Method of storing thermal energy in a ground storage device
CA 1114700 A · Owner: Sunroc Energy Kb · Inventors: Platell, Ove; Lilliehook, Folke; Wikstrom, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of storing thermal energy in a ground storage device a large volume, including a ground body for circulating water in a circuit comprising passages in said body, there are used heat-absorbing and heat-emitting means. The heat-absorbing means has the form of a large natural or, artificial water-mass, such as a lake sea-inlet or the like, whose water is heated to above a given temperature during warm periods of the year - is charged to the ground storage device. The supply of water to said ground storage device is interrupted when there is equilibrium between the temperature of the water supplies and the temperature of the ground storage device.
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 1998.
- 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.