Rotary valve for a metallurgical vessel
CA 1339523 C · Owner: Didier-Werke Ag · Inventors: Hintzen, Ullrich; Bruckner, Raimund; Luhrsen, Ernst
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 rotary valve for a substantially vertical tapping of liquid metal melt from a metallurgical vessel with a rotationally symmetrical rotor serving as a valve body which is arranged in a refractory stator having a discharge passage so as to be rotatable about a substantially horizontal axis and has a flow passage which by rotation with, respect to the stator may be opened by connecting the inlet, opening of the discharge passage of the stator to the outlet opening of the discharge of the stator and may be closed again by interrupting this connection, the outlet opening of which flow passage is arranged in the peripheral surface of the rotor whereby, the stator and …
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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 November 4, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2014.
- 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.