Valves and valve actuation – With means for blocking or disabling actuator – Latch manipulator mounted on handle or stem
Patent
1999-06-04
2000-08-22
Shaver, Kevin
Valves and valve actuation
With means for blocking or disabling actuator
Latch manipulator mounted on handle or stem
251 98, 251110, 251263, F16K 3502, F16K 31524
Patent
active
061059307
ABSTRACT:
A fluid controller comprises a pivotal member pivotally movable about the axis of a horizontal pin, a pair of rollable rollers rotatably supported by the lower end of the pivotal member and having an axis in parallel to the axis of the horizontal pin, a slope provided by the upper surface of a bonnet for allowing each roller to roll therealong in a plane orthogonal to the axis of the roller, and a stopper supported by the pivotal member so as to be movable between a position to engage with a valve stem and a position to be out of engagement therewith. The pivotal member is pivotally moved to roll the rollers along the slope and move the roller-supporting pivotal member upward or downward with the rolling movement, whereby the horizontal pin is raised or lowered.
REFERENCES:
patent: 3001417 (1961-09-01), Becker et al.
patent: 3419246 (1968-12-01), Burgess
patent: 3656709 (1972-04-01), Shufflebarger et al.
patent: 3782413 (1974-01-01), Chacko
patent: 3945690 (1976-03-01), Masuda et al.
patent: 4782856 (1988-11-01), Siedhoff
patent: 5215120 (1993-06-01), Nimberger et al.
European Search Report dated Dec. 14, 1999.
Hirose Takashi
Nishimura Ryutaro
Fujikin Incorporated
Keasel Eric
Shaver Kevin
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