Patent Yard Sign in
Expired Canadian patentCanada

Clamping mechanism for cutting insert

CA 1104331 A · Owner: Kennametal Inc. · Inventors: Erickson, Robert A.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A toolholder for holding a cutting insert having an axial hole is disclosed having a pocket therein for seating of the insert and a hole in the toolholder extending transversely through the bottom of the pocket. A pin having a head for engaging the insert and a pivotal shoe member cooperate in the hole such that, as the rotatable pin is tightened the shoe, member forces the head of the pin to tilt toward a side wall of the pocket and clamp the insert to the toolholder.

Read the whole patent

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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 4, 1980
GrantedJuly 7, 1981
Term endedJuly 7, 1998
Patent numberCA 1104331 A
Classification (IPC)B26D1/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Application filedDec 4, 1980Patent grantedJuly 7, 1981Term endedJuly 7, 1998

Sources & verification

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