Flange cap for high vacuum system

Details Flange cap for high vacuum system Flange cap for high vacuum system

1992-11-23

1993-07-20

Shoap, Allan N.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

292252, B65D 4500

Patent

active

052285871

ABSTRACT:
A cap quickly sealing a distribution pipe of a vacuum chamber having a flange includes a cup shaped body that fits over the flange and contains a sealing disc with O-ring that presses against the flange surface. The cap is locked to the flange by steel balls that partially pass through holes in the body and wedge under the inserted flange, the balls being held or released by an outer sleeve with two interior ball races of a large and a smaller diameter so that drawing up the sleeve will permit the balls to enter the large diameter race and fall back to release a flange in the body.

REFERENCES:
patent: 2854274 (1958-09-01), Gordon
patent: 3617081 (1971-11-01), Drucker
patent: 3731837 (1973-05-01), Platts et al.
patent: 4198080 (1980-04-01), Carpenter
patent: 4395051 (1983-07-01), Tonomura

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