Land vehicles – Wheeled – Attachment
Patent
1991-04-30
1992-09-08
Marmor, Charles A.
Land vehicles
Wheeled
Attachment
60632, 242107, 297480, B60R 2246
Patent
active
051452090
ABSTRACT:
A seat belt pretensioner according to the present invention comprises a piston movable by high pressure gas. A flexible cable, responsive to movement of the piston, rotates the take-up spool in a belt retraction direction to pull the belt against the vehicle occupant and eliminate slack in the belt. A linear ignition material for generating a high pressure gas is in fluid communication with the piston to move the piston in response to ignition of said linear ignition material. The linear ignition material comprises a frangible sheath and at least one gas generating pyrotechnic cord disposed within said sheath.
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patent: 4706990 (1987-11-01), Stevens
patent: 4750685 (1988-06-01), Frei
patent: 4750686 (1988-06-01), Fohl
patent: 4789185 (1988-12-01), Fohl
Marmor Charles A.
TRW Vehicle Safety Systems Inc.
Tyson Karin
LandOfFree
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