Guide means for the movable contact rod of a vacuum interrupter

Details Guide means for the movable contact rod of a vacuum interrupter Guide means for the movable contact rod of a vacuum interrupter

1983-03-21

1985-01-08

Pellinen, A. D.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 83D, H01H 3366

Patent

active

044928378

ABSTRACT:
A vacuum interrupter comprises an end plate having a central opening through which a movable contact rod extends. A tubular metallic bellows surrounds the contact rod and includes a plurality of annular convolutions at its inner diameter. Guide structure fixed to the end plate lines its central opening and is located outside said convolutions. A sleeve of self-lubricating plastic material surrounds the contact rod and is fixed thereto. This sleeve is disposed within the guide structure and within the tubular bellows and fits closely within said convolutions so that the convolutions are capable of bearing against the sleeve to assist in guiding the rod.

REFERENCES:
patent: 3176538 (1965-04-01), Hurlow
patent: 3622724 (1971-11-01), Sofianek
patent: 4071727 (1978-01-01), Crouch et al.
patent: 4271340 (1981-01-01), Griesen
patent: 4431885 (1984-02-01), Sakuma et al.

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