Pre-filter device

Details Pre-filter device Pre-filter device

2005-03-08

2005-03-08

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

C210S314000, C210S499000

Reexamination Certificate

active

06863804

ABSTRACT:
A pre-filter device for use with filter canisters is described which will prevent pressure build-up, clogging and engine damage. The pre-filter device comprises a metal screen having a relief port positioned within the pre-filter device for collecting the majority of the larger metallic particles and debris suspended within the oil.

REFERENCES:
patent: 2646884 (1953-07-01), Findley
patent: 5112476 (1992-05-01), Cote et al.
patent: 5316665 (1994-05-01), Hart

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