Filter system for wet vacuum cleaning apparatus

Details Filter system for wet vacuum cleaning apparatus Filter system for wet vacuum cleaning apparatus

1991-03-28

1992-09-29

Dawson, Robert A.

Liquid purification or separation

Plural distinct separators

Filters

210342, 210442, 210453, 210487, B01D 2915

Patent

active

051511819

ABSTRACT:
The liquid filter assembly including a filter housing with an inlet below a prescribed external liquid level and having a generally cylindrical filter unit inside it with reusable filter elements which effectively operate at low pressure drops and permitting bypass liquid to recirculate within the filtered section without passing through the filter element and providing a filter support frame having the filter element supported thereon to provide a changeable filter assembly unit sealingly mounted within the housing.

REFERENCES:
patent: 2670852 (1954-03-01), Davidson
patent: 2702638 (1955-02-01), Nugent
patent: 3167507 (1965-01-01), Burhans et al.
patent: 3233738 (1966-02-01), Burhans et al.
patent: 3476249 (1969-11-01), Gray et al.
patent: 3508657 (1970-04-01), Cooper
patent: 3667613 (1972-06-01), Angold
patent: 4525275 (1985-06-01), Ostlund
patent: 4909937 (1990-03-01), Hoffmann et al.

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