Combustion equipment
CA 1294534 C · Owner: Uno, Katsuhiko · Inventors: Inoue, Shojiro; Uno, Katsuhiko; Ishikawa, Katsuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combustion equipment to be employed for heating for domestic use or the like is provided with an air control cylinder having a closed bottom surface inwards of an inner flame cylinder, and an outer control cylinder inwards of a vaporizing portion. The air control cylinder is divided into plural stages to form a through aperture connecting said stages with each other in a vertical direction, and the outer control cylinder is formed with through holes. In this way radical deterioration of the CO/CO2 characteristic can be prevented. Also the, equipment has a large adjustable range of combustion volume, is safe and is comfortable in use.
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 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.