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Expired Canadian patentCanada

Apparatus for adjusting radial displacement from rotatable shaft

CA 1300407 C · Owner: York, Ronald Arthur · Inventors: York, Ronald Arthur

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

Abstract of the Disclosure Apparatus for adjusting the radial displacement of a member, such as a tool bit, from a rotatable shaft such as a, boring bar used in a boring operation. An aperture in the boring bar supports the tool bit, allowing it to protrude radially outwardly from the boring bar. An adjustable feed mechanism in the aperture adjustably feeds the tool bit along the aperture. An adjusting mechanism couples with and facilitates adjustment of the feed mechanism. A calibrating mechanism on the adjusting mechanism, and on the boring bar, calibrates adjustment of the feed mechanism by the adjusting mechanism.

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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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
  • 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 26, 1989
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300407 C
Classification (IPC)B23B51/00

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 26, 1989Patent grantedMay 12, 1992Term endedMay 12, 2009

Sources & verification

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