Rotary spherical plug valve

Details Rotary spherical plug valve Rotary spherical plug valve

1979-05-08

1981-04-07

Cline, William R.

Valves and valve actuation

Lost motion between actuator and valve

251 88, 251298, 251308, F16K 3144

Patent

active

042601290

ABSTRACT:
A rotary spherical plug valve having an annular valve seat, a closure member formed as a portion of sphere, support arms for supporting the closure member with one of the arms being connected to a driving shaft at a hub having a hole for admitting the shaft with a slightly larger diameter than the shaft and a force transmitting means in the form of a cylindrical connection member disposed between a semi-cylindrical groove in the shaft and a semi-cylindrical internal recess in the wall surrounding the hole in the hub.

REFERENCES:
patent: 2807485 (1957-09-01), Seibert
patent: 2919885 (1960-01-01), Daigle
patent: 3014332 (1961-12-01), Hubbard
patent: 3946986 (1976-03-01), Sutter et al.
patent: 3963211 (1976-06-01), Myers
patent: 4013264 (1977-03-01), Friedell
patent: 4073473 (1978-02-01), Rihm et al.
patent: 4074889 (1978-02-01), Engel
patent: 4118008 (1978-10-01), Myers

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