Wasteless connecting valves

Details Wasteless connecting valves Wasteless connecting valves

1978-05-03

1980-05-27

Schwadron, Martin P.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

137315, 137319, 137238, 251319, 251324, 138 89, 138 94, F16K 3502

Patent

active

042046610

ABSTRACT:
A connection valve for connecting together and disconnecting a tank and a hose without wastage or spillage. A first housing part has a duct containing a slidable piston and communicating with at least one connection socket. A second part has a throughbore, a socket coaxial with the duct, a plug for sealing said socket, and a locking device for locking the plug in a sealing position. An axial drawing means is provided for pressing a surface of rotation of the plug against a mating surface of the piston.

REFERENCES:
patent: 578142 (1897-03-01), Fierz
patent: 2230434 (1941-02-01), Porter
patent: 2771096 (1956-11-01), Ver Novy
patent: 2988111 (1961-06-01), Ver Novy
patent: 3155116 (1964-11-01), Ver Novy
patent: 3923082 (1975-12-01), Blazek
patent: 3949963 (1976-04-01), Aoki
patent: 3991791 (1976-11-01), Luckenbill
patent: 4026324 (1977-05-01), King et al.
patent: 4144909 (1979-03-01), Harrison

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