Gas separation – With means securing or retaining separating media – Hinged or pivoted retainer or clamp on backing frame or in...
Patent
1980-04-25
1981-09-29
Lacey, David L.
Gas separation
With means securing or retaining separating media
Hinged or pivoted retainer or clamp on backing frame or in...
55499, 55500, 55501, 55502, 55529, B01D 4640
Patent
active
042920612
ABSTRACT:
An air filter assembly for a fuel-injected engine of the rectangular air inlet type typical of some imported automobiles is secured directly to the filter seat flange of the air intake opening of the engine, without a separate housing or canister. The filtering element is of a soft, porous foam material backed by a wire mesh of relatively large mesh size, and a collar at the base of the filter assembly is secured to both the filtering element and the backing mesh to hold the assembly together and in the proper configuration. Backing may be included on both the inner and the outer sides of the filtering element, sandwiched between inner and outer bands or flanges of the collar, with fasteners extending between the bands to pull them together and hold the filtering element and backing in the collar. The filtering element and backing are formed into an outwardly bulging, generally arcuate configuration for optimizing filtering area. A gasket is secured to the underside of the collar in position to engage the filter seat flange of the engine's air intake, and a series of over-center type pivot spring fasteners are secured to the outer side of the collar for engaging the air intake filter seat flange and holding the air filter assembly tightly in place.
REFERENCES:
patent: 2731104 (1956-01-01), Baker et al.
patent: 2771963 (1956-11-01), Eichorn
patent: 2847085 (1958-08-01), Ehlers
patent: 3385039 (1968-05-01), Burke et al.
patent: 3552103 (1971-01-01), Smith
patent: 3810350 (1974-05-01), Scholl
patent: 4082525 (1978-04-01), Allan
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