Inflator

Details Inflator Inflator

2006-03-07

2006-03-07

Carone, Michael J. (Department: 3641)

Ammunition and explosives

Jacketed or cartridge gas generator

For gas-powered tools or means

C280S736000, C280S740000, C280S741000, C280S742000

Reexamination Certificate

active

07007610

ABSTRACT:
An inflator (1) is disclosed for use in a safety device within a motor vehicle, for example, for inflating an air-bag. The inflator comprises at least one gas outlet (23) having an initial predetermined gas flow area. The or each gas outlet incorporates a deformable part (41) which is configured to deform, in response to a predetermined gas pressure, so as to increase the gas flow area of the gas outlet. The deformable part (41) may be surrounded by a slot (40) which initially constitutes the outlet. The deformable part includes a neck (42) which bends so that the deformable part (41) opens like a flap. The invention is particularly suited for incorporating in a hybrid multi-stage gas generator comprising two or more pyrotechnic charges that can be actuated in combination or independently. The variable-area gas flow outlet provides an arrangement to vary the cross-section or area of a gas flow passage in response to a high pressure of gas.

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