US PATENT SUBCLASS 335 / 74
.~.~.~ Including brake, clutch or detent

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
68  DF  .~ With motor {4}
71  DF  .~.~ Contact actuating structure {4}
74.~.~.~ Including brake, clutch or detent {1}
75  DF  .~.~.~.~> Magnetically actuated

DEFINITION

Classification: 335/74

(under subclass 71) Subject matter wherein the contact actuating structure includes braking, clutch or detent means between the driving motor and the driven movable contact or contacts whereby the speed of the opening or closing operation, the interval during which the driving and the driven means are connected or the degree of contact pressure may be controlled or whereby the device may be independently manually controlled.

SEE OR SEARCH CLASS

188, Brakes, appropriate subclasses for mechanical brake structures and operating means therefor.

192, Clutches and Power-Stop Control, appropriate subclasses for clutches, motor and clutch control and power stop controls.

200, Electricity: Circuit Makers and Breakers,

180, for telephone type selector switches with clutch controlled rotary motion. 307, Electrical Transmission or Interconnection Systems,

142, for switching systems including switch actuating structure with braking means.

310, Electrical Generator or Motor Structure,

92+, for torque transmitting clutches or brakes.