Method and means for applying a heat exchanger in a drill hole for the purpose of heat recovery and storage
CA 1268758 C · Owner: Mogensen, Palne · Inventors: Mogensen, Palne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and a means for applying a heat exchanger in a drill hole in rock, loose soils or the like for the purpose of heat recovery or storage, achieving a more efficient heat transfer between the defining surface of the drill hole and a heating medium contained in the heat exchanger, wherein at least one heat-exchanging element is lowered into the drill hole and expanded in substantially radial direction so that the heat-exchanging element is thus caused at least partially to be substantially in contact with the defining surface of the drill hole.
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
- Granted May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.