Burner exhaust gas collection assembly for a catalytic reformer
CA 2287288 C · Owner: Ballard Generation Systems Inc. · Inventors: Sterenberg, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalytic reformer (10) includes a reformer vessel (14) defining an interior plenum (15) housing at least one reactor tube (30 130) assembly having a , catalyst bed (135). The reformer also includes a burner gas inlet (16) for providing hot burner gas to heat the reactor tubes (30) and a burner gas , outlet (60). A burner gas guide sleeve (20) is disposed substantially coaxially around at least a portion of the reactor tube assembly (30) defining an annular burner gas passage (22). A burner exhaust gas collection assembly (64) connects the burner gas guide sleeve (20) to the burner gas outlet (60).
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 April 15, 1998 and granted October 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2020.
- 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.