Drive for shell type rolls
CA 1192059 A · Owner: Usm Corporation · Inventors: Leech, Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drive for a variable crown shell roll in which a driven pinion provides rotary motion to the shell I roll through the teeth of a first ring year which is loosely mounted so as to be rockable about the pinion to accommodate deflection of a second ring gear flexibly carried by the roll shell and which meshes with the second ring gear.
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 20, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2002.
- 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.