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. 13, 2014
Filed:
Apr. 15, 2011
Gérald Prima, Landrevarzec, FR;
Sébastien Kermarrec, Briec, FR;
Maxime Lejeune, Gouezec, FR;
Gildas Clech, Plougastel-Daoulas, FR;
Gérald Prima, Landrevarzec, FR;
Sébastien Kermarrec, Briec, FR;
Maxime Lejeune, Gouezec, FR;
Gildas Clech, Plougastel-Daoulas, FR;
Autoliv Development AB, Vargarda, SE;
Abstract
A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge. When in an initial state, the cap is configured to go under the pressure of the combustion gases from second charge to the permanent state, in which the cap is broken to keep hole opened permanently and allow the combustion gases from said second charge to go via the hole kept permanently open from the second chamber to the first chamber, where this combustion gases induce the combustion of charge.