Coupling device

Details Coupling device Coupling device

1980-04-18

1981-09-15

Nilson, Robert G.

Fluid handling

Systems

Flow path with serial valves and/or closures

F16L 3728

Patent

active

042891647

ABSTRACT:
A coupling device has two connectable and disconnectable coupling parts. A first of said coupling parts is provided with a centrally arranged body and an inner casing slidingly arranged between two positions relative to the central body. In a first or disconnected position, the inner casing cooperates with the central body to keep closed a passage for a fluid medium through the first coupling part. A second of said coupling parts has a front section interactable with the inner casing in order to force the inner casing to a second position against the force of a spring which urges the casing towards the body. In the second or connected position of the inner casing, the passage for the fluid medium is opened.

REFERENCES:
patent: 2254997 (1941-09-01), Fisher
patent: 2304390 (1942-12-01), Wolfram
patent: 2457251 (1948-12-01), Main
patent: 2821412 (1958-01-01), Frye
patent: 3039794 (1962-06-01), DeCenzo
patent: 3117592 (1964-01-01), Abbey
patent: 3224728 (1965-12-01), Buseth
patent: 3285283 (1966-11-01), Calvin
patent: 3417781 (1968-12-01), Gregg
patent: 3450424 (1969-06-01), Calisher
patent: 4086939 (1978-05-01), Wilcox

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