Valves and valve actuation – Rotary valves – Plug
Patent
1978-11-29
1981-06-30
Cline, William R.
Valves and valve actuation
Rotary valves
Plug
251317, 251357, 251DIG1, F16K 500
Patent
active
042758688
ABSTRACT:
A plastic valve assembly includes a body member and a controller member each having alignable transverse flow passageways and constantly aligned longitudinal flow passageways. The controller member is positioned in the body member for rotatably aligning the transverse passageways. Axially spaced about the exterior of the transverse body passageway are a pair of lands and axially spaced about the transverse controller passageway are a pair of resilient seals. A recess completely surrounds the exterior of the transverse controller passageway with a resilient wiper seal seated in the recess. The controller member is so positioned in the body member that the resilient seals constantly and sealingly engage the lands and the wiper seal constantly and sealingly engages the interior wall of the body member surrounding the transverse controller flow passageway.
REFERENCES:
patent: 712679 (1953-04-01), Pensak
patent: 2433732 (1947-12-01), Brown
patent: 2840109 (1958-06-01), Wadleigh
patent: 2852226 (1958-09-01), Wheatley
patent: 3326519 (1967-06-01), Freed
patent: 3437310 (1969-04-01), Inch
patent: 3474818 (1969-10-01), Hartman
patent: 3540694 (1970-11-01), Cornelius
patent: 3938553 (1976-02-01), Ortega
patent: 3971402 (1976-07-01), Gallo
patent: 4014513 (1977-03-01), Bake
Cline William R.
Lettvin Norman
Spiegel H. Jay
Unarco Industries, Inc.
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