Patents for H01H 7 - Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts (471) |
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10/27/1999 | CN2346068Y Modulo assembled vertical oil damped circuit breaker |
08/24/1999 | US5942816 Precautionary timer for kitchen range surface elements |
08/04/1999 | CN1224911A Timing closing electric switch |
07/07/1999 | CN1221963A Delay switch able to limit power consumption of electrical appliances |
06/02/1999 | EP0920037A2 Operation-staggered dual switch |
05/19/1999 | CN2319946Y Delayed cut-off protector of computer power source |
05/05/1999 | CN1215905A Delay switch with delay unit |
03/23/1999 | US5886426 Power switch locking device |
03/10/1999 | CN2310384Y Electric switch specially for corridor illumination |
12/16/1998 | CN2300983Y Ac/dc contact with time controller |
10/27/1998 | US5828018 Light switch cover plate with mechanical timer mechanism |
10/06/1998 | US5818710 Intelligent electric socket |
08/19/1998 | CN2288501Y Air delay switch |
05/05/1998 | US5747895 System for temporarily preserving signal-flow around a signal switch |
04/15/1998 | CN2278705Y Quick on-and-off timer for washer |
12/31/1997 | CN2271745Y Energy saving electronic self-turning off switch |
10/07/1997 | US5675227 Device for maneuvering a radiology appliance |
07/01/1997 | US5644112 Electrical switch |
08/21/1996 | EP0727798A1 Thermal contactor with trip delay |
08/21/1996 | EP0727627A1 Refrigerator with mains switch |
07/23/1996 | CA2037119C Varistor assisted circuit breaker |
06/18/1996 | US5528131 Controlled electric power switch and process for switching an electric power circuit |
09/12/1995 | US5449992 Braking circuit for an electric motor |
04/20/1995 | WO1995010441A1 Vehicle steering wheel |
05/19/1994 | DE4334800A1 Car steering wheel - Has groups of switches incorporated into rim of wheel beneath covering material operating relays by infra-red transmission |
05/05/1994 | DE4236687A1 Electricity supply pref. for woodworking machine and suction unit - includes shunted amplifier and delay switch activated by operation of single manual switch on machine for both loads |
04/20/1994 | EP0593322A1 Intelligent electrical socket |
04/06/1994 | EP0590377A2 Braking circuit for an electric motor |
03/31/1994 | DE4332614A1 Manipulation device for diagnostic X=ray appts. - uses detector for command sequence entered via manual operating control to activate electric motor |
03/30/1994 | EP0589785A1 Controlled elektrical power switch and switching method for an electrical power circuit |
12/23/1993 | WO1993026022A1 Seat cushion switch with delay circuit |
12/15/1993 | CN1023161C Flexible flat cable for connecting head of automatic reverse type recorder |
12/01/1993 | CN1022959C Line circuit breaker with changeable risistor auxiliary break |
11/24/1993 | CN2147625Y Cable for oil well energy-exchanger |
09/08/1993 | CN2141678Y Multifunctional timer for electric rice pot |
04/21/1993 | EP0537700A1 Electrical switching device, in particular rocker switch for household appliances |
04/21/1993 | CN2130285Y Delayed automatic cut-out switch |
04/13/1993 | US5202585 Electronic device including improved connection device |
01/28/1993 | DE4214884A1 Time-delay device esp. for control signal current - has movable porous chlorine body solidified by distillation and impregnated with alloy powder |
12/08/1992 | US5170023 Circuit breaker with varistor-assisted interruption |
10/07/1992 | EP0507538A2 Electrical actuator with means for preventing dither at a limit switch |
08/05/1992 | CN2112197U Push button-type automatic cut-off switch |
06/17/1992 | CN2107707U Automatic turn off switch for lamp |
06/10/1992 | CN2107058U Air damped delay-action circuit breaker |
