Valve assembly

Details Valve assembly Valve assembly

1976-01-14

1977-12-27

Knowles, Allen N.

Dispensing

Gas or vapor dispensing

251322, 431254, B67B 724

Patent

active

040650294

ABSTRACT:
By mounting a spring-like resiliently flexible member between the shoulder of a die cast valve stem and tabs or flanges of a valve housing so as to biasingly engage the valve stem with the valve housing in the closed position, a unique, self-contained, captured valve assembly is provided. In the preferred embodiment, the valve stem incorporates a dust deflecting shoulder in order to prevent unwanted debris from entering the area between the valve stem and valve housing. In another embodiment, the valve housing comprises two sections frictionally engaged with each other with one section manufactured from brass or aluminum to eliminate leakage therethrough. This valve assembly is particularly useful in gas lighters of the butane fuel type, since the embodiments of the present invention provide against leakage and secondary ignition.

REFERENCES:
patent: 2177278 (1939-10-01), Hill et al.
patent: 2525617 (1950-10-01), Phillips
patent: 2667993 (1954-02-01), Ayres
patent: 3055201 (1962-09-01), Smith
patent: 3280599 (1966-10-01), Projahn
patent: 3409049 (1968-11-01), Racek
patent: 3490658 (1970-01-01), Schwartzman
patent: 3508689 (1970-04-01), Webster
patent: 3525497 (1970-08-01), Zalar
patent: 3705785 (1972-12-01), Goto
patent: 3792963 (1974-02-01), Tricot

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