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:
May. 19, 2009
Filed:
May. 31, 2006
David R. Arnold, Macomb, MI (US);
Richard A. Boelstler, Lake Orion, MI (US);
David R. Arnold, Macomb, MI (US);
Richard A. Boelstler, Lake Orion, MI (US);
Key Safety Systems, Inc., Sterling Heights, MI (US);
Abstract
A pretensioner () for use with a seat belt system, the pretensioner comprising: a straight first tube () having a cylindrical wall (), a first end () and a second end (), at least one of the first end () or the second end () having an opening (); the first tube includes a first opening () in the wall () to receive a second tube (), the second tube () having a first end portion (), a second end portion () and a medial portion (), the medial portion configured to have a circular curvature of radius R; the second end portion is situated so that its center is collinear with a central axis () extending through the center of the first tube () and wherein an axis extending through the center of the first end portion is arranged at an acute angle relative to the central axis (); a pyrotechnic element () is provided at one end of the first tube to provide products of combustion to drive a piston () down the first tube, the motion of the piston moving a cable () in a direction to move a seat belt buckle to reduce belt slack about an occupant to be protected.