Compressed fluid saving device

Details Compressed fluid saving device Compressed fluid saving device

1985-06-12

1986-09-02

Garrett, Robert E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Exhaust control

91410, 91420, 91421, F15B 1522

Patent

active

046089101

ABSTRACT:
The invention relates to a compressed fluid saving device positioned between the outlet of a distributor and the admission of a pneumatic jack. The device comprises a valve which is kept open, to allow the flow of driving fluid into one chamber of the jack from the start and right through the stroke, by the exhaust back-pressure escaping from the other chamber of the jack, and acting on the piston of said valve. When the back-pressure disappears, the valve closes under the action of a screw-adjustable spring.

REFERENCES:
patent: 1003163 (1911-09-01), Turner
patent: 2372942 (1945-04-01), Fischer et al.
patent: 2467508 (1949-04-01), Trautman
patent: 3566747 (1971-03-01), Frame
patent: 3643684 (1972-02-01), Moore
patent: 3768371 (1973-10-01), Prime
Neues aus der Technik, Nos. 5 and 6, Dec. 1964.

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