A valve assembly for opening and closing a fuel line
CA 2489894 A1 · Owner: The Linden Shield Limited · Inventors: Linden, Sean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a temperature-sensitive safety valve assembly. The valve assembly comprises a first pressurised fluid region which , region has a first outlet, and a second pressurised fluid region which region , has a heat-sensitive sealing means. A valve between the first and second regions is adapted to be actuated by the pressure of a first pressurised fluid in the first region against biasing means to open the outlet. The heatsensitive sealing means in the second region fails at high temperature so as to de-pressurise the second region, thereby actuating the valve to move under the biasing means to close the first outlet and seal the first region. The valve …
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 June 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2025.
- 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.