Valves and valve actuation – Mechanical movement actuator – Ratchet
Patent
1994-09-14
1995-06-06
Walton, George L.
Valves and valve actuation
Mechanical movement actuator
Ratchet
74575, 222179, 251295, 251322, F16K 3144
Patent
active
054215528
ABSTRACT:
A foot-operated valve includes a valve set with a hollow seat and a push rod that extends movably and slidably into the hollow seat and that has a bottom end with a plug provided therearound. The push rod is biased to a first position, wherein the plug blocks normally a distal bottom end of a tubular sleeve that is secured in the hollow seat. When downward pressure is applied on the push rod to move the push rod to a second position, the plug ceases to block the bottom end of the tubular sleeve to permit communication between water outlet and inlet holes of the hollow seat. A control unit is secured to the hollow seat and includes a button retaining seat, a button and a rotary member. The control unit is operable to retain releasably the push rod in a depressed state to maintain communication between the water outlet and inlet holes even when the downward pressure applied on the push rod is extinguished.
REFERENCES:
patent: 1562979 (1925-11-01), Muend
patent: 1779064 (1930-10-01), Gohring
patent: 2042278 (1936-05-01), Sloan
patent: 2839264 (1958-06-01), Trubert
patent: 3220695 (1965-11-01), Downey et al.
patent: 3333815 (1967-08-01), Downey et al.
patent: 4116216 (1978-09-01), Rosenberg
patent: 4221238 (1980-09-01), Madsen
patent: 4344457 (1982-08-01), Caroli
patent: 4456222 (1984-06-01), Shen
patent: 5029806 (1991-07-01), Huo-Lien et al.
Chang Fang-Hsiung
Wang Wen-Bin
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