Process and an apparatus for casting steel ingots
CA 1059725 A · Owner: Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) · Inventors: Tarmann, Rainer; Hopf, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and an apparatus for casting steel ingots wherein, the steel from a ladle is cast under vacuum through the lid of a container which can be evacuated, into a mould, and wherein covering powder or antipiping compound, respectively, is evenly applied upon the surface of the molten steel in the mould while the vacuum is maintained. By this procedure a cast ingot having fewer inclusions of anti-piping compound and prematurely solidified material is obtained.
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 August 7, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 7, 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.