US Patent Class 454
VENTILATION



Electronic
File
Wrappers

Electronic
Patent
Documents

Paper
Patent
Documents

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



Products
and
Services

  DF  CLASS NOTES
1  DF  CHIMNEY OR STACK
2  DF  .~ Vehicle
3  DF  .~ Chimneytop or stacktop structure (e.g., cowl)
4  DF  .~.~ Cap closure
5  DF  .~.~.~ Pivoted
6  DF  .~.~.~.~ Plural, separately pivoted portions
7  DF  .~.~.~.~ Having remote control
8  DF  .~.~ Inlet and outlet
9  DF  .~.~.~ Having air current responsive adjustment means (e.g., wind vane, etc.)
10  DF  .~.~ Inlet
11  DF  .~.~.~ Having air current responsive adjustment means (e.g., wind vane, etc.)
12  DF  .~.~ With means for mounting on brick-type chimney
13  DF  .~.~.~ Chimneytop structure extends within chimney
14  DF  .~.~.~.~ Means for mounting to inner wall
15  DF  .~.~ With rotary means in air current (e.g., fan, etc.)
16  DF  .~.~.~ Driven by external power source
17  DF  .~.~.~ Having air current responsive adjustment means (e.g., wind vane, etc.)
18  DF  .~.~.~ Cage-type blade set
19  DF  .~.~.~.~ Including additional blade set
20  DF  .~.~ Having air current responsive adjustment means
21  DF  .~.~.~ Wind vane
22  DF  .~.~.~.~ With air current inducing jet
23  DF  .~.~.~.~.~ Centered within induced air current
24  DF  .~.~.~.~ Shield
25  DF  .~.~.~.~ Hood having outlet opening perpendicular to wind
26  DF  .~.~.~ Current regulator
27  DF  .~.~ Having readily movable air current regulating means
28  DF  .~.~.~ With temperature sensitive release
29  DF  .~.~.~ Continuously horizontal panel
30  DF  .~.~.~ Pivoted
31  DF  .~.~.~.~ Plural
32  DF  .~.~ T-top
33  DF  .~.~ Spiral or plural stacked rings
34  DF  .~.~ Four-side outlets with shield
35  DF  .~.~ Spaced cap
36  DF  .~.~.~ And spaced shield
37  DF  .~.~.~.~ And skirt deflector extending outwardly from chimney or stack
38  DF  .~.~.~ And skirt deflector extending outwardly from chimney or stack
39  DF  .~.~ Having air current inducing jet
40  DF  .~.~.~ Plural, in-series jets
41  DF  .~ Having liquid drain
42  DF  .~ Having internal air current guide
43  DF  .~ Having flue heater
44  DF  .~ Having lining or sleeve
45  DF  .~.~ Including breech opening
46  DF  .~.~ Pressurized air lining
47  DF  .~.~ Axially connected chimney or stack sections
48  DF  EXTERIOR VAULT OR MANHOLE COVER
49  DF  WORKSTATION VENTILATOR (E.G., HOOD, OFFTAKE, ETC.)
50  DF  .~ Spray booth
51  DF  .~.~ Having air inlet separate from access opening
52  DF  .~.~.~ Ceiling inlet
53  DF  .~.~ With outlet air treatment means
54  DF  .~.~.~ With means for liquid contact
55  DF  .~.~.~.~ Spraying nozzle
56  DF  .~ Covered workbench chamber (e.g., fume hood, etc.)
57  DF  .~.~ Having air inlet separate from access opening
58  DF  .~.~.~ Including flow adjustment means
59  DF  .~.~.~.~ Responsive to position of access door
60  DF  .~.~.~ And air outlet through access opening
61  DF  .~.~ Having outlet airway flow adjustment means
62  DF  .~.~.~ Plural airways with adjustable distribution means
63  DF  .~ Movable
64  DF  .~.~ Having sliding, communication, airway duct sections
65  DF  .~.~ Having canopy exhaust hood
66  DF  .~ Having inlet airway
67  DF  .~ Having canopy exhaust hood
68  DF  ELEVATOR
69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.)
