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Class Information
Number: 335/169
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Electromagnetically actuated switches > Latching means > Plural or with auxiliary latch
Description: Subject matter wherein the latch structure comprises at least two separate cooperative latching devices each under the influence of a separate actuating means. One of the latching devices may constitute the principle latch while at least one other constitutes an auxiliary latch whose function is to restrain the principle latch.

Patents under this class:

Patent Number Title Of Patent Date Issued
8253517 Full-protection circuit breaker Aug. 28, 2012
8143980 Switching device Mar. 27, 2012
7660083 Electromechanical and solid-state AC relay with reduced arcing Feb. 9, 2010
7488913 Mountable circuit breaker Feb. 10, 2009
7268654 Circuit breaker latching mechanism Sep. 11, 2007
5757254 Earth leakage breaker May. 26, 1998
4913503 Molded case circuit breaker actuator-accessory unit reset mechanism Apr. 3, 1990
4771255 Solenoid with a mechanical locking linkage Sep. 13, 1988
4736174 Molded case circuit breaker operating mechanism Apr. 5, 1988
4679018 Circuit breaker with shock resistant latch trip mechanism Jul. 7, 1987
4679019 Trip actuator for molded case circuit breakers Jul. 7, 1987
4620173 Latching magnetic actuator Oct. 28, 1986
4550300 Latch release mechanism for molded case electric circuit breakers Oct. 29, 1985
4490702 Detachable device for locking a contactor in its "on" position Dec. 25, 1984
4408111 Internal locking arrangement for a switch machine Oct. 4, 1983
4368444 Low-voltage protective circuit breaker with locking lever Jan. 11, 1983
4344054 Latch assembly for static trip circuit breakers Aug. 10, 1982
4302740 Circuit breaker mechanism Nov. 24, 1981
4250477 Mechanical latch apparatus Feb. 10, 1981
4238750 Mechanical trip device for a circuit breaker Dec. 9, 1980
4024482 Circuit breaker May. 17, 1977
4001739 Circuit breaker with bell alarm and breaker lockout accessory Jan. 4, 1977
3997861 Interlock circuit override relay Dec. 14, 1976
3943475 Latch relay with electrical reset Mar. 9, 1976

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Keyword search automatic limiting method