Canister filter assembly

Details Canister filter assembly Canister filter assembly

1984-07-02

1985-12-31

Miles, Tim

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

55327, 55486, 55501, 55DIG3, B01D 4610

Patent

active

045618682

ABSTRACT:
A canister filter assembly (10) for use in a vacuum line for trapping particulates and liquids from fluid drawn through the vacuum line including a cupped shaped container portion (12) and a lid portion (14) disposed over the container (12) in sealing engagement therewith. The lid (14) includes a fluid inlet (28) and a fluid outlet (30). A filter assembly (16) including a hydrophobic filter (32) and a prefilter (34) filters the particles and aerosols from the fluids passing through the fluid outlet (30). A filter support (18) supports the filters (32, 34, 36) within the filter assembly (16) and includes a cap member (40) spaced below the prefilter (34). The cap member (40) includes an upwardly extending peripheral rim (42) perfecting a seal with the remainder of the filter support (18). The assembly (10) is characterized by the rim (42) including outwardly extending louver portions (50) defining upwardly facing openings (52) proximate to the lid (14) to provide a tortuous path for the entrance of aerosols and particles into the filter support (18).

REFERENCES:
patent: 1557592 (1925-10-01), Jones
patent: 1735441 (1929-11-01), Paffen et al.
patent: 2219567 (1940-10-01), Spielman
patent: 2226630 (1940-12-01), McCord
patent: 2639005 (1953-05-01), Gerstmann
patent: 2649927 (1953-08-01), Ortega
patent: 3082465 (1963-03-01), Wood
patent: 3732075 (1973-05-01), Acaba
patent: 4350504 (1982-09-01), Diachuk
patent: 4434564 (1984-03-01), Braggins, Jr.
patent: 4459139 (1984-07-01), von Reis et al.

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