Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1991-09-12
1992-12-08
Michalsky, Gerald A.
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
91 1, 137552, 137554, 251 58, 251204, 251251, 2513353, F16K 31122, F16K 3700
Patent
active
051688964
ABSTRACT:
A valve operating mechanism produces a rotating force for causing a valve body of the valve to shift relative to a valve seat thereof, so that the valve is opened and closed. A piston of the mechanism produces a rectilinear reciprocating force. A screw member is supported moveably along the rectilinear line and unrotatably in the housing and includes a pair of pawls helically projecting along the rectilinear line and a helical interval space defined between the helical pawls. A pivot is inserted into the helical interval space. A cylindrical rotating member is supported rotatably and unmoveably along the rectilinear line in the housing so as to surround the screw member. When the screw member receives the rectilinear reciprocating force to perform the reciprocating motion along the rectilinear line, the pivot is urged to rotate along the helical interval space in the rectilinearly unmoved state, and the cylindrical rotating member can rotate with the pivot. Therefore the cylindrical rotating member can output the rotating force for causing the valve body of the valve to shift relative to the valve seat thereof.
REFERENCES:
patent: 3298659 (1967-01-01), Cupedo
patent: 4343455 (1982-08-01), Winkler
patent: 4470576 (1984-09-01), Schertler
patent: 4504038 (1985-03-01), King
patent: 4634094 (1987-01-01), Geiser
patent: 4651969 (1987-03-01), Dowdall
patent: 4669701 (1987-06-01), Tinner
Boesch Hubert
Taniguchi Tsutomu
Fuji Seiki Inc.
Michalsky Gerald A.
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