Pressure relay adapted to signal the position of the movable mem

Details Pressure relay adapted to signal the position of the movable mem Pressure relay adapted to signal the position of the movable mem

1983-08-19

1985-01-08

Cohan, Alan

Expansible chamber devices

With inspection window in expansible chamber wall portion

With lock

13762566, 137557, F01B 3112

Patent

active

044921497

ABSTRACT:
The invention relates to a pressure relay comprising inside its body, and besides a distributor device with a pressure inlet, an outlet and an exhaust, an auxiliary conduit of large cross-section which is connected with a control input of the said distributor device and comprises means to mount the said body on the jack, and to receive a pipe fitting supplying pressure to a jack.
The invention finds an application for signalling the outermost positions of a jack piston, or in combination with branch-pipe type jacks.

REFERENCES:
patent: 1482517 (1924-02-01), Kelsey
patent: 1668753 (1928-05-01), Baker
patent: 2892608 (1959-06-01), Collins
patent: 3648568 (1972-03-01), Wright

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