One piece filter media framework

Details One piece filter media framework One piece filter media framework

1992-12-24

1993-12-28

Hart, Charles

Gas separation

With means securing or retaining separating media

Hinged or pivoted retainer or clamp on backing frame or in...

55497, 55521, B01D 4652

Patent

active

052735648

ABSTRACT:
A one piece framework for holding the filter media of an air filter includes a pair of end walls integrally connected to a pair of frame members by a living hinge so that they may be pivotally moved between an assembled and unassembled position. A pair of side walls are integrally connected to the frame members by a living hinge only at their outermost ends so that they, too, may be pivotally moved between their assembled and unassembled position. The side walls and end walls are provided with a projection and a projection receiving latch that locks the end walls and side walls in their assembled state.

REFERENCES:
patent: 3660969 (1972-05-01), Fox
patent: 3712033 (1973-01-01), Gronholz
patent: 3778985 (1973-12-01), Daigle et al.
patent: 3869392 (1975-03-01), Wolf
patent: 4217122 (1980-08-01), Shuler
patent: 4547950 (1985-10-01), Thompson

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