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| Number | Title | Issue Date |
| 6797909 | High-voltage loadbreak switch with enhanced arc suppression A high-voltage loadbreak switch operates submersed in a dielectric fluid and may be configured to switch one or more phases of power using one or more phase switches. Each phase switch may include first and second stationary contacts. The first stationary contact ma... | 09/28/2004 |
| 5216574 | Component for a metal-clad station for section switching and grounding A switching component for a metal-clad station provides the equivalent of three three-phase section switches respectively disposed on two outlets powering sets of three-phase busbars and allowing grounding of the section switches upstream therefrom. The s... | 06/01/1993 |
| 4746885 | Electromagnetic apparatus combined a pair of contactors into one unit An electromagnetic apparatus combined a pair of contactors into one unit is provided with an interlocking mechanism for ensuring the alternative operations between the contactors, the interlocking mechanism including a pair of interlock levers each of whi... | 05/24/1988 |
| 4683353 | Rotary switch for inductively driven rail gun systems An electrical switch for switching direct current in an inductively driven electromagnetic projectile launching system is provided with a rotor having a generally cylindrical conductive element with a first portion that includes a continuously conductive ... | 07/28/1987 |
| 4651024 | Electromagnetically actuated high DC current switch A high DC current switch includes a pair of annular, conductive rails with a pair of brushes mounted for rotary movement therebetween. DC current is conducted by the rails to and from the brushes in directions to electromotively accelerate the brushes int... | 03/17/1987 |
| 4528433 | Electrically operated switch having an improved linkage means There is provided in this invention an oil-filled electrical switch having a unique linkage and toggle mechanism that prevents the assembly from having a dead center position. There is also provided a stationary contact support structure upon which a rota... | 07/09/1985 |
| 4516100 | Mechanical interlock for vertically mounted circuit breakers A mechanical interlock for a pair of vertically mounted circuit breakers, each circuit breaker having a trip latch mechanism for opening the circuit breaker and a mechanical contact position indicator for indicating the open or closed position of the circ... | 05/07/1985 |
| 4061896 | Modular vault-type load break switch A modular vault type load break switch wherein the switching assembly is carried within an oil filled vault such that the operation of the switching mechanism is independent of the vault structure. The switching contact mechanism employs a positive actuat... | 12/06/1977 |
| 3953695 | Heavy current switch A heavy current switch comprising two stationary contacts, each consisting of two parts which form, upon being joined together, inter-contact spaces between which there is a movable contact system with two groups of contact rollers which either close or b... | 04/27/1976 |
