Filtration apparatus with exchangeable filters

Details Filtration apparatus with exchangeable filters Filtration apparatus with exchangeable filters

1994-01-14

1996-01-30

Drodge, Joseph W.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Fluid pressure responsive

210435, 210450, 21049701, 55498, B01D 2710, B01D 2996

Patent

active

054878284

ABSTRACT:
A filtration apparatus with exchangeable filters for hygienic filtration of contaminated fluids. A tubular filter housing (1) has a central bore (2) as a receiving chamber for a filter cartridge. O-shaped rings (5,6) are mounted at the ends and in the center of the wall of the receiving chamber, and these prevent fluid from leaking around the filter. The filter housing has a fluid entrance opening (7), and an exit (8). The filter cartridge has a filter element (11) and two end caps (13 and 14). The rear end cap (13) has an annular opening (16) which provides an open connection with a filter chamber (12) within the filter element. In an assembled state, the fluid entrance (7) is aligned with the annular opening (16) in the filter chamber. Contaminated fluid is drawn through entrance (7) and proceeds through the filter to fluid exit (8). The replacement of the filter cartridge takes place by pressing in a new filter cartridge at the top of the filter housing, which causes the pressing out of soiled filter at the underside of the housing, without needing any contact of the soiled filter by hand.

REFERENCES:
patent: 2632566 (1953-03-01), Morrison
patent: 3984325 (1976-10-01), Rosaen
patent: 4272368 (1981-06-01), Foord et al.
patent: 4686038 (1987-08-01), Arnaud
patent: 5006243 (1991-04-01), Arnaud

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