Convection blower for conventional electric ovens
CA 1262466 C · Owner: Zephyr Convection Cooking Systems Company · Inventors: Thorne, Kenneth W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An energy-saving readily removable, portable electric, blower for retrofit to conventional 230 volt electric ovens is placed on the oven floor between the heat elements to circulate air through the oven in various directions. One wire of the 115 volt blower motor is coupled by a wire protecting spring metal clip to an element opening in the oven wall for its neutral electrical connection, the second motor wire is coupled to an element conductor so that the blower motor is energized by an oven selector switch. The use of this convection blower can be shown to annually save an average of 350 kilowatt-hours per household.
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 October 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
- 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.