| Patents for H01H 9 - Details of switching devices, not covered by groups (32,796) |
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| 06/05/1979 | US4157461 Automatic transfer switch and bypass switch arrangement |
| 05/29/1979 | US4156885 Automatic current overload protection circuit for electrostatic precipitator power supplies |
| 05/29/1979 | US4156820 Miniature contactless switching unit |
| 05/22/1979 | US4155972 Multiple-shot method of molding plastic products |
| 05/15/1979 | US4154992 Ignition key and headlight switch engaging device |
| 05/08/1979 | US4153922 Relay control circuit |
| 05/08/1979 | US4153827 Magnetic blow-out arc extinguishing device |
| 05/08/1979 | US4153492 Method of forming a dry well fuseholder |
| 05/01/1979 | US4152634 Power contactor and control circuit |
| 05/01/1979 | US4152563 Push-button reversing switch |
| 05/01/1979 | US4152556 Noise suppression pushbutton interlocked switch assembly |
| 05/01/1979 | CA1053792A1 Automatic transfer switch |
| 04/24/1979 | CA1053303A1 Cover for disconnect switch |
| 04/24/1979 | CA1053301A1 Circuit breaker arc chute having components of refractory inorganic material with surfaces of an amorphous fused material, a major proportion of which is silica, and method for making same |
| 04/18/1979 | EP0001387A1 Tap changer with a screening electrode |
| 04/17/1979 | CA1052841A1 Interlock mechanism for externally controlled circuit breakers |
| 04/10/1979 | US4149216 Fused unitized combination starter |
| 04/10/1979 | US4149047 Contactor having interlock for movable contact carrier |
| 04/10/1979 | CA1052424A1 High voltage contactor with modular type housing |
| 04/03/1979 | US4148085 Interconnection circuit-breaker and electric power installation employing same |
| 03/20/1979 | CA1051070A1 Low-voltage circuit-breaker having small contact separation and small gap between cooperating parallel-arranged arcing-rails |
| 03/20/1979 | CA1051069A2 Current limiting circuit breaker |
| 03/13/1979 | US4144513 Anti-rebound latch for current limiting switches |
| 03/13/1979 | US4144419 Push-button actuated slide switch |
| 03/13/1979 | US4143936 Electrical contact |
| 03/13/1979 | CA1050650A1 Electric switch |
| 03/07/1979 | EP0000906A1 Adapter for an electrical component |
| 03/06/1979 | US4143256 Arc chute having plates coated with weld deterent material |
| 03/06/1979 | US4143254 Waterproof multiple electrical switch assembly |
| 02/13/1979 | US4139830 Electromagnetic switching apparatus including improved means for mechanically latching a contact bridge carrier |
| 02/13/1979 | US4138899 Gear and boss protector |
| 02/13/1979 | CA1048578A2 Current limiting circuit breaker |
| 01/30/1979 | US4137559 Socket assembly |
| 01/30/1979 | US4137490 Trigger speed control switch |
| 01/30/1979 | US4137437 Circuit breaker having improved movable crossbar and spring holder |
| 01/30/1979 | US4137433 Bolted pressure switch with side operator mechanism and door assembly interlock |
| 01/30/1979 | CA1047584A1 Locking member for hand-held trigger actuated switch |
| 01/23/1979 | CA1047081A1 Arc chute assembly |
| 01/16/1979 | US4135171 Cement mixer with switch harness |
| 01/16/1979 | US4135073 Device for indicating switch operation by variable illuminating light |
| 01/16/1979 | US4135072 Circuit breaker having opening spring position indicator |
| 01/09/1979 | US4133971 Hand grip mounted switch and strain relief |
| 01/09/1979 | CA1046116A1 Molded case circuit breaker with electro-magnetic shielding improving interrupting capacity |
| 01/09/1979 | CA1046114A1 Vapor-state current limiting circuit breaker |
| 01/02/1979 | US4132933 Electromechanical chopper for speed control of battery powered devices |
| 01/02/1979 | US4132909 Zero axis crossing detector |
| 01/02/1979 | US4132877 Removable keyboard switch |
| 12/26/1978 | US4131777 Pushbutton electrical switches and pushbuttons therefor |
