Integrated canister for an airbag inflator

Details Integrated canister for an airbag inflator Integrated canister for an airbag inflator

1995-12-21

1997-02-25

Ellis, Christopher P.

Land vehicles

Wheeled

Attachment

280736, 280740, 222 3, B60R 2126

Patent

active

056053495

ABSTRACT:
A canister for an airbag inflator includes a tubular body having a cylindrical shape elongated from a first end to a second end along a longitudinal central The tubular body forms a continuous wall that defines a pressurized gas chamber at the first end and a diffuser at the second end. The continuous wall is spaced from the central axis by an approximately constant radial distance from the first end to the second end. The canister also includes a burst disk integrally formed with the body from a single piece of material (e.g., aluminum alloy). The burst disk is oriented transverse to the central axis to separate the pressurized gas chamber from the diffuser. The burst disk has a thickness less than that of the body wall. Because the burst disk and wall are formed of the same material according to these relative thicknesses, the burst disk will rupture before the structural integrity of the wall is compromised. A score pattern can be imprinted on the burst disk to facilitate uniform failure during activation of the inflator.

REFERENCES:
patent: 3966225 (1976-06-01), Marlow
patent: 3968980 (1976-07-01), Hay
patent: 4018457 (1977-04-01), Marlow
patent: 5195777 (1993-03-01), Cuellas
patent: 5411290 (1995-05-01), Chan et al.
patent: 5482315 (1996-01-01), Chandler, Jr. et al.
patent: 5536040 (1996-07-01), Cuellas et al.
patent: 5542702 (1996-08-01), Green et al.

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