Shell liner assembly
CA 1298260 C · Owner: Kjos, David M. · Inventors: Dugger, Charles B. Jr.; Kjos, David M.
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 liner assembly for the cylindrical shell of an ore grinding machine is disclosed, which is arranged in a series of axial sections, each being made up of individual liner segments that cover substantially the entirety of the inner cylindrical surface of the shell. Each axial section is generally annular in configuration and is formed with a plurality of ramp-like surfaces that extend circumferentially and define sequential steps, with the lowest point of one ramp-like surface adjacent the highest point of another. The ramp-like surfaces of each axial section are circumferentially staggered with respect to the ramp-like surfaces of an adjacent annular section, …
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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 March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
- 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.