Dual transmission filter design

Details Dual transmission filter design Dual transmission filter design

2007-11-13

2007-11-13

Lithgow, Thomas M. (Department: 1724)

Liquid purification or separation

With repair or assembling means

C210S323100, C210S167080, C210S416500

Reexamination Certificate

active

11311059

ABSTRACT:
A method and apparatus for a compact dual transmission filter design is provided. More precisely, a single filter housing is adapted to accommodate a primary filter and an auxiliary filter in fluid communication with a primary pump and auxiliary pump, respectively. The single filter housing having two filters disposed therein is more compact than a conventional design incorporating a separate filter housing for each filter.

REFERENCES:
patent: 3056501 (1962-10-01), Thorman et al.
patent: 3664509 (1972-05-01), Grill
patent: 4496460 (1985-01-01), Haarstad et al.
patent: 5766468 (1998-06-01), Brown et al.
patent: 5922199 (1999-07-01), Hodgkins
patent: 6793812 (2004-09-01), Caldwell et al.

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