Kelly cock rotary drive mechanism

Details Kelly cock rotary drive mechanism Kelly cock rotary drive mechanism

1982-07-26

1984-11-06

Schwadron, Martin P.

Valves and valve actuation

Limit stop

Rotary valve

251292, 251315, F16K 5100

Patent

active

044808135

ABSTRACT:
A valve body forms flow passages at longitudinally opposite sides of a stopper to be brought into communication through the stopper when the stopper is rotated from closed to open positions, the body having a side opening. To rotate the stopper there are provided:

REFERENCES:
patent: 2913219 (1959-11-01), Freed
patent: 3967811 (1976-07-01), Keller
patent: 4059250 (1977-11-01), Guldener et al.
patent: 4078763 (1978-03-01), Yamamoto

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