Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1999-07-07
2000-10-31
Rivell, John
Fluid handling
Line condition change responsive valves
Direct response valves
137223, 137232, 137855, 446224, F16K 1520
Patent
active
061387118
ABSTRACT:
An air valve for an inflatable device, which includes a valve block having two downward locating plates, a valve cap detachably closed on the valve block, and a valve flap fastened to an inside annular flange inside the valve block and turned to close/open the air passage through the valve block, wherein the valve flap has a finger rod raised from a free flap portion thereof for the holding of the hand to turn the free flap portion of the valve flap downwards from a close position to an open position, enabling the free flap portion to be forced through the gap between the locating plates and then stopped at the locating plates in the open position.
REFERENCES:
patent: 1136932 (1915-04-01), Brucker
patent: 1158206 (1915-10-01), Griffith
patent: 2839073 (1958-06-01), Marsh
patent: 3646704 (1972-03-01), Ellsworth
patent: 4004614 (1977-01-01), Mackal et al.
patent: 5285816 (1994-02-01), Herlihy
patent: 5343889 (1994-09-01), Jaw
Casey, Esq. Donald C.
Ho Lee Co., Ltd.
Rivell John
Schenfeld Meredith M.
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