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:
Apr. 01, 2014
Filed:
Mar. 03, 2011
Thomas Schmidt, Timmerndorfer Strand, DE;
Martin Schmidt, Elmshorn, DE;
Christian Fischer, Hamburg, DE;
Michael Pech, Hamburg, DE;
Matthias Steinberg, Kiebitzreihe, DE;
Tobias Voss, Klein Nordende, DE;
Thomas Schmidt, Timmerndorfer Strand, DE;
Martin Schmidt, Elmshorn, DE;
Christian Fischer, Hamburg, DE;
Michael Pech, Hamburg, DE;
Matthias Steinberg, Kiebitzreihe, DE;
Tobias Voss, Klein Nordende, DE;
Autoliv Development AB, Värgärda, SE;
Abstract
A pretensioning device () for a safety belt, of a motor vehicle, having a gas generator (), a piston () guided in a tube (), which closes a pressure area () in the tube () that is pressurized by the gas generator () whereupon the piston () is able to move in a pretensioning movement which is able to be conveyed to the safety belt by means of an inertia body () resting on a front face () of the piston (). The piston () forms a pass-through opening () releasable upon exceeding of a predetermined pressure and a recess () is provided in the front face () with an inertia body () resting thereon, so that a flow connection is created from the pass-through opening () to the area () located behind the piston () in the direction of the pretensioning movement (S).