Method of heating a drying furnace for use in hot air- circulating type coating
CA 1265926 C · Owner: Katoh, Kaname · Inventors: Tachi, Hideo; Katoh, Kaname; Tokushima, Yasuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of heating a drying furnace for use in hot air-circulating type coating drying in which a hot air is supplied, under circulation, to the inside of the furnace thereby heating and drying coated articles, wherein heating for the furnace is conducted through a direct heating type hot air-circulating path in which the air inside of the furnace sucked from a return duct is heated directly by a combustion gas from a burner and supplied under circulation from a supply duct again to the inside of the furnace while conducting a step of increasing the temperature by preheating the inside of the furnace whereas, heating for the furnace is conducted through an indirect heating type hot air …
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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 February 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 2007.
- 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.