Air bag in air bag equipment
CA 2021247 C · Owner: Takata Kabushiki Kaisha · Inventors: Takamiya, Toshio; Nakajima, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The air bag 3 according to this invention is furnished with exhaust outlet 6 to discharge internal gas, and the material 8 with heat-shrinking property is provided, which blocks at least a part of the exhaust outlet 6 in normal case and shrinks to such direction as to increase the passage area of said exhaust outlet when reaction gas is introduced from the inflator 2. Therefore, the passage area of the exhaust outlet 6 is relatively narrowed down by the heat-shrinking material 8 in normal case. For this reason it is, rapidly expanded by reaction gas from the inflator 2. Thereafter the material 8 is shrinked by the heat of reaction gas and the passage area of exhaust outlet 6 is increased. …
Read the whole patent
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 July 16, 1990 and granted November 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2012.
- 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.