Doughnut making machine and process for moving objects through a frying tank
CA 1266799 C · Owner: Belshaw Bros. Inc. · Inventors: Belshaw, Thomas E.; Woodworth, Frederick G.; Wilke, Wilbur D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A small, inexpensive doughnut fryer has a conveyor and separate elevator that are driven from the same shaft without interference with one another. Sprockets for driving the elevator are recessed to receive rods from the conveyor. The entire conveyor assembly is provided with a quick release coupling to the power supply. A method and apparatus for moving objects to be fried through a hot frying liquid by producing intermittent waves and eddies in the liquid in the desired direction of travel to propel the objects in a straight line.
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 March 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 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.