Process and apparatus for charging a shaft furnace
CA 1269832 C · Owner: Bernard, Gilbert · Inventors: Lonardi, Emile; Bernard, Gilbert; Solvi, Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To ensure the vertical and symmetrical fall of the charging material from a hopper onto a distribution spout the discharge valve of the hopper and the valve of a chamber feeding material to the hopper are regulated in such a way as to form a barrage in the base of the hopper. To control the formation of this barrage and ensure that it will be maintained throughout a charging phase the hopper and the chamber are weighed separately, signals being produced for the control of the dosing valves. In a preferred embodiment of an installation for the performance of this process the hopper (70) is rotated in order to reduce the segregation of the particles.
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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 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
- 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.