Ground heat exchanger
CA 1061773 A · Owner: Quintal, Yvan · Inventors: Quintal, Yvan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ground heat exchanger adapted to be buried in the ground and to b used in association with a heat pump system for heating and cooling. The exchanger includes a heat conducting metal plate adapted to be vertically buried in the ground and carrying a fluid circulating coil adapted to be connected to the circuit of the heat pump system. The ends of the plate are each movably inserted into a corresponding slit of an upright tube filled with a heat conducting grease. Weights compress the grease within the tubes and cause its ejection through apertures of the tubes along both surfaces of the plate, so as to fill any voids between the plate and the ground and to also fill any new voids which may …
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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- 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.