Self-closing water valve

Details Self-closing water valve Self-closing water valve

1994-02-22

1995-10-17

Nilson, Robert G.

Fluid handling

Systems

Programmer or timer

13763014, 251 15, F16K 2106

Patent

active

054581524

ABSTRACT:
A self-closing water valve has a valve seat, a valve closing member cooperates with the valve seat so as to abut against and to be lifted from the valve seat, and an auxiliary valve coupled with the valve closing member for reducing operational forces during lifting of the valve closing member from the valve seat and therefore opening the valve.

REFERENCES:
patent: 793698 (1905-07-01), Walter
patent: 1096220 (1914-05-01), Brooks
patent: 2899935 (1959-08-01), Dalton
patent: 4073314 (1978-02-01), Speelman
patent: 4088147 (1978-05-01), Krechel
patent: 4335852 (1982-06-01), Chow
patent: 4475578 (1984-10-01), Nidle

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