Apparatus and method for inflating an inflatable vehicle occupant restraint
CA 2134532 C · Owner: Trw Vehicle Safety Systems Inc. · Inventors: Blumenthal, Jack L.; Staudhammer, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inflator assembly (10) for inflating an inflatable vehicle occupant restraint (12) includes a pressure vessel (14) with a storage chamber (18) containing a combustible mixture of gases. An ignitable material (122) when, burning, increases the pressure of the mixture of gases by igniting the mixture of gases. The mixture of gases is released to exit the storage chamber (18) at a first flow rate and subsequently at a second, greater flow rate. A first gas outlet opening (172) is provided in the pressure vessel (14) when the inflator assembly (10) is actuated and a second gas outlet opening (186) is subsequently provided in the pressure vessel (14) at a predetermined time. A diffuser (176) …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 27, 1994 and granted December 2, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.