Filter and filter cleaning apparatus and related methods

Details Filter and filter cleaning apparatus and related methods Filter and filter cleaning apparatus and related methods

2005-11-01

2005-11-01

Lithgow, Thomas M. (Department: 1724)

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

C210S413000, C210S355000, C210S107000, C210S108000

Reexamination Certificate

active

06959818

ABSTRACT:
Apparatus and methods include an improved filter (203) and cleaning process.

REFERENCES:
patent: 3568414 (1971-03-01), Spriggs
patent: 4060483 (1977-11-01), Barzuza
patent: 4692247 (1987-09-01), Orlans

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