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:
Feb. 05, 2008
Filed:
Oct. 31, 2002
Wilfried Bullinger, Korntal-Muenchingen, DE;
Walter Eberle, Hochdorf, DE;
Markus Woldrich, Ditzingen, DE;
Wilfried Bullinger, Korntal-Muenchingen, DE;
Walter Eberle, Hochdorf, DE;
Markus Woldrich, Ditzingen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
Method for actuating a reversible belt pretensioner for pretensioning a belt webbing, unwound from a belt reel, of a seat belt in a motor vehicle, the belt pretensioner having a drive which acts on the belt reel, and the seat belt having, as a belt extraction lock, a locking device which acts on the belt reel in the unwinding direction and whose locking can be released only if the belt reel is rotated about a certain angle of rotation in the winding-on direction. After a triggering of the belt pretensioner caused by a hazardous situation and if a variable indicative of the belt force indicates a decrease in the belt force, an opening mode is initiated in which the belt pretensioner drive is actuated in order to open the blocking device in such a manner that, at the beginning of the opening mode, the belt reel rotates about the specific angle of rotation in the winding-on direction.