| 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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| 02/17/1981 | US4251848 Electronic accelerator pump timing control |
| 02/17/1981 | CA1096029A1 Control circuit for temporarily and permanently energizing the contacts of a d.c. contactor |
| 02/17/1981 | CA1096028A1 Timed electric switch |
| 02/03/1981 | US4249150 High power RF relay switch |
| 01/21/1981 | EP0022725A1 Electromechanic transducers |
| 01/07/1981 | EP0020975A1 Driving circuit for the supply of a current to a coil and its use in a printing device |
| 12/10/1980 | EP0019890A1 Circuit arrangement for driving electromagnets in recording devices used in the telewriter technique |
| 12/10/1980 | EP0019651A1 Electronic circuit for a relay with a determinable time-rating |
| 11/04/1980 | US4232298 Remotely-controllable relays and filters therefor |
| 11/04/1980 | CA1089074A1 Control for remote control wiring system |
| 11/04/1980 | CA1089054A1 Delay circuit |
| 10/15/1980 | EP0016854A1 Electronic timing circuit |
| 10/14/1980 | US4228483 Sequential control electrical chain comprising assembled coupling connector modules |
| 10/14/1980 | CA1087723A1 Solid state timer for sealed contact relay |
| 10/07/1980 | US4227231 Integral relay low voltage retentive means |
| 10/07/1980 | US4227230 Switch mode driver |
| 09/17/1980 | EP0015324A1 Domestic appliance comprising a protected programming device |
| 09/16/1980 | US4223289 AC-DC Magnet coil assembly for low dropout AC contactors |
| 08/26/1980 | CA1084616A1 Fail-safe time delay circuit |
| 08/12/1980 | CA1083662A1 Solenoid driver circuit |
| 07/22/1980 | US4214290 Control circuit for electromagnetically operated contactor |
| 07/15/1980 | US4213059 Power switching circuit |
| 06/10/1980 | US4207500 Cut-off arrangement for and method of protecting a ballast-starter circuit from high pressure sodium lamp cycling malfunction |
| 05/27/1980 | US4205361 Undervoltage control apparatus for circuit interrupter |
| 05/20/1980 | US4204242 Time delay circuit for timing relays |
| 05/20/1980 | US4204128 Adjustable time delay relay |
| 04/29/1980 | US4200826 Timing circuit for game feeder |
| 04/29/1980 | CA1076689A1 Signal amplitude monitor and relay driver circuit |
| 04/15/1980 | US4198574 Timing control circuit |
| 04/15/1980 | US4198573 Automatic memory and environmental security system |
| 04/02/1980 | EP0009106A1 Circuit arrangement for energizing an electromagnet in a coin-freed telephone station |
| 04/01/1980 | CA1074864A1 Thermoelectric generator overload protective device using hysterisis control |
| 03/11/1980 | CA1073541A1 Liquid level sensing circuit |
| 03/05/1980 | EP0008509A1 Control circuits for solenoids |
| 02/12/1980 | US4188547 Multi-mode control logic circuit for solid state relays |
| 02/06/1980 | EP0007420A1 Safety circuit for a potentially dangerous machine monitored by light |
| 01/29/1980 | US4186420 Accurate, fail-safe relay timer |
| 01/23/1980 | EP0006843A1 Electronically controlled magnetic valve |
| 01/22/1980 | US4185315 Apparatus with a single input connectable to electrical energizing sources of different character |
| 01/22/1980 | CA1070414A1 Press control system |
| 01/01/1980 | CA1069176A Muting control circuit for use with a power amplifier |
| 12/25/1979 | CA1068798A Detecting element for a control device for invalids |
| 12/18/1979 | CA1068392A1 Remote switch control and status indicator system |
| 11/27/1979 | US4176388 Control circuit for a contactor |
| 11/13/1979 | USRE30150 Inductor drive means |
| 11/06/1979 | US4173740 Speaker protection circuit |
