Separable high vacuum valve

Details Separable high vacuum valve Separable high vacuum valve

1982-05-24

1985-01-29

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

137572, 137575, 13761418, 251199, 251204, 430296, F16L 3728, F16K 2500

Patent

active

044959664

ABSTRACT:
A valve structure permitting two vacuum chambers (16, 20) to be separted or joined without breaking the vacuum in either. The structure includes first and second valves (10, 12) positioned at openings in the vacuum chambers, a valve housing 30 surrounding the valves and able to be sealed to form a valve lock chamber (32), and a pair of valve actuators (34, 36). Each valve includes a pair of plates movable together to an intermediate position over the opening, and then movable away from each other in response to further actuator movement, to seal one of the plates over the opening. In one disclosed embodiment the plates are moved apart by a pair of parallel pivot links, and in another embodiment a pair of balls is used to effect the required sealing movement.

REFERENCES:
patent: 1002512 (1913-12-01), Gainer
patent: 2687903 (1954-08-01), Zeeb
patent: 3216694 (1965-11-01), Perazone
patent: 3321174 (1967-05-01), Schertler
patent: 3340176 (1967-09-01), Belluso et al.
patent: 3656454 (1972-04-01), Schrader
patent: 4052036 (1977-10-01), Schertler
patent: 4274454 (1981-06-01), Cook

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