Apparatus for feeding charge to an electric smelting furnace
CA 1051961 A · Owner: Elkem-Spigerverket A/S · Inventors: Kongsgaarden, Ole A.; Bruff, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for feeding charge to an electric smelting furnace is disclosed. The apparatus comprises a single feed hopper and a single feed tube to a separation box from whence charge can be distributed in the furnace. Segregation of the charge being fed is thereby substantially reduced by a system of automatically operated valves.
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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
- 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.