Fireplace heat intensifier
CA 1062570 A · Owner: Bergs, Andrew · Inventors: Bergs, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention consists of a device which is inserted into the top of a fireplace for the purpose of increasing its heating capacity. It consists of a "U" shaped tube of rectangular cross-section, having a flat rear section with diverging arms which bend outwardly at their ends. To the end of one arm is attached a casing containing a blower or fan which blows cold or room temperature air into said tube wherein it is, heated, and passed out through the other arm which is equipped at its end with a louver. The blower and louver are interchangeable between the said arms. The U-shaped tube is provided with a plurality of diamond shaped and round ducts passing through it, so that the combustion …
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 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 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.