Heating element
CA 1318558 C · Owner: Nippon Steel Corporation · Inventors: Suzuki, Ryoichi; Kondo, Hiroyuki; Mizunuma, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a heating device comprising a heat generating portion composed of a mixture of at least of ferric oxide, cupric oxide and trilead tetroxide powder and powder of silicon and/or silicon-iron alloy, a firing portion disposed contiguous to said heat generating portion and constituted by mixing boron or aluminum powder with at least one of ferric oxide, cupric oxide, barium peroxide and strontium peroxide powder, and an igniting portion which is situated adjacent to said firing portion and which ignites said firing portion. This heating device is capable of quick and easy heating of an object to be heated with no need of using any extraneous heating means. The …
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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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 2010.
- 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.