Pretensioner device

Details Pretensioner device Pretensioner device

2005-04-12

2005-04-12

Culbreth, Eric (Department: 3616)

Land vehicles

Wheeled

Attachment

Reexamination Certificate

active

06877776

ABSTRACT:
A pretensioner device in which, at a time of rapid deceleration of a vehicle such as a collision, a gas generator generates gas and the pretensioner device moves a piston in a direction of tensing a webbing. When, due to delayed detection by an acceleration sensor, the gas generator operates after a stretch-out load has been applied to a wire, high-pressure and high-temperature gas within a gas chamber contacts a guard pipe, which is formed of a material having a high thermal conductivity and is disposed within the gas chamber, and is cooled, and passes through a clearance and a pin hole communicating regions to a front and rear of the piston, and is discharged into a cylinder.

REFERENCES:
patent: 5671949 (1997-09-01), Bauer et al.
patent: 5887897 (1999-03-01), Gill et al.
patent: 6039353 (2000-03-01), Bauer et al.
patent: 6250682 (2001-06-01), Betz et al.
patent: 2408173 (1974-09-01), None
patent: 5-193446 (1993-08-01), None

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