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. 26, 2006
Filed:
Aug. 27, 2003
Sebastian Bierwirth, Rechtmehring, DE;
Karsten Schwuchow, Wasserburg, DE;
Achim Hofmann, Polling, DE;
Thomas Kapfelsperger, Mühldorf, DE;
Sebastian Bierwirth, Rechtmehring, DE;
Karsten Schwuchow, Wasserburg, DE;
Achim Hofmann, Polling, DE;
Thomas Kapfelsperger, Mühldorf, DE;
TRW Airbag Systems GmbH, Aschau am Inn, DE;
Abstract
A gas generator housing part is produced of a thin-walled tube having a wall thickness which amounts to a maximum of 10% of a tube external diameter and a minimum tensile strength which amounts to at least approximately 800 N/mm, and a connecting piece having an external diameter which amounts to between 15% and 40% of the tube external diameter. After aligning the connecting piece radially to the tube such that an end face of the connecting piece faces an outer face of the tube, the tube and the connecting piece are joined by friction welding. A maximum welding time amounts to less than 1 second, preferably less than 0.3 second and a friction depth amounts to less than 80% of the wall thickness of the tube.