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Expired Canadian patentCanada

Forming machine including drive mechanism having rack and gear synchronization

CA 1214956 A · Owner: Anderson-Cook, Inc. · Inventors: Roth, Robert G.

CIPO record

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

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Abstract From the Canadian patent

A forming machine (10) disclosed has an improved drive mechanism (28) for driving a pair of slides (20,22) mounted on upper and lower bases (12 14) so as, to provide forming of a workpiece for forming racks (24 26) mounted on the slides. Upper and lower hydraulic motors (30,32) respectively drive the pair of slides whose movement is coordinated by a rotatable synchronizing gear (48) and upper and lower synchronizing racks (50,52). The synchronizing gear (48) is mounted by a connecting portion of the machine between the slides and is meshed with the synchronizing racks (50, 52) which are mounted on the slides by wedge adjusters (53) to adjust backlash of the synchronizing racks with the …

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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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1984
GrantedDecember 9, 1986
Term endedDecember 9, 2003
Patent numberCA 1214956 A
Classification (IPC)B23F1/00 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedFeb 14, 1984Patent grantedDec 9, 1986Term endedDec 9, 2003

Sources & verification

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