Grease filter

Details Grease filter Grease filter

2005-01-11

2005-01-11

Chiesa, Richard L. (Department: 1724)

Gas separation

Deflector

Plural deflectors overlapped and spaced serially in gas flow

C029S896620, C055S443000, C055S464000, C055SDIG005, C055SDIG003, C126S29900R

Reexamination Certificate

active

06840975

ABSTRACT:
The grease filter is made with components that are secured together about the periphery of the filter by a seam with smooth surfaces. In one embodiment, the filter is constructed of three components, namely, a pair of plates and a rectagular or square frame. The peripheral edges of the plates and frame are interfolded on each other to form a rolled seam. The resulting structure is rigid and does not twist.

REFERENCES:
patent: 3125869 (1964-03-01), Winton
patent: 3566585 (1971-03-01), Voloshen et al.
patent: 3870494 (1975-03-01), Doane
patent: 3952640 (1976-04-01), Kuechler
patent: 4085736 (1978-04-01), Kuechler
patent: 4350504 (1982-09-01), Diachuk
patent: 4557740 (1985-12-01), Smith
patent: 5302174 (1994-04-01), Guetersloh
patent: 5429116 (1995-07-01), Brown
patent: 6083302 (2000-07-01), Bauver, II et al.
patent: 6454825 (2002-09-01), Cheimets et al.

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