Inflator filter for producing helical gas flow

Details Inflator filter for producing helical gas flow Inflator filter for producing helical gas flow

1996-01-11

1997-08-26

Spitzer, Robert

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

553853, 55498, 55520, 55526, 55DIG5, 280740, B01D 4516, B01D 4640

Patent

active

056606060

ABSTRACT:
A filter (20) for use in an inflator assembly (10) is formed by combining a layer of filter media (22) with a barrier element such as metal foil sheet backing (24), and then subsequently wrapping the filter a plurality of times about a combustion chamber (16) located within the inflator assembly (10). The foil sheet backing (24) creates a barrier which causes the inflation gases to travel in a helical path about the combustion chamber (16). By providing a helical gas flow path, the filter (20) extends the filter path length without increasing overall dimensioning requirements of the filter, and produces centrifugal forces which improve particulate removal.

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