Safety device for oil filters and the like
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United States of America Patent
Stats
-
May 27, 1980
Grant Date -
N/A
app pub date -
Mar 5, 1979
filing date -
May 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Safety device for oil filters and the like, having a casing containing a filtering cartridge, wherein a piston is entered with a frictional fit in said casing against a spring means, said piston being forced towards the bottom of the casing into a waiting position by the insertion of said cartridge; at least one oil passage being provided through said piston, said spring means returning the piston in its active position upon removal of the cartridge from the casing and a means being provided for releasably locking said piston in its active position.
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Family
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Cited Art Landscape
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