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Class Information
Number: 335/46
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Electromagnetically actuated switches > Automatic circuit-interrupting devices (e.g., circuit-protective devices) > With contact rebound or other undesirable motion prevention means
Description: Subject matter wherein the interrupting device includes significant structure whereby (1) rebound of the contacts upon opening or closing (2) any undesirable actuation of the contacts from one condition to another, either in response to abnormal circuit conditions or by jar or shock, is prevented, or (3) whereby the operating mechanism may be positively locked against undesirable circuit opening and/or closing movement.

Patents under this class:

Patent Number Title Of Patent Date Issued
8456261 Electromagnetic switch Jun. 4, 2013
7978032 Locking mechanism for protecting a ground fault circuit interrupter from faulty resetting Jul. 12, 2011
7777601 Circuit breaker Aug. 17, 2010
7646270 Electrical switching apparatus, and yoke assembly and spring assembly therefor Jan. 12, 2010
7474179 Electrical switching apparatus, and movable contact assembly and contact spring assembly therefor Jan. 6, 2009
7202427 Switch contact arrangement comprising a device for increasing a contact-force acting between switch contacts Apr. 10, 2007
6917267 Non-conductive barrier for separating a circuit breaker trip spring and cradle Jul. 12, 2005
6774750 Circuit breaker Aug. 10, 2004
6639168 Energy absorbing contact arm stop Oct. 28, 2003
6590172 Circuit breaker mechanism for a rotary contact system Jul. 8, 2003
6486758 Shock-resistant circuit breaker with inertia lock Nov. 26, 2002
6246021 Switching device Jun. 12, 2001
5805038 Shock absorber for circuit breaker Sep. 8, 1998
5793270 Circuit breaker with latch preventing rebound of blow open contact arm Aug. 11, 1998
5192841 Circuit breaker with shock absorbing mechanism Mar. 9, 1993
5089795 Compact molded case circuit breaker with movable contact arm rebound cushion Feb. 18, 1992
5025236 Circuit breaker Jun. 18, 1991
4891617 Rubber stops in outside poles Jan. 2, 1990
4799037 Circuit interrupter Jan. 17, 1989
4794357 Multi-pole circuit interrupter Dec. 27, 1988
4698470 Multiple-impact shock-absorbing assembly for circuit interrupter and other apparatus Oct. 6, 1987
4692728 Self-aligning spring mechanism for an electrical switch Sep. 8, 1987
4626811 Circuit interrupter with integral resilient stop means for contact arm Dec. 2, 1986
4616199 Circuit breaker improvement to prevent setting of trip assembly Oct. 7, 1986
4611187 Circuit breaker contact arm latch mechanism for eliminating contact bounce Sep. 9, 1986
4424501 Electromagnetic contactor having improved contact structure Jan. 3, 1984
4409573 Electromagnetically actuated anti-rebound latch Oct. 11, 1983
4267419 Circuit breaker structure with shock absorbers May. 12, 1981
4152683 Test means for circuit breaker automatic trip mechanism May. 1, 1979
4144513 Anti-rebound latch for current limiting switches Mar. 13, 1979
4135135 Resilient anti-rebound latch for circuit breaker contacts Jan. 16, 1979
4063204 Energy absorbing and pressure applying arrangement for electrical contacts Dec. 13, 1977

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