Valves and valve actuation – With correlated flow path – Tank
Patent
1993-03-19
1994-04-05
Rivell, John
Valves and valve actuation
With correlated flow path
Tank
251287, 251291, 251310, 251352, 184 15, F16K 504, F16K 3144
Patent
active
052997774
ABSTRACT:
A valved drain plug apparatus having a valve body with a bore extending therethrough and an opening along a surface extending into the bore, and an insert element rotatably mounted within the bore of the valve body. The insert element has a hole along one surface. The insert element is movable between a first position in which the hole is aligned with the opening and a second position in which the insert element closes the bore of the valve body. The insert element has a generally tubular configuration being open at one end and closed at another end. A key member is detachably received by the insert element. The key member serves to rotate the insert element between the first and second positions. The key member includes a body member having an interior passageway extending therethrough and in communication with the bore of the valve body. The key member also includes a key extending upwardly from the body member so as to engage a key slot formed on a surface of the insert element.
REFERENCES:
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patent: 4318531 (1982-03-01), Carlson
patent: 4632362 (1986-12-01), Lucking
patent: 4756349 (1988-07-01), Atkins
patent: 4951723 (1990-08-01), Hoeptner, III
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