Unitary filter for pyrotechnic air bag inflator

Details Unitary filter for pyrotechnic air bag inflator Unitary filter for pyrotechnic air bag inflator

1995-04-07

1996-09-17

Bushey, C. Scott

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55495, 55523, 55524, 280740, B01D 4600

Patent

active

055564399

ABSTRACT:
A unitary rigid filter for use in a high temperature, high pressure application in a pyrotechnic airbag inflator includes a matrix structure formed of porous carbonaceous foam material coated with silicon material and having a high thermal conductivity coefficient for absorbing heat from the gases generated on ignition of a pyrotechnic material. The porous, carbonaceous foam has a porosity or permeability of approximately 40 ppi to 80 ppi and a thin, sheet-like liner of porous, ceramic paper is mounted on the body of the foam matrix structure for improving operational characteristics.

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