| Patents for H01H 1 - Contacts (16,507) |
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| 03/06/1990 | US4906291 Method for manufacturing melt materials of copper, chromium, and at least one readily evaporable component using a fusible electrode |
| 03/01/1990 | DE3829250A1 Method for producing a contact material for vacuum switches |
| 02/28/1990 | EP0355606A2 Electric switch device |
| 02/28/1990 | CN2053783U Static contact device for small current auto-switch |
| 02/27/1990 | US4904317 Erosion resistant Ag-SnO2 electrical contact material |
| 02/26/1990 | EP0296183A4 Circuit breaker contact assembly. |
| 02/22/1990 | WO1990001785A1 Switch enclosure |
| 02/22/1990 | WO1990001784A1 Switch enclosure |
| 02/21/1990 | EP0354997A2 Contact forming material for a vacuum interrupter |
| 02/20/1990 | CA1266074A1 Switch bridge arrangement for an electrical switch |
| 02/14/1990 | EP0354424A1 Cylindrical tap selector for step-down transformers having contact rings fixed by connecting wires |
| 02/14/1990 | EP0354423A1 Cylindrical tap selector for step-down transformers having contact rings held in place by connecting wires |
| 02/14/1990 | EP0354414A2 Lock for the door of a lift shaft |
| 02/07/1990 | EP0353948A2 Laminated copper assembly |
| 02/07/1990 | EP0353940A2 Crossbar assembly |
| 02/07/1990 | EP0353369A2 Keyswitch |
| 02/07/1990 | CN2052569U Adjustable floating electrical contact |
| 02/01/1990 | DE3823813A1 Control device for a domestic appliance |
| 01/31/1990 | EP0352341A1 Method for preventing the poor electrical conduction at electrical switch contacts which is caused by silicone vapor |
| 01/31/1990 | CN2052146U Push-button switch with silver-pulp contacts for electronic circuits |
| 01/30/1990 | US4897513 Rotary switch |
| 01/30/1990 | US4897051 Flexible electric component leads |
| 01/30/1990 | CA1265178A1 Circuit breaker having improved stab assembly |
| 01/24/1990 | CN2051772U Double controlled, dual purpose switch for electrical equipments |
| 01/23/1990 | US4896004 Low-profile range control switch |
| 01/17/1990 | CN1038899A Modular switch assembly having wiping contacts |
| 01/16/1990 | US4894571 Apparatus for making electrical connections in a dynamoelectric machine |
| 01/16/1990 | US4894498 For use with radial lead automatic insertion equipment |
| 01/16/1990 | US4894495 Watertight electrical contact units |
| 01/09/1990 | US4893048 Multi-gap switch |
| 01/09/1990 | US4892986 Vacuum circuit breaker |
| 01/03/1990 | EP0349515A2 Composite copper-based material for electric contacts under heavy stress, method of manufacturing this material and electric contacts made therefrom |
| 01/03/1990 | EP0349046A2 Electrical contact structures specifically suited for low power circuits |
| 01/03/1990 | EP0348909A2 On-load electromagnetic relay |
| 01/02/1990 | US4891618 Laminated copper assembly |
| 01/02/1990 | US4891480 Apparatus including electrical contacts |
| 01/02/1990 | US4890467 Switch lock |
| 12/27/1989 | EP0347999A2 Electric switch structure in which the actuation axial force is just a small portion of the contact force |
| 12/20/1989 | CN1038187A Switching device for suppressing starting impact current of transformer |
| 12/14/1989 | DE3911904A1 Powder-metallurgical process for producing a semifinished product for electric contacts from a silver-based composite with iron |
| 12/14/1989 | DE3819458A1 Pressure-controlled electrical switching unit |
| 12/12/1989 | US4887062 Thermal sensor assembly |
| 12/12/1989 | US4887057 Cam roll pin assembly |
| 12/12/1989 | US4886641 Electrical contact spring material made of copper base alloy of high strength and toughness with reduced anisotropy in characteristics |
| 12/12/1989 | US4886462 Circuit breaker printed circuit board connector device |
| 12/07/1989 | DE3910962A1 Switch |
| 12/07/1989 | DE3818070A1 Safety temperature cutout (limiter) |
| 12/06/1989 | EP0344687A2 Electromagnetic relay having monitoring windows |
| 12/06/1989 | CN2049016U Double mode multifunctional switch with pullswitch and press button |
| 12/05/1989 | US4885442 Contact element |
| 12/05/1989 | US4885435 Cantilever spring switch having multiple fulcrums |
| 11/30/1989 | WO1989011725A1 Contact bolt for switches, switching relays and the like |
| 11/30/1989 | DE3901823A1 Vacuum switching tube |
| 11/30/1989 | DE3816904A1 Electrical switching device |
| 11/29/1989 | EP0343663A2 Vacuum interrupter contacts and process for producing the same |
