Flame retarding filter device

Details Flame retarding filter device Flame retarding filter device

1974-10-15

1976-05-11

Lutter, Frank W.

Gas separation

Deflector

Plural deflectors overlapped and spaced serially in gas flow

55446, 98115K, 55DIG36, B01D 4508

Patent

active

039559491

ABSTRACT:
A flame retarding filter device is disclosed for use in an air exhaust system wherein the exhaust air carries grease particles and the like susceptible to combustion. The device has first and second rows of spaced parallel baffle elements each of which has a generally planar central portion and inclined longitudinal edges. The rows of baffle elements are supported in spaced relation with the baffle elements of the rearward row overlying the spaces between the baffle elements of the front row in a manner to retard the passage of flames through the device while allowing sufficient free flow of air through the unit to exhaust heat and odors from the room in which the device is employed.

REFERENCES:
patent: 1673906 (1928-06-01), Fager
patent: 1926262 (1933-09-01), Campbell
patent: 2292665 (1942-08-01), Schneible
patent: 2422527 (1947-06-01), Campbell
patent: 2523529 (1950-09-01), Zwickl
patent: 2720938 (1955-10-01), Cates
patent: 2752005 (1956-06-01), Auera et al.
patent: 3141910 (1964-07-01), Pearce
patent: 3566585 (1971-03-01), Voloshen et al.

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