Fluid controller with pivoting valve stem operator

Valves and valve actuation – With means for blocking or disabling actuator – Latch manipulator mounted on handle or stem

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Details

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.

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