Plastic transmission filter

Details Plastic transmission filter Plastic transmission filter

2003-09-17

2008-08-05

Savage, Matthew O (Department: 1797)

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

C210S445000, C210S457000, C210S167080, C156S308200

Reexamination Certificate

active

07407057

ABSTRACT:
A plastic transmission filter (1) composed of mating upper (2) and lower (3) shells of synthetic resin material with at least one set of registering weld posts (10) extending between inner surfaces of the upper and lower shells; a fluid pervious centertube (4) interposed between the mating shells around the weld posts, and a filter material (5) wrapped around the centertube to form a bag filter. The filter assembly can be welded together in a single vibration welding operation and provides enhanced flow of transmission fluid by avoiding flow restrictions caused by prior art reinforcement poles.

REFERENCES:
patent: 2639251 (1953-05-01), Kracklauer
patent: 5049274 (1991-09-01), Leason et al.
patent: 5853577 (1998-12-01), Gizowski et al.
patent: 19610414 (1997-09-01), None

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