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:
Dec. 15, 2020
Filed:
Jan. 03, 2019
Autoliv Development Ab, Vargarda, SE;
Christian Fischer, Hamburg, DE;
Markus Furchert, Bokholt-Hanredder, DE;
AUTOLIV DEVELOPMENT AB, Vargarda, SE;
Abstract
A seatbelt tensioner for a seat belt retractor, having a pipe () with a tensioner drive wheel, a gas generator (), a piston (), and at least one mass body (). The mass body () is drivable by gas from the gas generator () acting on the piston () between the gas generator () and a mass body (). The mass body drives the tensioner drive wheel. The pipe () has a receiving section () with a first inner diameter (), in which the piston () in its initial state is arranged with an initial-state outer diameter (). The pipe () has a guide section () which adjoins the receiving section () and which has a second inner diameter (). The second inner diameter () is smaller than the first inner diameter () and smaller than the initial-state outer diameter () of the piston ().