High pressure spin-on filter

Details High pressure spin-on filter High pressure spin-on filter

1987-03-23

1989-08-08

Fisher, Richard V.

Liquid purification or separation

With repair or assembling means

210440, 210443, 210453, 21049701, 210DIG17, 55495, 55502, B01D 2708

Patent

active

048550477

ABSTRACT:
An improved spin-on, throw-away type fluid filter assembly which is capable of withstanding operational pressures in excess of 1000 psi adapted to by threadably affixed to a filter mounting means. The improved filter assembly includes a housing having a closed end and an open end which receives a base plate. The open end of the housing is folded inwardly over the base plate. A cap having a downwardly extending skirt is then press-fitted over the open end of the housing and extends substantially coexistent with the base plate and is then roll-formed so that the periphery of the skirt engages the exterior of the housing at the lower surface of the base plate to add strength to the structure.

REFERENCES:
patent: 3460676 (1969-08-01), Kaster
patent: 4237015 (1980-12-01), Fearnhead
patent: 4369113 (1983-01-01), Stifelman
patent: 4575422 (1986-03-01), Zimmer

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