Method and apparatus for producing completely recrystallized metal sheet
CA 1069669 A · Owner: Hunter Engineering Company · Inventors: Hickam, Jim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF THE INVENTION:, A method and apparatus for producing extremely fine-grained aluminum sheet in a casting machine having a pair of parallel casting rolls, a pouring tip on the entrance of the rolls and means for driv-, ing the rolls. Molten aluminum is poured through the tip into the space between the rolls, and the rolls are driven at a speed such that solidification of the metal is completed at a point ahead of the centerline of the rolls, and the frozen metal is then hot-rolled down to the thickness of the roll spacing, During this hot-rolling the metal is heavily stress-, ed internally by being reduced at least 33% of the thickness at the point of solidification, and this destroys the …
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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 January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
- 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.