US PATENT SUBCLASS 335 / 172
.~ Tripping means

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
172.~ Tripping means {2}
173  DF  .~.~> Plural diverse (e.g., manual plus electromagnet)
174  DF  .~.~> Magnetically operated {2}

DEFINITION

Classification: 335/172

(under subclass 2) Subject matter wherein the structure includes significant details of at least one means whereby a latch is released or tripped from a first operative condition to a second nonoperative condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21+, for automatic circuit interrupting devices with significant trip structure.

77, for motor actuated switches with trip structure.

165, for unitary contact actuating and latch or trip means.

166, for switch with latch or trip reset means.

SEE OR SEARCH CLASS 74, Machine Element or Mechanism,

2+, for mechanical trip structure, per se.

200, Electricity: Circuit Makers and Breakers,

39+, for retarded switch structure including trip means, subclasses 411+; 415+ for double snap switches with trip means, subclass 470; 471 for single snap switches with trip means, and subclasses 424+ for reciprocating snap switches with trip means.

337, Electricity: Electrothermally or Thermally Actuated Switches,

47+, 70+, 128+, 150+, and 174+ for electrothermally actuated switches which include trip releases and subclasses 356+ and 411 for thermally actuated switches including trip releases.

361, Electricity: Electrical Systems and Devices,

115+, for specific circuit breaker or relay structure which may include tripping means.