Patent Yard Sign in
Expired Canadian patentCanada

Tube cutting apparatus

CA 1160557 A · Owner: Borzym, John J. · Inventors: Borzym, John J.

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?-144, IMPROVED TUBE CUTTING APPARATUS ABSTRACT, A ram driven tube cutting apparatus of the double cut type in which sections of tubing are successively severed from a continuous length thereof by a notching cut followed by a severing cut includes, improved mechanism for clamping the tubing during the cutting process. A pair of opposed, complemental die jaws are mounted on slides controlled by spaced cam followers carried by the slides. A reciprocating wedge cam engages and forces the cam followers apart to move the slides thereby closing the jaws on the tubing. One of the cam followers comprises a roller mounted on an eccentric shaft which may be selectively rotated to adjust the …

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 January 17, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 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.
FiledDecember 16, 1980
GrantedJanuary 17, 1984
Term endedJanuary 17, 2001
Patent numberCA 1160557 A
Classification (IPC)B23D21/00 +1 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedDec 16, 1980Patent grantedJan 17, 1984Term endedJan 17, 2001

Sources & verification

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