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Expired Canadian patentCanada

Toolholder and method of releasably mounting

CA 1288227 C · Owner: Kennametal Inc. · Inventors: Von Haas, Rainer; Tack, Hans Wilhem; Heaton, James W.

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

The present invention relates to an improved toolholder for releasably mounting on a tool support member. The toolholder is provided with a forward end for receiving a tool and a shank extending from the forward end for being releasably received in a bore of a tool support member. The shank has a first section for interference fitting with the bore of the tool support member when a rearwardly facing face on the toolholder is in abutment with a forwardly facing surface on the tool support member. The shank has a second section, rearwardly of its first section for, expansible abutment with the bore of the tool support member.

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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 September 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1987
GrantedSeptember 3, 1991
Term endedSeptember 3, 2008
Patent numberCA 1288227 C
Classification (IPC)B23B31/10 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedNov 18, 1987Patent grantedSep 3, 1991Term endedSep 3, 2008

Sources & verification

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