Normal open low voltage vacuum shorting switch

Details Normal open low voltage vacuum shorting switch Normal open low voltage vacuum shorting switch

H - Electricity

01

H

306/215

H01H 33/66 (2006.01) H01H 9/04 (2006.01) H01H 33/00 (2006.01)

Patent

CA 1101473

ABSTRACT OF THE DISCLOSURE A vacuum switch structure is detailed which includes an electrically insulating, resilient elastomeric annular member disposed between the opposed spaced apart external parallel plate connection members. The thickness and resilience of the elastomeric annular member is such that the switch contacts are normally spaced apart in a fail-safe open circuit position. A compressive force must be exerted on the parallel plate con- nection members to compress the resilient, elastomeric annular member and bring the contacts together within the vacuum chamber to close the switch.

296726

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