Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1987-10-30
1989-11-28
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148R, 174178, 174182, 174186, H01H 3342
Patent
active
048839302
ABSTRACT:
A switch apparatus comprising a switch mechanism including a first contact, and a second contact movable into and out of engagement with the first contact for respectively closing and opening the switch mechanism, an operating rod assembly connected to the second contact for moving the second contact into and out of engagement with the first contact in response to movement of the operating rod assembly, the operating rod assembly including an operating rod having an outer surface, a first end adapted to be connected to a prime mover, and an opposite second end, and a conductive member connected to the second end of the operating rod and to the second contact, the conductive member having a construction for reducing the magnitude of electrical stress adjacent the outer surface and for positioning electrical stress away from the outer surface, and a pressure vessel for enclosing the switch mechanism and the operating rod assembly and surrounding the switch mechanism and the assembly with dielectric gas.
REFERENCES:
patent: 1501688 (1924-07-01), Steinberger
patent: 2888257 (1959-05-01), Taylor
patent: 3189717 (1965-06-01), Tominaga
patent: 3877523 (1975-04-01), Ely
patent: 4360288 (1982-11-01), Rutledge, Jr. et al.
patent: 4663498 (1987-05-01), Rye
Blish Nelson A.
Cooper Power Systems, Inc.
Macon Robert S.
Scott Eddie E.
Thiele Alan R.
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