70  DF  .~ Pressure regulation
71  DF  .~.~ Ventilation of aircraft cabin
72  DF  .~.~.~ Auxiliary control system
73  DF  .~.~.~ Mechanical operation of control system (e.g., by bellows or diaphragm, etc.)
74  DF  .~.~.~ Control system having electrical or electronic component
75  DF  .~ Having automatic control means
76  DF  .~ Aircraft
77  DF  .~.~ Freight
78  DF  .~ Waterborne
79  DF  .~.~ Freight
80  DF  .~.~.~ Nonperishable bulk foodstuff (e.g., grain ship)
81  DF  .~.~ Porthole ventilator
82  DF  .~.~ With moisture deflector or drain
83  DF  .~ Railcar, bus, or trailer
84  DF  .~.~ Locomotive cab
85  DF  .~.~.~ Condensation preventer (e.g., defroster, etc.)
86  DF  .~.~.~ Including dust guard for cab window opening
87  DF  .~.~ Sleeping car
88  DF  .~.~ Freight
89  DF  .~.~.~ Ice-bunker closure (e.g., for refrigerated railcar)
90  DF  .~.~.~ Refrigerated or heated
91  DF  .~.~.~.~ With air pump
92  DF  .~.~.~ With air pump
93  DF  .~.~ Condensation preventer (e.g., defroster, etc.)
94  DF  .~.~ Having exterior cap closure for vent
95  DF  .~.~ Having window or entry-door ventilation structure
96  DF  .~.~.~ Including dust guard for window opening
97  DF  .~.~.~.~ Inside of window
98  DF  .~.~.~.~ Outside of window
99  DF  .~.~ Having forced recirculation
100  DF  .~.~.~ Having forced recirulation means alone
101  DF  .~.~.~.~ Wind-operated fan
102  DF  .~.~.~.~ Wheel-axle operated fan
103  DF  .~.~ Having both inlet and outlet airways
104  DF  .~.~.~ Including unitary inlet and outlet housing
105  DF  .~.~.~ With air pump
106  DF  .~.~.~.~ Wind or wheel-axle operated
107  DF  .~.~ Having inlet airway
108  DF  .~.~.~ Including specific air distributor
109  DF  .~.~.~.~ Having adjustable deflector
110  DF  .~.~.~ Liquid contact
111  DF  .~.~.~ With deflecting separator-type filter
112  DF  .~.~.~ With air pump
113  DF  .~.~.~.~ Wind operated
114  DF  .~.~.~.~ Wheel-axle operated
115  DF  .~.~ Having outlet airway
116  DF  .~.~.~ With current inducing jet
117  DF  .~.~.~ With air pump (e.g., wind or wheel-axle operated, etc.)
118  DF  .~ Freight
119  DF  .~ Having external connection
120  DF  .~ Seat structure
121  DF  .~ Condensation preventer (e.g., defroster, etc.)
122  DF  .~.~ Air directed between double paned window
123  DF  .~.~ Air directed at window exterior
124  DF  .~.~ Side or rear window
125  DF  .~.~ Having sweeping air distributor
126  DF  .~.~ Having means for combining heated and unheated air
127  DF  .~.~ Having dashboard air distributor (e.g., for windshield, etc.)
128  DF  .~ Means for open window (e.g., deflector, etc.)
129  DF  .~.~ Sunroof
130  DF  .~.~ Windshield or rear window
131  DF  .~.~ At upper edge of sliding window
132  DF  .~.~.~ Having means to selectively adjust airflow
133  DF  .~.~.~ Having plural air passages
134  DF  .~.~ Pivoted window
135  DF  .~.~ Adjacent front edge of window
136  DF  .~ Roof structure
137  DF  .~.~ Including duct extending along roof
138  DF  .~.~.~ Having exterior inlet opening over windshield
139  DF  .~ Having forced recirculation
140  DF  .~.~ Forced recirculation alone or agitating fan
141  DF  .~ Having both inlet and outlet airways
142  DF  .~.~ Including unitary inlet and outlet housing
143  DF  .~ Having inlet airway
144  DF  .~.~ Including duct extending along floor
145  DF  .~.~ Selective inlet, outlet, and closure
146  DF  .~.~ Including exterior cowl inlet
147  DF  .~.~.~ With moisture deflector or drain
