Heating element for heating boiling plates, hotplates and the like
CA 1209632 A · Owner: E.G.O. Elektro-Gerate Blanc U. Fischer · Inventors: Wilde, Eugen; Doerner, Leonhard; Schreder, Felix
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radiant heating element (11) for heating a glass ceramic plate (12) carries on a circular insulating support (15) heating elements (19 20, 21) in the form of wire coils fixed thereto which are arranged in the form of two parallel spiral paths. Two separately switchable heating conductors (19, 21) are successively arranged in one spiral path, whilst the third heating conductor (20) is positioned alone in the other spiral path. The heating conductors have different power levels and can be switched to different power stages by a seven-timing switch. (Fig 1).
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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- 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.