Filters

Details Filters Filters

1975-03-14

1980-04-29

Sever, Frank

Gas separation

Two or more separators

Spaced for parallel flow of gas

55500, 55529, B01D 4602

Patent

active

042004446

ABSTRACT:
Gas filtration apparatus comprises a filter element mounted in a casing having an inlet and an outlet so disposed that gas flowing from inlet to outlet is constrained to pass through the filter element, an audible warning device operable by gas flowing through the inlet and means responsive to the difference between the gas pressure at the inlet and the gas pressure at the outlet and arranged to cause the audible warning device to operate whenever said difference exceeds a predetermined value.

REFERENCES:
patent: 1262495 (1918-04-01), Hills
patent: 2203570 (1940-06-01), Hollebone
patent: 2337574 (1943-12-01), Sloan et al.
patent: 2994407 (1961-08-01), Van Diepenbroek
patent: 3231094 (1966-01-01), Wiegand
patent: 3391787 (1968-07-01), Salomon
patent: 3467256 (1969-09-01), Humbert et al.
patent: 3847577 (1974-11-01), Hansen
patent: 3877903 (1975-04-01), Peterson
patent: 3898067 (1975-08-01), Genton

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