148  DF  .~.~.~ Ducting to heat exchanger
149  DF  .~.~.~ Having exterior door
150  DF  .~.~ Including exterior windshield inlet
151  DF  .~.~ Including exterior rear or rear-side inlet
152  DF  .~.~ Including specific air distributor
153  DF  .~.~.~ Sweeping type
154  DF  .~.~.~ Having swiveling nozzle
155  DF  .~.~.~ Having adjustable deflector
156  DF  .~.~ With air treatment means
157  DF  .~.~.~ Liquid contact
158  DF  .~.~.~ Porous filter
159  DF  .~.~.~ Heating
160  DF  .~.~.~.~ Having means for combining heated and unheated air
161  DF  .~.~.~.~ Having heat exchange core
162  DF  .~ Having outlet airway
163  DF  .~.~ With current inducing jet
164  DF  .~.~ Exterior side outlet
165  DF  .~.~ Exterior rear outlet
166  DF  VEHICULAR TUNNEL
167  DF  .~ With air pump
168  DF  MINE
169  DF  .~ With partition means (e.g., brattice, etc.)
170  DF  .~.~ Flexible sheet
171  DF  .~ Having inlet and outlet ductwork
172  DF  .~ Having inlet ductwork
173  DF  STORAGE AREA FOR PERISHABLES
174  DF  .~ Harvested crop ventilation
175  DF  .~.~ Having perforated or slotted duct contacting crop
176  DF  .~.~.~ Including insertion means
177  DF  .~.~.~ Horizontal and vertical perforated or slotted ducts
178  DF  .~.~.~.~ With air pump
179  DF  .~.~.~ Horizontal duct
180  DF  .~.~.~.~ With air pump
181  DF  .~.~.~ With air pump
182  DF  .~.~ Granular crop or corn ears
183  DF  .~ Provision safe
184  DF  ELECTRONIC CABINET
185  DF  HOLLOW PARTITION
186  DF  .~ Having blower
187  DF  CLEAN ROOM
188  DF  HAVING PROTECTING AIR CURRENT
189  DF  .~ Surrounding protected area
190  DF  .~ Including plural, layered currents
191  DF  .~ Including suction outlet
192  DF  .~ Including current adjusting mean
193  DF  .~ Cabinet enclosure (e.g., display case, etc.)
194  DF  BLAST OR SHOCK WAVE PREVENTION
195  DF  MEANS COMBINED WITH DOOR
196  DF  MEANS COMBINED WITH WINDOW
197  DF  .~ For bed or couch
198  DF  .~ Condensation preventer
199  DF  .~ Skylight
200  DF  .~ With air pump
201  DF  .~.~ Cooling air conditioner
202  DF  .~.~.~ Having readily moveable flow control means
203  DF  .~.~.~ With extensible side panel
204  DF  .~.~.~ With mounting or support means
205  DF  .~.~ Recirculation means
206  DF  .~.~ With specific noise inhibiting structure
207  DF  .~.~ With specific filtering means
208  DF  .~.~ Propeller fan having rotary axis perpendicular to window
209  DF  .~.~.~ With mounting means for pump reversal
210  DF  .~.~.~ With extensible side panel
211  DF  .~ Having air passage in sash
212  DF  .~ Having air passage means within, attaching to, or replacing pane
213  DF  .~ Having air passage at window top
214  DF  .~ Having air passage between sill and bottom of sash
215  DF  .~.~ Including wall sloping downward from window
216  DF  .~.~ Including wall for upwardly deflecting inlet air
217  DF  .~.~.~ Having adjustable angle or swingable mounting
218  DF  .~.~.~.~ Including collapsible or flexible, perpendicular side wall
219  DF  .~.~.~ Having readily moveable air regulating means
220  DF  .~.~.~ Having slidably interconnected sections
221  DF  .~.~ Including louvers
222  DF  .~.~ Including readily moveable air regulating means
223  DF  .~.~ With means for liquid contact
224  DF  .~ Having louvers
225  DF  .~ Tilting pane window
226  DF  .~ Having wind deflector
227  DF  .~ Including backdraft preventer
228  DF  HAVING FORCED RECIRCULATION
229  DF  .~ Including automatic control means
230  DF  .~ Forced recirculation alone
