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Expired Canadian patentCanada

Log core steady rest

CA 1330416 C · Owner: Premier Gear & Machine Works · Inventors: Young, Robert C.; Crabtree, Wayne L.

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 mechanism for adjusting the orientation of the arms that carry the backup rollers in a core steady rest. The rollers are rendered fixed relative to each other and relative to the arms. The arms are adjusted toward and away from the log as necessary to maintain equal contact of the two rollers on the log. The adjustment is preferably accomplished by mounting the arm ends opposite the rollers to an eccentric that pivots the arm ends in an arc toward the log.

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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 June 28, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 1989
GrantedJune 28, 1994
Term endedJune 28, 2011
Patent numberCA 1330416 C
Classification (IPC)B27B1/00 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 25, 1989Patent grantedJune 28, 1994Term endedJune 28, 2011

Sources & verification

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