H01H 87 - Protective devices in which a current flowing through a liquid or solid is interrupted by the evaporation of the liquid or by the melting and evaporation of the solid when the current becomes excessive, the circuit continuity being reestablished on cooling

Patents for H01H 87 - Protective devices in which a current flowing through a liquid or solid is interrupted by the evaporation of the liquid or by the melting and evaporation of the solid when the current becomes excessive, the circuit continuity being reestablished on cooling (149)
09/2000
09/14/2000	WO2000054298A1 Self-recovering current limiting device having liquid metal
09/07/2000	DE19909559C1 Liquid metal-containing self-recovering current limiter including partition walls with connection channels formed by opposed conical opening pairs, for overload and short-circuit protection
09/07/2000	DE19853577C1 Selbsterholende Strombegrenzungseinrichtung mit Flüssigmetall Self-recovering current-limiting device with liquid metal
08/2000
08/24/2000	DE19905372C1 Selbsterholende Strombegrenzungseinrichtung mit Flüssigmetall Self-recovering current-limiting device with liquid metal
08/17/2000	WO2000048216A1 Self-regenerating current limiting device with liquid metal
08/10/2000	WO2000046829A1 Self-recovering current-limiting device with liquid metal
08/10/2000	WO2000046828A1 Self-recovering current-limiting device with liquid metal
08/10/2000	DE19903939A1 Selbsterholende Strombegrenzungseinrichtung mit Flüssigmetall Self-recovering current-limiting device with liquid metal
08/10/2000	DE19903837A1 Self-recovering liquid metal short-circuit current limiter, uses magnetic effects to lengthen arc arising under fault conditions, and to exploit pinch effect, improving current limiting factor
08/10/2000	DE19903776A1 Self-recovering current limiter for electrical circuit, has liquid metal alloy with non-conducting liquid above, such that progressive heating due to short circuit causes flashing into vapors, rapidly establishing current-limiting arc
08/09/2000	EP1026720A1 Self restoring current limiting device with liquid metal
07/2000
07/27/2000	DE19859095A1 Liquid metal-containing self-recovering current limiter has structured internal electrode faces for increased surface area wetted by liquid metal
06/2000
06/02/2000	WO2000031768A1 Self-recovering current-limiting device with liquid metal
05/2000
05/25/2000	DE19909558C1 Self-recovering current limiter with liquid metal has insulating bodies and intermediate walls forming upper, lower shells sealed together along surfaces at connecting channel central plane
05/03/2000	CN1251941A Temp safety device and its making method
02/2000
02/24/2000	DE19853580C1 Self restoring current limiting unit with liquid metal comprises intermediate walls with only their bushes in the zone of the connector channels made of a costly high temperature and fire resistant insulating material
12/1999
12/29/1999	EP0967622A2 A conductive ceramic-metal composite body exhibiting positive temperature coefficient behaviour
10/1999
10/05/1999	US5963121 Resettable fuse
07/1999
07/07/1999	CN2328095Y Temperature fuse
03/1999
03/02/1999	US5877467 Circuit breaker current limiting arc runner
03/1997
03/26/1997	CN1146088A Current limiting device
03/25/1997	US5614881 Current limiting device
03/12/1997	EP0762439A2 Current limiting device
02/1995
02/16/1995	DE4327357A1 Contact arrangement
03/1991
03/28/1991	DE4012385A1 Current-controlled circuit interrupter
12/1990
12/26/1990	CN1011007B Alkali metal switch device
03/1990
03/14/1990	CN2054569U Liquid automatic limit unit for mains supply overload
12/1989
12/26/1989	US4890186 Fault current limiting device
10/1989
10/11/1989	CN1036293A Multifunctional fully automatic safety device
07/1988
07/26/1988	US4759998 Alkali metal switch device
11/1987
11/18/1987	CN87102177A Alkali metal switch device
09/1987
09/09/1987	EP0235973A1 Alkali metal switch device
11/1986
11/11/1986	US4622533 Self-recovery type current limiting element
10/1985
10/30/1985	EP0159701A2 Self-recovery type current limiting element
07/1985
07/10/1985	EP0147509A2 High-speed current limiting circuit breaker
01/1984
01/31/1984	US4429295 Variable impedance current limiting device
03/1983
03/16/1983	EP0074186A1 Current limiting device
06/1981
06/09/1981	US4272750 Power breaker apparatus
11/1980
11/25/1980	US4236186 Power breaker system
11/11/1980	CA1089518A1 Thermally actuated electrical switch
08/1980
08/05/1980	US4216456 Current limiting apparatus
12/1979
12/25/1979	CA1068774A Electric circuit protector comprising parallel-connected liquid-metal current-limiting devices
03/1979
03/20/1979	US4145654 Thermal switch
01/1979
01/09/1979	CA1046114A1 Vapor-state current limiting circuit breaker
10/1978
10/31/1978	CA1041598A1 Fault-current limiter for high power electrical transmission systems
05/1977
05/17/1977	US4024488 Self-restoring type current limiting device
11/1976
11/09/1976	US3991396 Electric circuit protector comprising parallel-connected liquid-metal current-limiting devices
10/1976
10/19/1976	US3987388 Current limiting device
05/1976
05/18/1976	US3957329 Fault-current limiter for high power electrical transmission systems

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