Electric heater
CA 1190579 A · Owner: Pelonis, Kosta · Inventors: Pelonis, Kosta
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new type of electric heater is described. The heater includes a housing in which is mounted a generally planar core of semi-conductor material formed with a multiplicity of apertures. Conductive coating are formed on opposing faces of the core to permit a heating current flow to be generated in the core by applying a voltage difference to the conductive coatings. A fan mounted within the housing directs an air flow through the core apertures to draw heat from the core. The semi-conductor material is selected to have a high positive resistance-temperature coefficient which prevents the core from heating to above 200°C when conventional line voltages are applied to the core and which …
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 July 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 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.