Corn furnace
CA 2133386 A1 · Owner: Charest, Gilles · Inventors: Charest, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A corn furnace comprises a hopper for storing corn to be burned, and a combustion chamber in which corn is burned in a pot of fire to produce heat. An endless screw supplying corn from the dispensing, bottom of the hopper to the combustion chamber comprises a lower proximate end for receiving corn from the hopper, a higher distal end for discharging corn in the combustion chamber through an inclined conduit, an elongate tubular member extending from the proximate to the distal end, and a generally helicoid blade rotatively mounted in the tubular member for conveying corn through that tubular member. The rotative helicoid blade is formed with a sharpened distal outer helical edge section. An …
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
- Filed September 30, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2016.
- 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.