The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1992
Filed:
Apr. 30, 1991
Applicant:
Inventor:
Reiner Lenzen, Almont, MI (US);
Assignee:
TRW Vehicle Safety Systems Inc., Lyndhurst, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60R / ;
U.S. Cl.
CPC ...
280806 ; 60632 ; 242107 ; 297480 ;
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.