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Canadian application, no grantCanada

Rolling mill roll stand

CA 2271189 A1 · Owner: Morgan Construction Company · Inventors: Shore, T. Michael; Woodrow, Harold E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A housingless roll stand has a pair of work rolls supported between bearing chocks for, rotation about parallel axes. The bearing chocks are mechanically engaged by nuts which in turn are, threadedly engaged by opposite hand screw segments on spindles. The spindles serve both to effect, symmetrical roll parting adjustments and to provide a short stress path loop for absorbing roll, separating forces during rolling. The nuts and associated adjusting spindles are separable from the, bearing chocks thus enabling them to remain as permanent on line fixtures when making roll, changes.

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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

  • Filed May 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1999
GrantedNo grant recorded
Term endedMay 6, 2019
Patent numberCA 2271189 A1
Classification (IPC)B21B13/06 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 6, 1999Term endedMay 6, 2019

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.