Air - to - air heat exchanger
CA 1192901 A · Owner: Marriner, Raymond E. · Inventors: Marriner, Raymond E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention permits the transfer of heat from the exhaust air of a building to incoming fresh air by directing counter flowing air currents on either side of a membrane. Movement of air is controlled by remotely mounted fans and dampers. The basic principle of the exchange of heat from the air on one side of a membrane to the air on the other side is common to many air-to-air heat exchangers and it is accomplished by directing the flow of air over a large area of membrane.
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 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2002.
- 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.