231  DF  .~.~ Having recirculating duct connecting upper and lower room air strata
232  DF  .~.~ Having plural or branched recirculation ducts
233  DF  .~.~ For use with heating or cooling means
234  DF  .~ Including unitary housing having both inlet and outlet airways
235  DF  .~.~ Having air pump means for both airways
236  DF  .~ For use with heating and cooling means
237  DF  HAVING BOTH INLET AND OUTLET AIRWAYS
238  DF  .~ Pressure regulation
239  DF  .~ Including automatic control means
240  DF  .~ With wind-operated air pump
241  DF  .~ Including unitary inlet and outlet housing
242  DF  .~.~ Rooftop
243  DF  .~.~ Sleeved vent for ceiling, wall, or floor (e.g., thimble)
244  DF  .~.~.~ With air pump means for both inlet and outlet airways
245  DF  .~.~ Air distributor with return vent (e.g., register, etc.)
246  DF  .~.~.~ Baseboard type
247  DF  .~.~.~ Floor type
248  DF  .~.~.~ Ceiling type
249  DF  .~.~ With air pump
250  DF  .~ Natural ventilation including air passage through rooftop (i.e., no air pump)
251  DF  .~ With air pump means
252  DF  .~.~ For both inlet and outlet airways
253  DF  .~.~ For outlet airway
254  DF  HAVING INLET AIRWAY
255  DF  .~ Pressure regulation
256  DF  .~ Including automatic control means
257  DF  .~.~ Emergency smoke or fire responsive valve
258  DF  .~.~ Air temperature responsive
259  DF  .~ Including backdraft preventer
260  DF  .~ Through roof eaves or rafters
261  DF  .~ Including structure for mixing plural air streams together
262  DF  .~.~ And having specific noise inhibiting structure
263  DF  .~.~ With shaped nozzle
264  DF  .~.~.~ And readily movable air regulating louver, damper, or cover
265  DF  .~.~ With readily movable air regulating louver, damper, or cover
266  DF  .~.~.~ Pivoted
267  DF  .~.~.~.~ Plural
268  DF  .~.~.~.~.~ Including parrallel louver vanes
269  DF  .~.~ With air pump
270  DF  .~ Sleeved vent for ceiling, wall, or floor (e.g., thimble)
271  DF  .~.~ Wall type
272  DF  .~.~.~ With air pump
273  DF  .~.~.~ Having adjustable valve
274  DF  .~.~.~.~ Sliding or axially moveable
275  DF  .~ Including specific cover or shield for exterior vent opening
276  DF  .~.~ Wall type
277  DF  .~.~.~ Louver
278  DF  .~.~.~.~ Having moveable vanes
279  DF  .~.~.~.~ Having serially aligned vane sets
280  DF  .~.~.~.~ Formed in sheet member
281  DF  .~.~.~.~ Having specific vane supporting means
282  DF  .~.~.~.~.~ In between vane ends
283  DF  .~.~.~.~ With screen mounting means
284  DF  .~ Including specific air distributor (e.g., register, etc.)
285  DF  .~.~ Sweeping type
286  DF  .~.~ Having airway joint with ball or cylinder rotatable in a socket
287  DF  .~.~ Baseboard type
288  DF  .~.~.~ Including portion or element movable during normal use
289  DF  .~.~ Floor type
290  DF  .~.~.~ Having adjustable valve
291  DF  .~.~.~ With means for liquid contact
292  DF  .~.~ Ceiling type
293  DF  .~.~.~ With light fixture
294  DF  .~.~.~.~ Air passes over lamp
295  DF  .~.~.~.~ Having adjustable valve
296  DF  .~.~.~ Including perforated or porous element
297  DF  .~.~.~.~ Having portion or element movable during normal use
298  DF  .~.~.~.~.~ Axially movable or sliding valve
299  DF  .~.~.~ Including plural vanes
300  DF  .~.~.~.~ Concentric
301  DF  .~.~.~ Including elongated output slot
302  DF  .~.~.~.~ Single, annular output slot
303  DF  .~.~.~.~ Having portion or element movable during normal use
304  DF  .~.~.~.~.~ Pivoted
