Cooling and heating device using a solid-gas reaction
CA 2107215 C · Owner: Neveu, Pierre · Inventors: Neveu, Pierre; Castaing, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cooling and heating device using a chemical reaction comprising at least four reactors (R1 R2, R3, R4), each containing a salt capable of chemically reacting with a gas an enclosure (3)for receiving gas from the reactors and an enclosure (E) for conveying gas to the reactors. The device is arranged so that during the chemical reaction, two reactors are at the same higher pressure level while two reactors are at the same lower pressure level. According to the invention the device also comprises a heat-transporting fluid circuit (45) for transferring heat between the reactors operating at the same pressure level.
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 February 10, 1993 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2015.
- 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.