One-way filter unit

Details One-way filter unit One-way filter unit

1982-09-29

1984-12-18

Spear, Frank

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210390, 604 29, B01D 3504

Patent

active

044889615

ABSTRACT:
A one-way filter for use in fluid filtration comprising a housing having inlet and outlet ports, a filter element or elements, free of mobile fibers or filaments, disposed within said housing, and means within said housing for maintaining the filter element or elements in a filtering position during fluid infusion and in a free-flow position during fluid withdrawal.

REFERENCES:
patent: 2992701 (1961-07-01), White
patent: 3275145 (1966-09-01), Jacobellis
patent: 3545438 (1970-12-01), DeVries
patent: 3568977 (1971-03-01), Nelson
patent: 3930096 (1975-12-01), Gilpatrick
patent: 4111228 (1978-09-01), Simionescu
patent: 4141379 (1979-02-01), Manske
patent: 4167482 (1979-09-01), Muller
patent: 4222407 (1980-09-01), Ruschke et al.
patent: 4239041 (1980-12-01), Popovich et al.
patent: 4311587 (1982-01-01), Hose et al.

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