US PATENT SUBCLASS 335 / 168
.~.~ With positive lock (against movement)


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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
167  DF  .~ Latching means {4}
168.~.~ With positive lock (against movement)


DEFINITION

Classification: 335/168

(under subclass 167) Subject matter wherein the structure includes means whereby the latching mechanism is positively locked or prevented from actuation from a first condition to a second condition while the locking means is operative.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34, for automatic circuit interrupter with lockout.

77, for motor actuated switch with locking means.

113, for multiple contact automatic telephone type switches with holding or locking means.

157, for significant locking structure peculiarly adapted for preventing the operation of the main contacts inadvertently be external means. 233, for polarized electromagnet and plural armatures with locking means.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

44+, for switches with locking means to prevent unauthorized use.

307, Electrical Transmission or Interconnection Systems,

142, for electromagnetic switch actuators with locking, holding or braking means.

361, Electricity: Electrical Systems and Devices,

78+, for safety and protective devices with voltage responsive restraining means.