Bellows device

Details Bellows device Bellows device

1984-08-13

1986-04-29

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 83B, 138121, 138122, 285226, H01H 3366, F16L 1100, F16L 2100

Patent

active

045859132

ABSTRACT:
A bellows device having a plurality of recesses and ridges in the direction of expansion and contraction is used for a movable part of a vacuum switch tube. The thickness of an middle part in the direction of expansion and contraction is 1.2 times or more than the thickness of a part placed adjacent the middle part. The middle part has three or more ridges.

REFERENCES:
patent: 2366897 (1945-01-01), Grooms
patent: 2702996 (1955-03-01), Davis
patent: 2753415 (1956-07-01), Andresen, Jr.
patent: 2847035 (1958-08-01), Peters
patent: 3166658 (1965-01-01), Jennings
patent: 3620557 (1971-11-01), Sturn
patent: 4079217 (1978-03-01), Oeschger
patent: 4283078 (1981-08-01), Ross et al.
patent: 4295496 (1981-10-01), Bixby
patent: 4484772 (1984-11-01), Ross, Sr. et al.
patent: 4508373 (1985-04-01), Ward

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