| Patents for H01H 47 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current (7,312) |
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| 08/30/1983 | US4402033 Sensitive relay with high threshold stability |
| 08/24/1983 | EP0086689A1 Energising circuit for a control contact and its application to the control of an off-delay timer of a relay |
| 08/23/1983 | US4400756 Inductive load driver protection circuits having minimal power dissipation |
| 08/16/1983 | US4399483 Solenoid current control |
| 08/09/1983 | US4397368 Driving circuits of solenoid actuated devices |
| 07/20/1983 | EP0083996A2 Electronic switching device with exciting coil |
| 06/21/1983 | CA1148647A1 Electromagnetic relay |
| 06/15/1983 | EP0081374A1 Pulse width modulated control circuit for double solenoid valve |
| 05/24/1983 | US4384716 Flipper control circuit |
| 05/24/1983 | CA1147015A1 Inductive load actuating circuit using higher current levels for pull-in and two alternating lower current levels for hold-in |
| 05/17/1983 | US4384314 Control system for plural transformer relays |
| 04/26/1983 | US4381532 Constant energy drive circuit for electromagnetic print hammers |
| 03/23/1983 | EP0074536A2 Electric commutation apparatus for a control device for a motor-driven vehicle |
| 03/03/1983 | WO1983000771A1 Inductive load driver protection circuits having minimal power dissipation |
| 02/16/1983 | EP0071734A2 Electric-firing mechanism for a launching apparatus |
| 02/09/1983 | EP0070873A1 Driver circuit for use with inductive loads or the like. |
| 01/25/1983 | US4370565 Timed electric switch |
| 01/18/1983 | US4369482 Electromagnetic relay |
| 01/11/1983 | US4368502 Lead-lag load lockout control |
| 01/04/1983 | US4367510 Remote control switch device |
| 01/04/1983 | CA1138803A1 Print hammer drive circuit with compensation for voltage variation |
| 12/29/1982 | EP0067937A2 Multi-chopping drive circuit for an electromagnetic print hammer or the like |
| 12/29/1982 | EP0067936A2 Chopping drive circuit for an electromagnetic print hammer or the like |
| 12/28/1982 | US4366524 Electromechanical transducer controlling device |
| 12/14/1982 | CA1137614A2 Circuit arrangements for the control of a bistable relay |
| 12/07/1982 | CA1137156A1 Motion detecting switch |
| 12/01/1982 | EP0065852A2 Relay circuit and relay therefor |
| 11/23/1982 | US4360856 Electric sensor package |
| 11/23/1982 | CA1136227A1 Coaxial cable switching circuit |
| 11/09/1982 | US4358812 Driver circuit for use with inductive loads or the like |
| 11/09/1982 | CA1135395A1 Circuit arrangements for the control of a bistable relay |
| 10/26/1982 | CA1134490A1 Remote control wiring system |
| 10/19/1982 | US4355292 Control device, particularly for automatic furnaces |
| 09/21/1982 | US4350894 Irradiation apparatus |
| 09/14/1982 | US4349857 Light responsive control device |
| 09/14/1982 | CA1131747A1 Lighting control interface apparatus |
| 09/14/1982 | CA1131715A1 Domestic appliance comprising a protected programming device |
| 09/07/1982 | US4348564 Slide switch |
| 09/07/1982 | CA1131298A1 Control circuits for solenoids |
| 08/31/1982 | US4347548 Electrical relay |
| 08/31/1982 | US4347544 Injector drive circuit |
| 08/31/1982 | US4347444 Automotive backlight heater and timing control means |
| 08/25/1982 | EP0058235A2 Electromagnetic switching device |
| 08/19/1982 | WO1982002794A1 Driver circuit for use with inductive loads or the like |
| 08/10/1982 | US4344102 Anti-telegraph control circuit for electromagnet coil |
| 07/27/1982 | CA1128640A1 Fail-safe time delay circuit |
| 07/06/1982 | US4338650 Fail-safe relay driving |
| 07/06/1982 | US4338649 System for remotely controlling a load |
| 06/24/1982 | WO1982002115A1 Electronic device for the energization of an electromagnetic element |
| 06/23/1982 | EP0054407A1 Load current protection circuit |
| 05/25/1982 | CA1124382A1 Adjustable time delay relay |
