PARTICLE SIZE
865.6	DF	SIMULATED ENVIRONMENT (E.G., TEST CHAMBERS)
865.7	DF	TOUCH OR TASTE
865.8	DF	INSPECTING
865.9	DF	TESTING OF APPARATUS
866	DF	TESTING OF MATERIAL
866.1	DF	INSTRUMENT MECHANISM OR TRANSMISSION
866.2	DF	.~ Rate of change
866.3	DF	DISPLAY OR DISPLAY DEVICE DETAILS
866.4	DF	SPECIMEN MODEL OR ANALOG
866.5	DF	PROBE OR PROBE MOUNTING
432.1	DF	MISCELLANEOUS
		******************************
		CROSS-REFERENCE ART COLLECTIONS
		******************************
900	DF	AUTOMATIC GAIN CONTROL
901	DF	DIGITAL READOUT
		******************************
		DIGESTS
		******************************
DIG 1	DD	Vibration
DIG 2	DD	Magnetostrictive
DIG 3	DD	Hall effect
DIG 4	DD	Piezoelectric
DIG 5	DD	Liquid levels with magnetic transmission
DIG 8	DD	Fluid circuits
DIG 9	DD	Molten metal samplers
DIG 10	DD	Instrument mechanisms with acceleration compensation
DIG 11	DD	Photoelectric cell
		******************************
		FOREIGN ART COLLECTIONS
		******************************
FOR 100	DF	BORE HOLE AND DRILLING STUDY (73/151)
FOR 101	DF	.~ Drill depth-rate (73/151.5)
FOR 102	DF	.~ Formation logging (73/152)
FOR 103	DF	.~.~ By drill mud or core analyst (73/153)
FOR 104	DF	.~.~ Thermal (73/154)
FOR 105	DF	.~ Fluid intrusion, theft of flow study (73/155)

US Patent Class 73 MEASURING AND TESTING

Current as of: June, 1999 Click for Main Headings Click DF for Definitions Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

US Patent Class 73
MEASURING AND TESTING

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes