Safety device for oil filters and the like

Details Safety device for oil filters and the like Safety device for oil filters and the like

1979-03-05

1980-05-27

Cuchlinski, Jr., William A.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

B01D 3512

Patent

active

042049652

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.

REFERENCES:
patent: 3333696 (1967-08-01), Rosaen
patent: 3333697 (1967-08-01), Rosaen

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