| 12/26/1978 | US4131033 Push-pull and rotating knob |
| 12/12/1978 | USRE29860 Rotary potentiometer with speed reduction gearing |
| 12/12/1978 | US4129766 Indicating mechanism for push button switches |
| 12/12/1978 | CA1044287A1 Fusible electric control device |
| 12/05/1978 | US4128826 Electrical high-voltage apparatus |
| 12/05/1978 | CA1043840A1 Current limiting circuit breaker |
| 11/21/1978 | US4126774 Electrically illuminated push-buttons and indicators |
| 11/14/1978 | US4125750 High voltage electrical switch |
| 10/31/1978 | CA1041649A1 Automatic transfer switch |
| 10/31/1978 | CA1041603A1 High voltage current-limiting interrupter |
| 10/31/1978 | CA1041598A1 Fault-current limiter for high power electrical transmission systems |
| 10/24/1978 | US4122320 Hand-operated double-acting trigger switch |
| 10/10/1978 | US4119823 Electrical switch |
| 10/10/1978 | CA1040243A1 Enclosed circuit interrupter with door mounted control handle mechanism |
| 10/03/1978 | US4118681 High-speed current-limiting device having a contact reclosing retarding member |
| 10/03/1978 | US4118615 Hand-actuated, multiple-function switch unit, particularly for electrical hand tolls, appliances and the like |
| 10/03/1978 | US4118614 Multiple-function, hand-actuated switch unit, particularly for electrical hand tools or appliances and the like |
| 10/03/1978 | US4118607 Interlock means for switch enclosure |
| 10/03/1978 | CA1039808A1 High energy gas discharge switching device |
| 09/26/1978 | US4117294 Safety arrangement for microwave ovens |
| 09/26/1978 | US4117258 Modular electric light switch assembly |
| 09/19/1978 | US4115677 Induction heating apparatus |
| 09/19/1978 | US4114946 Medical treatment chair |
| 09/12/1978 | US4114008 Relay seal cap |
| 09/12/1978 | US4114001 Electrical switch having interlock between door and switch |
| 09/05/1978 | US4112275 Contact structure for electrical switching apparatus |
| 09/05/1978 | US4112274 Electrical control |
| 09/05/1978 | CA1038074A1 Dry well fuse holder |
| 08/29/1978 | US4110720 Thermostatic control |
| 08/29/1978 | US4110585 Grounded lever toggle switch |
| 08/29/1978 | US4110574 Sub-miniature, two position double pole switch |
| 08/29/1978 | US4109958 Medical treatment chair |
| 08/29/1978 | CA1037586A1 Brake fluid level sensing system |
| 08/29/1978 | CA1037530A1 Trigger lock for a motor control switch of a powertool |
| 08/29/1978 | CA1037299A1 Safety switch for drill press using chuck key |
| 08/22/1978 | US4109126 Conductive coating on switch lever seal for rfi elimination |
| 08/15/1978 | US4107637 No-load tap changer for three-phase transformers |
| 08/15/1978 | US4107497 Arc chute assembly |
| 08/15/1978 | US4107492 Pneumatic operated switch having movable flag, switch actuator mounted thereon, and switch in chamber displaced from measured flow path |
| 08/15/1978 | US4107488 Platform mounted switch operating mechanism |
| 08/15/1978 | CA1036703A1 Excess current switching device |
| 08/08/1978 | US4105885 Hand operated instruments having non-magnetic safety switch |
| 08/08/1978 | US4105883 Electric switch having a frame with improved snap-in base retention means |
| 08/08/1978 | US4105882 Control station switch |
| 08/08/1978 | US4105881 Circuit breaker apparatus with static pressure lock |
| 08/08/1978 | US4104981 Indicator using changeable path through transparent material |
| 08/01/1978 | US4104620 Dual filament current limiting and status indicating circuit |
| 08/01/1978 | US4104606 Dimmer switch with insulation housing |
| 08/01/1978 | US4104491 Latch means for switch enclosure |
| 07/25/1978 | US4103136 Switch housing with cable seal |
| 07/25/1978 | US4102471 Switch guard assembly |
| 07/18/1978 | US4101746 Apparatus for controlling the drive for hydraulically actuated high-voltage power circuit breakers |