| 05/25/1982 | CA1124363A1 Electronic accelerator pump timing control |
| 05/18/1982 | CA1123944A1 Control system using an alternating current contactor and a direct current operated interposing relay |
| 05/05/1982 | EP0050915A1 System for remotely controlling a load |
| 04/28/1982 | EP0050301A1 Driver circuit for a bistable relay |
| 04/20/1982 | US4326234 Electrically held power relay circuit with reduced power dissipation |
| 04/20/1982 | US4326133 Control circuit for alternately actuating a pair of loads |
| 04/20/1982 | CA1122314A1 Fail-safe timing circuit |
| 04/13/1982 | US4325101 Vital electronic time delay circuit |
| 04/13/1982 | CA1121901A1 Undervoltage control apparatus for circuit interrupter |
| 03/24/1982 | EP0047934A2 Multijunction time relay |
| 03/23/1982 | US4321447 Energization circuit for a microwave oven |
| 03/02/1982 | US4318154 Fast relay turn on circuit with low holding current |
| 03/02/1982 | US4318094 Interface device for remote control |
| 03/02/1982 | US4318093 Logic circuit monitor |
| 03/02/1982 | US4318065 Means for actuating electro-magnetic switchgear |
| 03/02/1982 | US4318006 Switching system |
| 02/23/1982 | CA1118880A1 Power switching circuit |
| 02/16/1982 | US4316056 Control circuit for electromagnetically-operated recorders in teleprinting devices |
| 02/02/1982 | US4314307 Electro-mechanical sensor power up circuit |
| 02/02/1982 | CA1117641A1 Circuit arrangement for the control of a bistable relay |
| 02/02/1982 | CA1117640A1 Relay drive and monitor circuit |
| 01/12/1982 | CA1116212A1 Ac-dc magnet coil assembly for low dropout ac contactors |
| 01/06/1982 | EP0042997A2 Circuit arrangement to supply energising current to an electromagnetic relay |
| 12/29/1981 | US4308567 Lighting control interface apparatus |
| 12/08/1981 | US4305021 Switch for controlling the operation of a light source in response to the presence of a moving person or object and in response to the magnitude of ambient light not provided by the light souce |
| 12/01/1981 | US4303867 Domestic appliance comprising a protected programming device |
| 11/17/1981 | US4300508 Installation for operating electromagnetic loads in internal combustion engines |
| 11/10/1981 | CA1112307A1 Timer circuit |
| 10/13/1981 | US4295177 Control circuits for solenoids |
| 10/06/1981 | US4293888 Print hammer drive circuit with compensation for voltage variation |
| 09/22/1981 | US4291360 Remote control wiring system |
| 09/22/1981 | US4291359 Safety circuit for a potentially dangerous machine monitored by light |
| 09/22/1981 | US4291358 Magnetic valve with electronic control |
| 08/11/1981 | US4283748 Circuit arrangement for operating heavy-duty equipment using electrical relaying device |
| 08/11/1981 | CA1106956A2 Timed electric switch |
| 07/21/1981 | US4280160 Arc discharge preventing circuit of transfer switch for use with inductive loads |
| 07/07/1981 | US4277813 Environmental signal switch for motor vehicles |
| 07/07/1981 | CA1104387A1 Circuit for reducing solenoid hold-in power in electronic player pianos & similar keyboard operated instruments |
| 06/30/1981 | US4276483 Timed electric switch |
| 06/24/1981 | EP0030651A1 Electromagnetic switching device |
| 06/16/1981 | US4274122 Energizing and quick deenergizing circuit for electromagnetic contactors or the like |
| 06/02/1981 | US4271450 Circuit arrangements for the control of a bistable relay |
| 06/02/1981 | US4271403 Coaxial cable switching circuit |
| 05/12/1981 | US4267467 Timer circuit |
| 05/05/1981 | US4266261 Method and apparatus for operating an electromagnetic load, especially an injection valve in internal combustion engines |
| 05/05/1981 | CA1100572A1 Solenoid driver circuit |
| 03/24/1981 | US4258404 Fail-safe control circuit, particularly for heating apparatus |
| 03/17/1981 | US4257082 Magnetic flip-flop for hydrophone preamplifier |
| 03/17/1981 | US4257081 Circuit arrangement for the control of a bistable relay |