Patent Yard Sign in
Expired Canadian patentCanada

Portable sheet bending brake

CA 1288675 C · Owner: Break, Douglas G. · Inventors: Break, Douglas G.

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

Abstract of the Disclosure A sheet bending brake comprising a plurality of Cshaped frame members that support a first member. The first member has a clamping surface. A second member is hinged to the first member and has a bending surface. A plurality of bars are pivoted to the frame members and support an anvil member that extends longitudinally of the first member. A plurality of eccentric cams are secured on a cam support shaft. Each bar is generally C-shaped in cross section and a cam is positioned between the upper and lower flanges thereof. A handle is secured to the shaft such that when the handle is operated, the eccentric cams are rotated to move the bars and in turn, the anvil …

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 September 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 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.
FiledOctober 17, 1986
GrantedSeptember 10, 1991
Term endedSeptember 10, 2008
Patent numberCA 1288675 C
Classification (IPC)B21D5/04

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 17, 1986Patent grantedSep 10, 1991Term endedSep 10, 2008

Sources & verification

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