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Expired Canadian patentCanada

Precision work holder for machine tools

CA 1165339 A · Owner: Argenbright, Carl T. · Inventors: Argenbright, Carl T.

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 work holder for precision positioning and movement of a workpiece (20) relative to a machine tool comprises a base (100) a pair, of spaced stocks (200, 300) mounted on the base a spindle assemblies, (210,310) supported on each of the stocks for rotation about a common axis, a chuck (246, 346) supported on each of the spindle assembly (210 310) for clamping the workpiece (20) therebetween and adjustable, mounting means (236 - 272 336 - 372) on each of the spindle assemblies (210, 310) for permitting movement of each of the chucks (246 346), transversely of the axis. A driveshaft (406) and gearing (402 408) is provided for imparting, rotation to one spindle assembly (210). A crank (422) is …

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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 April 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2001.
  • 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 4, 1981
GrantedApril 10, 1984
Term endedApril 10, 2001
Patent numberCA 1165339 A
Classification (IPC)B23Q3/00

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedMay 4, 1981Patent grantedApril 10, 1984Term endedApril 10, 2001

Sources & verification

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