Dripless coupler

Details Dripless coupler Dripless coupler

1981-01-12

1983-02-15

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

13761404, 13761405, 1376275, F16L 3728

Patent

active

043735517

ABSTRACT:
A dripless coupler containing a female and a male coupler, the female coupler retained within a housing. The female coupler includes a receptacle enclosing a cavity having an inlet port, an outlet port and an open bore located at one end thereof. Positioned between the receptacle and the open bore is a movable seat which mates with a flat smooth end surface of the main poppet valve which is retained within the cavity. The main poppet valve is normally biased to a closed position against the movable seat. Insertable into the open bore of the female coupler is the male coupler which includes a receptacle enclosing a cavity with an inlet opening. Positioned within the inlet opening is a movable check valve having a flat outer end surface which is mateable with the end surface of the main poppet valve. When the male and female end surfaces join, a flush surface results which prevents the leakage of hydraulic fluid during the uncoupling operation.

REFERENCES:
patent: 695839 (1902-03-01), Roberts et al.
patent: 3036595 (1962-05-01), Rogers
patent: 3213884 (1965-10-01), Moyer et al.
patent: 3301272 (1967-01-01), Pettyjohn et al.
patent: 3348575 (1967-10-01), Simak
patent: 3464436 (1969-09-01), Bruning
patent: 4181150 (1980-01-01), Maldavs
patent: 4221235 (1980-09-01), Maldavs
patent: 4249572 (1981-02-01), Shindelar
patent: 4303098 (1981-12-01), Shindelar
Machine Design, Aug. 11, 1977, vol. 49, No. 18, "The Right Way to Select Quick Disconnects", by Wayne Wilcox, pp. 86-90.

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