Motors: expansible chamber type – With motive fluid valve – Relatively movable serial valves
Patent
1980-04-21
1982-11-02
Cohen, Irwin C.
Motors: expansible chamber type
With motive fluid valve
Relatively movable serial valves
92163, 137615, 251 63, F15B 13042
Patent
active
043567606
ABSTRACT:
A locking device is integrated in a coupling fixed on a ram cylinder for feeding the cylinder with a first fluid. The circulation of that fluid is controlled by a second fluid. The device has (1) a cylindrical member with a tightening head at a first end, a second threaded end to engage in the cylinder, and an intermediate portion between the two ends. The intermediate portion has an axial outlet passage to the cylinder, and a lateral opening terminating at the passage. The device has a coupling head with a through bore, and an internal passage for the first fluid. The bore is shaped to receive the intermediate portion and to couple the opening to the feed passage. The device has movable internal members to modify circulation of the first fluid by moving under the combined effects of a resilient element and the pressure of a second fluid applied to an external locking inlet. The improvement is that the movable members (42, 70) are disposed in the axis XX' of the cylindrical element (4) in a region thereof extending from the intermediate portion (20) to the tightening head ( 15), the latter receiving the locking inlet (13).
REFERENCES:
patent: 2509880 (1950-05-01), Pelton
patent: 2705020 (1955-03-01), Frantz
patent: 2905432 (1959-09-01), Mercier
patent: 3323546 (1967-06-01), Lord
patent: 3712179 (1973-01-01), Hanson
patent: 3828652 (1974-08-01), Beneteau
Cohen Irwin C.
Drucker William A.
La Telemecanique Electrique
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