Apparatus for demonstrating and studying the operation of a fuelcell
CA 1305515 C · Owner: Larminie, James · Inventors: Larminie, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises five main components: two catalysed electrodes (1 and 2), and three plastics parts a top tube (3), a, spacer (4) and a bottom tube (5). The apparatus may be partially immersed in a liquid mixture (11) of fuel and electrolyte eg, methanol and potassium hydroxide, 80 that the liquid mixture (11) is able to freely circulate in contact with the underside of the upper electrode (1) and both sides of the lower electrode (2) whilst the top side of the upper electrode (1) is exposed to the air. The apparatus thus operates as a fuel cell in which the methanol is oxidized by oxygen from the air to produce carbon dioxide, water and electrical energy. The apparatus can be used …
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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
- Granted July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
- 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.