US PATENT CLASS 192
Class Notes


Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL



DEFINITION

Classification: 192/

This class includes clutches, combinations including vortex flow drive and clutch, vortex flow drive and brake, clutch and brake, and clutch and gear; and also includes mechanism for joint control of transmission and clutch, and transmission and brake.

This class includes the control of those various power-transmission means, motors, and brakes the motions of which occur at the completion of a cycle of operations or which are due to contact with the material handled by the machine or to the defective action of the parts of the machine operated or to such operations as arise from the initiation of measures for the safety of the operator.

This class is also the generic locus for clutches and brakes (see below for subclass references).

SEE OR SEARCH THIS CLASS, SUBCLASS:

21.5, 107+, for both clutches and brakes of the subject matter herein classified.

REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclasses, especially 640+ for clutches or brakes and clutches used to modify or control a gearing organization, where specific gearing structure is claimed.

180, Motor Vehicles, 6.2+, for various clutch and brake arrangements providing for steering by driving, where some specific steering by driving vehicle structure is claimed.

188, Brakes, appropriate subclasses for motor vehicle mounted brakes used in association with clutches, where the clutch is not claimed.

234, Selective Cutting (e.g., Punching), appropriate subclasses, for the starting and stopping of a selective cutting machine in response to various predetermined conditions; especially

21, for means to stop after a given number of operations, and subclass 51 for unicyclic or nonrepeat drive means.

242, Winding, Tensioning, or Guiding,

257+, for a clutch in a fishing reel, subclasses 264+ for a releasable coupling in a fishing reel, subclass 356.6 for a one-way clutch in the drive of a winder of an information

bearing carrier, subclasses 394+ for a clutch in a reeling device of general use, subclasses 484.6+ for a helical winding machine drive which may include a clutch, and subclasses 545+ for a clutch in the drive on a convolute winding machine in which particular winding or unwinding structure is specified.

399, Electrophotography,

210, for damping or braking a slit exposure scanning carriage.

418, Rotary Expansible Chamber Devices,

69, for rotary expansible chamber devices combined with a nominally claimed clutch device.

475, Planetary Gear Transmission Systems or Components, appropriate subclasses, for clutches or brakes and clutches used to modify or control a planetary gearing organization. 477, Interrelated Power Delivery Controls, Including Engine Control, for interrelated control between an engine and a transmission, clutch, or brake.