Valves and valve actuation – With correlated flow path – Tank
Patent
1980-11-03
1982-11-30
Chambers, A. Michael
Valves and valve actuation
With correlated flow path
Tank
251 93, 251299, 184 15, 137351, F16K 5100, F16K 116
Patent
active
043613101
ABSTRACT:
A drain valve assembly for attachment to the threaded drain opening of an automobile crankcase is disclosed. A drain plug, which is engageable with the threaded drain opening of the automobile crankcase, is provided with an axially extending bore which defines a drain passage in communication with the crankcase. A counterbore formed in the tightening head of the drain plug defines a valve seat. An anchor plate is fastened to the underside of the crankcase by the drain plug. A valve release plate is moveably coupled to the anchor plate for movement from a valve closed position to a valve open position. A resilient, compressible valve head is mounted on the valve release plate for movement into and out of sealing engagement with the valve seat in the valve closed and valve open positions, respectively. The valve release plate is secured to the anchor plate by at least one fastener, such as a stud having a spiral cam engageable with a spring wire carried by the anchor plate, and is manually releasable to permit movement of the release plate to the valve open position for drainage of the crankcase.
REFERENCES:
patent: 903606 (1908-11-01), Pollock
patent: 1464745 (1923-08-01), Campbell
patent: 1626089 (1927-04-01), Jakosky
patent: 3103341 (1963-09-01), Moran
patent: 3477459 (1969-11-01), Schossow
patent: 3677369 (1972-07-01), Schramm
patent: 4298182 (1981-11-01), Balch
Chambers A. Michael
Griggs Dennis T.
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