Flame arresting air filter element

Details Flame arresting air filter element Flame arresting air filter element

1980-01-28

1981-05-19

Prunner, Kathleen J.

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

291635F, 55498, 55524, 55526, 55DIG5, B01D 5000, B01D 4624, B01D 4652

Patent

active

042682894

ABSTRACT:
A flame arresting filter element for air intake systems has an outer ring of pleated filtering paper and an inner, concentric ring formed of expanded metal foil, longitudinally stretched and laterally compressed so as to be adapted to diffuse and quench frames resulting from engine backfire. The inner ring is coated with a relatively inert, cohesive substance to provide a unitary structure. The two rings are provided with resilient end caps.

REFERENCES:
patent: 1664629 (1928-04-01), Kielberg
patent: 2037164 (1936-04-01), Harrah
patent: 2262013 (1941-11-01), Lang
patent: 2829733 (1958-04-01), Bartels et al.
patent: 3031827 (1962-05-01), Onstad et al.
patent: 3209520 (1965-10-01), McKinlay
patent: 3681898 (1972-08-01), Hopkins et al.
patent: 3940547 (1976-02-01), Needham et al.
"Expanded Aluminum, " Modern Metals, 5-1947, p. 21.

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