305  DF  .~.~ Air nozzle
306  DF  .~.~ Having air duct extending into room
307  DF  .~.~ Having air deflecting wall extending into room
308  DF  .~.~ Having vanes or elongated output slots extending radially
309  DF  .~.~ Louvered air distributor
310  DF  .~.~.~ Concentric
311  DF  .~.~.~.~ Having separate, adjustable internal damper
312  DF  .~.~.~.~ Having adjustable vane
313  DF  .~.~.~ Moveable
314  DF  .~.~.~.~ Aligned mutiple, movable sets of vanes
315  DF  .~.~.~.~.~ Serially arranged sets
316  DF  .~.~.~.~ Repositionable set
317  DF  .~.~.~.~ Rotating disks
318  DF  .~.~.~.~ Louver vanes form valve
319  DF  .~.~.~.~ Plural vanes pivoting about individual axes
320  DF  .~.~.~.~.~ Pivot at leading or trailing vane edge
321  DF  .~.~.~ In housing within room
322  DF  .~.~ With adjustable valve
323  DF  .~.~.~ Axially movable
324  DF  .~.~.~ Sliding
325  DF  .~.~.~ Plural blades pivoting along parrallel axes
326  DF  .~.~.~.~ Adjacent blades pivot in opposing directions
327  DF  .~.~.~ Valve opens by pivoting in upstream direction
328  DF  .~.~ With means for liquid contact
329  DF  .~.~ With air pump
330  DF  .~.~ Having register box, frame, or grating
331  DF  .~.~.~ Including specific grating or grating mounting structure
332  DF  .~.~.~.~ Readily moveable grating
333  DF  .~ With adjustable valve (e.g., damper, etc.)
334  DF  .~.~ Axially movable or sliding
335  DF  .~.~ Plural blades pivoting along parallel axes
336  DF  .~.~.~ Adjacent blades pivot in opposing directions
337  DF  .~ With means for liquid contact
338  DF  .~ With air pump
339  DF  HAVING OUTLET AIRWAY
340  DF  .~ Pressure regulation
341  DF  .~ With air pump
342  DF  .~.~ And having specific emergency smoke handling structure
343  DF  .~.~ Having specific air pump actuator
344  DF  .~.~ Pump induces draft in exit duct
345  DF  .~.~ Having plural suction intakes
346  DF  .~.~ Having vibration absorbing or preventing structure
347  DF  .~.~ Having readily movable air regulating louver,damper, or cover
348  DF  .~.~.~ Continuously horizontal damper panel
349  DF  .~.~.~ Ceiling mounted air pump
350  DF  .~.~.~ Wall mounted air pump
351  DF  .~.~.~.~ Plural damper panel
352  DF  .~.~.~ Plural damper panel
353  DF  .~.~.~ Including backdraft preventer
354  DF  .~.~ Ceiling or wall mounted
355  DF  .~.~ With movable access cover
356  DF  .~.~ Having exterior neck with enlarged, weather resistant cover
357  DF  .~ Having emergency smoke handling feature
358  DF  .~ Having readliy movable air regulating louver, damper, or cover
359  DF  .~.~ Including backdraft preventer
360  DF  .~.~.~ Including counter balancing means
361  DF  .~.~ Internal damper
362  DF  .~.~.~ Continuously horizontal damper panel
363  DF  .~.~.~ Pivoted damper panel
364  DF  .~.~ Along roof ridge
365  DF  .~ Along roof ridge
366  DF  .~ Slant roof ventilator
367  DF  .~ Having specific cover or shield for exterior vent opening
368  DF  .~.~ Exterior neck with enlarged, weather resistant cover
369  DF  FIRE DAMPER
370  DF  MISCELLANEOUS
******************************
CROSS-REFERENCE ART COLLECTIONS
******************************
900  DF  VENTILATOR USING SOLAR POWER
901  DF  FOG DISPELLER
902  DF  AIR RAID SHELTER VENTILATION
903  DF  FLEXIBLE DUCTS USED FOR CARRYING AIR
904  DF  MAGNETIC MEANS TO HOLD A DAMPER CLOSED
905  DF  BLACK OUT MEANS
906  DF  NOISE INHIBITING MEANS
907  DF  SEAT
908  DF  HAVING ROTARY RETARDER
909  DF  RADON PREVENTION