Combination air pump and air filter

Details Combination air pump and air filter Combination air pump and air filter

1980-09-29

1983-02-01

Lacey, David L.

Rotary expansible chamber devices

With removal or accommodation of solid foreign material in...

With filter

417313, 55385B, 55469, 55482, 55489, 55507, F04C 1502, B01D 4610

Patent

active

043713220

ABSTRACT:
A two stage air filter adapted for use on an air pump as used in a motor vehicle for emission requirements, has a cylindrical, coarse filter element mounted along one end to a broadside of a thin, rigid baffle plate and a cylindrical, fine filter element mounted along one end to the other broadside of the baffle plate. The baffle plate cooperates with the end bell of the air pump to snappingly retain the filter in the pump and to compressingly hold the fine filter element inside the end bell.

REFERENCES:
patent: 2135100 (1938-11-01), Campbell
patent: 2565764 (1951-08-01), Flanagan
patent: 2678156 (1954-05-01), Henderson
patent: 2954786 (1960-10-01), Lebert
patent: 3073735 (1963-01-01), Till et al.
patent: 3111259 (1963-11-01), Demay
patent: 3204395 (1965-09-01), Howard
patent: 4103590 (1978-08-01), Pott
patent: 4196027 (1980-04-01), Walker et al.

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