Room heating method and apparatus
CA 1093042 A · Owner: Grudeborn, Lars-Ove · Inventors: Grudeborn, Lars-Ove
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To heat a room preheated air is ejected, into the room through a narrow orifice provided close to the ceiling at one edge thereof. The heating action is controled by means of a valve controlling the current of air supplied to said orifice. The air ejected into the room heats a ceiling area serving as a heat radiating surface the width of which, as measured from the orifice in the direction of the ejected air stream varies with, the setting of the valve.
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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 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.