Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1986-11-10
1989-08-08
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
137614, 2511496, F16L 3728
Patent
active
048543454
ABSTRACT:
This coupler with valves is of the type which includes an outer tubular body (2), equipped, at one end (2") with means (3) of rigid connection with a source of fluid under pressure, at the other end of which is made the female fitting (7') of the coupler, this female fitting (7'), which contains the valve (14), situated on the feed circuit side, being arranged to permit the engagement and the locking, in its bore, of the male fitting (11) of this coupler, which, in turn, contains the valve (13), situated on the side of use of the fluid under pressure. The head of the valve (14), situated on the feed side, has a bore (14a), supporting an auxiliary valve (22), of which the return spring (25) is weaker than that (15) of the main valve (14), and which can be pushed back into open position by the valve (13) of the male fitting (11), as soon as this latter exerts a push against it, this auxiliary valve (22) being arranged so that its opening puts into communication the spaces (28, 31) situated on either side of the seat (18) of the main valve (14).
REFERENCES:
patent: 3132667 (1964-05-01), Baker et al.
patent: 3570543 (1971-03-01), Ekman
patent: 3791411 (1974-02-01), Bogeskov et al.
patent: 4200121 (1980-04-01), Walter et al.
patent: 4394874 (1983-07-01), Walter
patent: 4398561 (1983-08-01), Maldavs
patent: 4509554 (1985-04-01), Failla
Chambers A. Michael
Morgan Christopher H.
Parker Hannifin RAK
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