| 11/29/1989 | EP0343274A1 Heavy current circuit breaker particularly for agressive environment such as short-circuiter for electrolysis installations |
| 11/29/1989 | CN2048619U Multi-spot control warping plate switch |
| 11/28/1989 | CA1263217A1 Low contact electrical resistant composition, substrates coated therewith, and process for preparing such |
| 11/23/1989 | EP0342441A2 Temperature sensitive commutation device |
| 11/23/1989 | DE3816107A1 Switching apparatus base |
| 11/22/1989 | CN2048235U Variable-voltage switch of save on electric power |
| 11/21/1989 | US4882461 Subminiature push-button switch |
| 11/16/1989 | DE3814903A1 Switchable electrical connector |
| 11/15/1989 | EP0342085A1 Electric connector and printed circuit comprising such a connector |
| 11/15/1989 | CN2047834U Multigang switch and on-off indicator |
| 11/14/1989 | US4879805 Method for making a circuit interrupter device |
| 11/09/1989 | DE3813142A1 Strip-shaped or sheet-shaped semi-finished product for electrical contacts |
| 11/08/1989 | EP0340535A1 Electrical switching device |
| 11/08/1989 | CN1036991A Semi-finished product for making electric contacts, made of composite material based on silver and tin oxide and powder-metallurgical process of producing semi-finished product |
| 11/02/1989 | WO1989010419A1 Sintered contact material based on silver for use in electrical switchgear, in particular for contact pieces in low-voltageswitches |
| 11/02/1989 | WO1989010417A1 Sintered contact material based on silver for use in power engineering switchgear, in particular for contact pieces in low-voltage switches |
| 11/02/1989 | WO1989007326A3 Telephone junction box and switch therefor |
| 11/02/1989 | EP0339131A2 Electric switch with counteracting electro-dynamic forces |
| 11/02/1989 | EP0192703B1 Nickel-based electrical contact |
| 11/02/1989 | DE3813935A1 Schalter fuer elektronische uhren Switch for electronic watches |
| 11/02/1989 | DE3813310A1 Sinterkontaktwerkstoff auf silberbasis zur verwendung in schaltgeraeten der energietechnik, insbesondere fuer kontaktstuecke in niederspannungsschaltern Sintered contact material on silver base for use in switching devices of the energy technology, especially for kontaktstuecke in low-voltage circuit breakers |
| 10/25/1989 | EP0338401A1 Powder-metallurgical process for the production of a semi-finished product for electrical contacts made from a composite material based on silver and iron |
| 10/25/1989 | CN1036526A Process for manufacturing composite piece and electric contact part with contact piece using the same process |
| 10/24/1989 | US4876420 Continuous flexible electric conductor capable of functioning as an electric switch |
| 10/24/1989 | US4876419 Two-dimensional electric conductor designed to function as an electric switch |
| 10/24/1989 | US4875278 Method of making an electrical switch |
| 10/19/1989 | DE3909384A1 Semi-finished part for electrical contacts comprising a composite material based on silver/tin oxide and a powder metallurgical process for the production thereof |
| 10/17/1989 | US4874911 Electrical reversing switch |
| 10/17/1989 | US4874430 Composite silver base electrical contact material |
| 10/11/1989 | EP0336797A1 Electrical contact switch |
| 10/05/1989 | WO1989009478A1 Semifinished product for electrical contacts, made of a composite material based on silver and tin oxide, and powder metallurgical process for producing it |
| 10/05/1989 | WO1989009477A1 Micromechanical device |
| 10/05/1989 | DE3809597A1 Mikromechanisches stellelement Micromechanical adjusting element |
| 10/04/1989 | EP0335683A2 Electroplated alloy coatings having stable alloy composition |
| 10/03/1989 | US4871889 Arcing contact assembly for a circuit breaker |
| 10/03/1989 | US4871885 Combined push and slide switch assembly |
| 10/03/1989 | US4871330 Electrical connector construction |
| 09/27/1989 | EP0333733A1 Trimmable microminiature force-sensitive switch |
| 09/27/1989 | EP0333717A1 Electromagnetic relay. |
| 09/26/1989 | US4870231 Contact for vacuum interrupter |
| 09/26/1989 | CA1260048A1 Circuit breaker with axial slotted rod arcing contact |
| 09/20/1989 | EP0333600A1 Process for producing a composite work piece, for instance for electric contacts |
| 09/19/1989 | US4868535 Miniaturized thermal contact breaker for printed circuit board |
| 09/19/1989 | US4868352 Electric switch |
| 09/19/1989 | US4867713 Electrical connector |