Fuel processor temperature monitoring and control
CA 2310193 A1 · Owner: General Motors Corporation · Inventors: Clingerman, Bruce J.; Keskula, Donald H.; Doan, Tien M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a fuel cell system fuel processor, the temperature of a gas stream is monitored between a discharge end of a heater and the inlet of a catalytic reactor. The monitored temperature is compared to one or more preselected values. In one embodiment the method, of the invention monitors one or more of the following conditions: a relatively low temperature value of the gas stream; a relatively high temperature value of the gas stream; and a rate-of-change of monitored temperature. In a preferred embodiment the rate of temperature change, is monitored to prevent the occurrence of an unacceptably high or low temperature condition. Here at least two, temperatures of the recirculating gas stream …
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 May 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2022.
- 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.