Steel mill rolls
CA 1048310 A · Owner: Canron Inc. · Inventors: Payne, Frederick G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A laminated steel mill roll consists of a core member a reversible replaceable shell member and a retaining member. The core member has a radially-outwardly extending shoulder while the shell member has two symmetrically-disposed radiallyinwardly extending shoulders, the core member shoulder engaging one shell member shoulder for location and retention of the shell member on the core member, and the retaining member fastened to the core member engaging the other shell member shoulder. The shell member can be made as two similar reversible replaceable portions, or as a plurality of such portions at least the two endmost being similar to one another giving even …
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 February 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 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.