Spin-on oil filter replacement element

Details Spin-on oil filter replacement element Spin-on oil filter replacement element

1995-03-20

1996-08-27

Savage, Matthew O.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2952502, 2952511, 210130, 210136, 210232, 210444, 210454, 210455, B01D 3502

Patent

active

055488935

ABSTRACT:
A modular oil filter is used in an engine with a spin-on type oil inlet port. An adapter is screwed onto the inlet port, and secured thereon by a lock nut. A backflow valve may optionally be secured between the lock nut and the adapter to cover the oil entrance(s) in the adapter. A replaceable oil filter element is coaxially located against a seal shoulder of the lock nut. A housing or canister surrounds the filtration element and releasably secures to the adapter. The filter element may have outwardly extending tabs, an inner or outer diameter releasably connected to a spring coil, or other means to releasably secure the filter element within the canister prior to being placed on the adapter/lock nut.

REFERENCES:
patent: 3333703 (1967-08-01), Scavuzzo et al.
patent: 5066381 (1991-11-01), Faria
patent: 5089129 (1992-02-01), Brigman
patent: 5114572 (1992-05-01), Hunter et al.
patent: 5342519 (1994-08-01), Friedmann et al.
patent: 5374355 (1994-12-01), Habiger et al.

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