Methodology and apparatus for supply of reactant fluids to and purging of product and inert fluids from cells of fuel cell stack
CA 2377445 A1 · Owner: Tvn Systems, Inc. · Inventors: Nguyen, Trung Van
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel cell system made up of a plurality of fuel cells (249). Each cell includes a fuel inlet (261,263,265), an oxidant inlet (262,264,266) a fuel , side product outlet (253,254,255) and an oxidant side product outlet (256,257,258). A common fuel supply line (251) is provided for the fuel inlets (261,263,265). A common oxidant supply line (252) is provided for the oxidant inlets (262,264,266). A common product purging mechanisms (240) is coupled to the outlets (253-258) for purging the same of unused fuel unused oxidant, fuel side product and oxidant side product. The product purging mechanism (240) includes valving structure operable to selectively and independently open the …
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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 April 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2023.
- 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
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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.