Patents
Patents for H01H 77 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting (1,434)
06/1979
06/19/1979US4158827 Current limiting contactor
03/1979
03/27/1979US4146855 Low profile multi-pole circuit breaker having multiple toggle springs
03/22/1979WO1979000127A1 Defect current protection switch,reacting to double biased direct defect currents
03/13/1979US4144513 Anti-rebound latch for current limiting switches
01/1979
01/02/1979US4132968 Current limiting circuit breaker with improved magnetic drive device
12/1978
12/05/1978CA1043840A1 Current limiting circuit breaker
11/1978
11/21/1978US4126841 Overcurrent switch
10/1978
10/17/1978CA1040691A1 Circuit interrupter
10/03/1978US4118681 High-speed current-limiting device having a contact reclosing retarding member
08/1978
08/15/1978CA1036644A1 Circuit-interrupter
05/1978
05/02/1978US4087769 Torsion spring for contact pressure
02/1978
02/28/1978US4077026 Integral motor controller
02/28/1978US4077025 Current limiting circuit interrupter
01/1978
01/31/1978US4071836 Current limiting circuit breaker
01/24/1978US4070641 Current limiting circuit breaker
11/1977
11/01/1977US4056798 Current limiting circuit breaker
08/1977
08/16/1977US4042895 Combination motor-starter and circuit breaker
08/02/1977US4039983 High-speed high-current circuit interrupter having electrodynamically operated arcing contacts
06/1977
06/21/1977US4031492 Triple break current limiter
05/1977
05/17/1977US4023885 Electrical terminal
03/1977
03/22/1977US4013984 Current limiting circuit breaker
01/1977
01/04/1977US4001738 Circuit interrupter having an electromagnetic repulsion device
11/1976
11/09/1976US3991391 Circuit interrupter with electromagnetic opening means
10/1976
10/19/1976US3987382 Unitized motor starter
09/1976
09/07/1976US3979675 Circuit interrupter
05/1976
05/25/1976US3959753 Circuit interrupter with load side short circuit
05/11/1976US3956723 Current limiting circuit breaker
04/1976
04/27/1976US3953811 Current-limiting electric switch exempt from bumps in the opening stage
03/1976
03/23/1976US3946346 Current limiting circuit breaker
03/16/1976US3944953 Current limiting circuit breaker
03/09/1976US3943473 Current limiting circuit breaker
03/09/1976US3943472 Current limiting circuit breaker
03/09/1976US3943316 Current limiting circuit breaker
01/1976
01/27/1976US3935409 Current-limiting circuit breaker
1 ... 5 6 7 8 9 10 11 12 13 14 15