06/09/1992 | US5120980 Seat cushion switch with delay circuit |
04/15/1992 | CN2101938U Pneumatic timer electric switch |
03/25/1992 | CN1016022B Pull switch with automatic delay function |
03/17/1992 | US5097113 Touch switch arrangement for a heating cooking appliance |
01/14/1992 | US5081405 Electrical actuator with means for preventing dither at a limit switch |
01/02/1992 | DE4020294A1 Electrical switch for computer or HI=FI system - provides time delays between outputs by clock-driven shift register |
11/20/1991 | CN2089205U Wall air drag delay button switch |
11/06/1991 | CN2088285U Air pressure delay-action circuit breaker |
10/16/1991 | CN1055443A Line circuit breaker with changeble resistor auxiliary break |
10/09/1991 | CN2086454U Dual-functional delay saving switch |
09/25/1991 | CN2085556U Delay switch |
09/04/1991 | EP0444568A1 Circuit breaker assisted by varistor |
08/07/1991 | CN2082455U Mechanism type timer |
08/07/1991 | CN2082454U Bimetallic delay switch |
07/17/1991 | CN2080835U Temp-regulating timer switch for electrothermic blanket |
07/03/1991 | CN2080220U Power saving pull switch of delay switch |
02/27/1991 | CN2072269U Delay turn-off switch for lighting |
12/19/1990 | CN2067857U Power-saving delay switch |
12/12/1990 | CN2067453U Time-delay and -non-delay dual-purpose mains switch |
11/07/1990 | CN2065356U New-type delay-action switch for electric lamp |
10/10/1990 | CN1046065A Pull switch with automatic delay function |
10/10/1990 | CN1046064A Switch with the function of automatic delay cut off |
09/19/1990 | CN2062484U Electric delay controller |
08/29/1990 | CN2061328U Time-delay selection automatic switch |
08/14/1990 | US4948927 Visco-elastic delayed actuator and system |
07/04/1990 | CN2059019U Energy-saving manual switch |
06/13/1990 | CN1043033A Flexible flat cable for connecting head of automatic reverse type tape recorder |
04/18/1990 | CN2056275U Mechanical timing contactor |
04/11/1990 | CN2055920U Electricity-saving protector for refrigerator |
03/21/1990 | CN2054937U Dual purpose delay-action and non-delay-action circuit breaker |
03/14/1990 | CN2054564U Automatic delay electricity-saving switch |
03/07/1990 | CN2054194U Flexible flat cable for automatic returning magnetic head |
02/21/1990 | CN2053378U Rotary timing controller |
02/21/1990 | CN2053373U Switch for elongating service life of illuminating, delaying and saving energy |
02/14/1990 | CN2052939U 延时开关 Delay switch |
01/31/1990 | CN2052144U Power-saving gas-control timing switch |
01/17/1990 | CN2051390U Oil control time-delay electricity-saving switch |
11/15/1989 | CN2047835U timing lighting switch |
11/08/1989 | CN2047354U Refrigerator power-failure protector |
11/08/1989 | CN2047353U 电冰箱保护器 Fridge protection |
10/26/1989 | DE3900944A1 Switching device which switches in a time-dependent manner |
10/11/1989 | CN2045893U Automatic delayed electricity-stoped switch |
09/13/1989 | CN2044369U Short timed power switch |
09/13/1989 | CN2044367U Time delay controller |
07/05/1989 | CN2040619U Electricity saving protector for refrigerator |
06/14/1989 | CN2039452U Delay-action push-button switch |
05/10/1989 | CN2037498U Automatic lockout switch |
04/19/1989 | CN2036310U Electricity saving delay switch |
04/12/1989 | CN2035916U Automatic delay and disconnection button |
04/12/1989 | CN2035915U Mechanical timing switch |
04/04/1989 | CA1252141A1 Delay switch |
01/18/1989 | CN2031160U Pneumatic power-saving switch |
01/11/1989 | CN2030754U Self-off switch |
12/27/1988 | US4794213 Delayed action switch actuator |
12/14/1988 | CN87212159U Multifunction simple controller |
12/13/1988 | US4791251 Delayed actuator with visco-elastic timer |