Autopneumatic compressed gas switch

Details Autopneumatic compressed gas switch Autopneumatic compressed gas switch

1982-07-30

1984-10-02

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3388

Patent

active

044750170

ABSTRACT:
An autopneumatic compressed gas switch comprises a gas cylinder with a piston which is cooperable with the cylinder and with one of them being movable relative to the other with changes of gas pressure. The stationary tubular part having one wall with an axially extending slot is disposed adjacent the cylinder and piston combination. A counter contact is disposed in the stationary tubular part and it has a radial projection which extends through the slot of the stationary part. An insulating bushing is connected to the movable one of the piston and cylinder set and is movable therewith. The insulating bushing carries a contact piece which is engageable with the counter contact. A releasable latch is connected between the bushing which has the contact piece and the counter contact so that the two parts move together. The spring is provided between the first projection of the counter contact and the stationary tubular part in a spring system arranged to exert a biasing force during contact breaking to release the latch which effects the connection between the bushing and the counter contact, and to move the contact until the projection thereof goes to the end of the slot.

REFERENCES:
patent: 3098915 (1963-07-01), Chabala

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