Single revolution ice maker
CA 1289370 C · Owner: Guess, Ronald W. · Inventors: Guess, Ronald W.; Chesnut, Paul B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ice making apparatus utilizes a single thermostat for energizing and de-energizing a mold heater which is utilized to free ice bodies from a mold. The thermostat has a narrow operating range so that the heater is de-energized substantially immediately after the ice body is free from the mold to enable harvesting of the ice bodies to be completed in a single revolution of an ejector blade. The short time during which the heater is on allows a subsequent freezing cycle to be completed faster and the single revolution permits the harvesting cycle to be completed faster in order to increase ice production of the ice maker.
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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.