Abstract: A gas generator for air bags having a container holding a combustible gas mixture and fitted with a closure which opens into a combustion chamber fitted with a gas outlet in which the gas mixture is ignited by an ignition device. To provide a fast-reacting ignition device and generate a controllable flow of pressurized gas at a relatively low temperature, the container is mainly filled with a pressurized inert gas and contains 0.1 to 2.0% vol. of a hydrocarbon and 0.5 to 10% vol. of a gaseous oxidizing agent. On being actuated, the ignition device opens the container closure, ignites the gas mixture flowing into the combustion chamber and maintains combustion by the continuous supply of energy.
Type:
Grant
Filed:
November 23, 1999
Date of Patent:
October 9, 2001
Assignees:
Autoflator AB, L'Air Liquide SA
Inventors:
Dan Ericsson, Pierre Karinthi, Michel Gastiger
Abstract: Novel polyimide and polyamide-imide gas separation membranes and the process of using such membranes to separate one or more gases from a gaseous mixture is disclosed. The polyimides and polyamide-imides are formed from a blend of diamines containing the ester derived from 1,3-diamino-2-hydroxypropane.
Type:
Grant
Filed:
May 5, 1993
Date of Patent:
May 10, 1994
Assignees:
E. I. Du Pont de Nemours and Company, L'Air Liquides, SA
Abstract: Novel aromatic polyimide gas separation membranes and the process of using such membranes to separate one or more gases from a gaseous mixture is disclosed.
Type:
Grant
Filed:
January 13, 1992
Date of Patent:
January 12, 1993
Assignees:
E. I. Du Pont de Nemours and Company, L'Air Liquide, SA