High capacity co-axial gas valve

Details High capacity co-axial gas valve High capacity co-axial gas valve

2006-03-14

2006-03-14

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

C137S630220, C137S601140

Reexamination Certificate

active

07011110

ABSTRACT:
A high capacity coaxial gas valve assembly having a coaxial construction with three valves, in which the assembly opens a smaller second valve prior to opening a larger first valve so that the valve can be operated by a relatively smaller and less expensive coil. In addition, or instead, the valve members may be configured so that the first valve is opened with the impact of a moving element that allows the valve to be operated with a relatively smaller and less expensive coil.

REFERENCES:
patent: 251035 (1881-12-01), Freeman
patent: 628671 (1899-07-01), Newman
patent: 1457937 (1923-06-01), Reynolds
patent: 2371351 (1945-03-01), Paille
patent: 2392741 (1946-01-01), Hurlburt
patent: 3727836 (1973-04-01), Visos et al.
patent: 4082116 (1978-04-01), Stampfli
patent: 4760694 (1988-08-01), Gillon, Jr.
patent: 6047718 (2000-04-01), Konsky et al.

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