Valve device for draining liquids

Details Valve device for draining liquids Valve device for draining liquids

1977-04-15

1979-04-24

Cline, William R.

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

2511496, 251144, 137351, F16L 3728

Patent

active

041508092

ABSTRACT:
A valve device for draining liquids from a tank and, more particularly, a valve device for draining lubricating oil from an engine crankcase. The valve of the invention is characterized in having a generally tubular valve casing, containing a valve element spring-biased into closed position, which is permanently threaded into an opening in a tank. To open the valve and drain the contents of the tank, a pressing sleeve is inserted into the valve casing, this pressing sleeve serving to engage the valve element and unseat it as the sleeve advances into the casing by turning a cap nut which threads onto the casing, whereupon liquid will flow through the now-open valve and the pressing sleeve to a sump or the like.

REFERENCES:
patent: 130835 (1872-08-01), Bailey
patent: 308479 (1884-11-01), Frazier
patent: 1695722 (1928-12-01), Smith
patent: 1994770 (1935-03-01), King
patent: 2181758 (1939-11-01), Goon et al.
patent: 2255203 (1941-09-01), Wiegand
patent: 3335751 (1967-08-01), Davis, Jr.
patent: 3477459 (1969-11-01), Schosson
patent: 3592439 (1971-07-01), Ritchie, Jr.
patent: 3756273 (1973-09-01), Hengesbach
patent: 3825222 (1974-07-01), Petrova

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