| 10/30/1979 | US4172998 Condition operated load control |
| 10/30/1979 | CA1065448A1 Compressor motor protector |
| 10/23/1979 | CA1065042A1 Contactor device including arc suppression means |
| 10/02/1979 | US4169401 Circuit for reducing solenoid hold-in power in electronic player pianos and similar keyboard operated instruments |
| 09/25/1979 | US4169278 Fire-suppressing foam level controller |
| 09/04/1979 | US4167030 Protective circuit for an electronic switching amplifier in series with an electromagnet |
| 07/31/1979 | US4163271 Electronic switching apparatus |
| 06/19/1979 | US4158836 Solid state timer for sealed contact relay |
| 06/19/1979 | US4158383 Apparatus for coupling the components of a heat pump system |
| 06/05/1979 | US4157580 Fail-safe time delay circuit |
| 05/29/1979 | US4156432 Delay circuit |
| 05/01/1979 | CA1053791A1 Vital relay operating circuit |
| 04/18/1979 | EP0001459A1 Improvements relating to time delay switch devices |
| 04/17/1979 | US4150417 Fail-safe timing circuit |
| 03/13/1979 | US4144552 Sequential timing circuitry |
| 01/30/1979 | CA1047597A1 Supply circuitry for electromagnets and electromagnets comprising this circuitry |
| 01/02/1979 | US4133020 Control switch relay and control circuit means |
| 12/26/1978 | CA1045241A1 Fail-safe time-delay circuit for relays |
| 12/12/1978 | US4129893 Thermoelectric generator overload protective device using hysterisis control |
| 11/14/1978 | US4125885 Control apparatus |
| 10/03/1978 | US4118750 Vital relay operating circuit |
| 09/19/1978 | CA1038949A1 Motor protection apparatus and method |
| 09/05/1978 | US4112478 High-temperature detecting apparatus |
| 09/05/1978 | US4112477 Circuit for energizing a fuel injector valve coil |
| 09/05/1978 | US4112313 Timer control arrangement for use with a wall switch |
| 08/15/1978 | US4107588 Multiple timing interval integrated circuit structure |
| 08/08/1978 | US4105367 Liquid level sensing circuit |
| 06/20/1978 | US4096400 Inductive load driving amplifier |
| 06/13/1978 | US4095124 Transformer/switch device |
| 05/23/1978 | US4091438 Press control system |
| 03/28/1978 | US4081855 Current pulse generator |
| 03/14/1978 | US4079267 Modular IC on-delay timer |
| 01/10/1978 | US4068296 Control for remote control wiring system |
| 01/03/1978 | US4067055 High-speed inductance driver |
| 12/27/1977 | US4065805 Circuit arrangement in an electrical device operated with direct-current, especially in a timing relay |
| 11/22/1977 | US4059845 Fail-safe time delay circuit |
| 11/22/1977 | US4059844 Solenoid driver circuit |
| 11/01/1977 | US4056776 Combination of a thyristor connection and a test device |
| 09/27/1977 | US4051547 Solid state relay |
| 09/13/1977 | US4048666 Electric safety switch circuitry |
| 09/13/1977 | US4048596 Light-activated remote control unit |
| 08/09/1977 | US4041546 Solenoid driver circuit |
| 08/02/1977 | US4040119 Programmer for magnetic latching relays |
| 06/28/1977 | US4032823 Supply circuit for electromagnets |
| 06/21/1977 | US4031560 Chopped light relay keyer |
| 06/21/1977 | US4031435 Switching device |
| 06/07/1977 | US4028615 Method of and device for testing hermetically enclosed reed contacts |
| 05/24/1977 | US4025820 Contactor device including arc supression means |
| 05/10/1977 | US4023077 Gating circuit |
| 03/22/1977 | US4013931 Voltmetric system comprising an electromagnetic relay |
| 03/08/1977 | US4011486 Tone operated switching arrangement |
| 01/11/1977 | US4002929 A.C. type timer circuit |
| 12/21/1976 | US3999106 Electrical switch device |
| 11/30/1976 | US3995199 Compressor motor protection |