Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods
CA 2115503 C · Owner: Maschinenfabrik Gustav Eirich · Inventors: Durr, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a procedure for continuous supply of heat into electrically conductive bulk, goods by exploiting tire electrical resistance thereof in an oven chamber with an inlet opening and, a drawing-off apparatus for continuous throughput of bulk goods wherein , during the throughput, of material electrical energy in the material is conducted and to an , apparatus for continuous, supply of heat Into electrically conductive bulk goods by exploitation of the electrical resistance, thereof, in an oven chamber (1) with an inlet opening (15) and a continuous drawing-off apparatus, (9) for the bulk goods and with at least one pair of electrodes (14 16, 19) , arranged one above, …
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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
- Filed February 11, 1994 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2016.
- 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.