Horizontal tapping furnace
CA 1293376 C · Owner: Wunsche, Edgar Richard · Inventors: Wunsche, Edgar Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
HORIZONTAL TAPPING FURNACE", ABSTRACT OF THE DISCLOSURE The tapping passage of a metallurgical furnace is disposed generally horizontally in a lower region of the furnace wall structure below the upper level of the liquid metal; a closure member is pivotally movable relative to an outer end of the tapping passage to open and close access to the passage; the closure has a gas injection nozzle for injecting air under low pressure into the tapping passage to remove temporary plugging material in said passage in preparation for discharge of the liquid metal.
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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
- 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.