Patent Yard Sign in
Expired Canadian patentCanada

Chop saw linkage system

CA 1232512 A · Owner: Black And Decker, Inc. · Inventors: Kaiser, Horst; Herting, Rainer

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 chop saw pivotably mounted for movement between a raised rest position and a lowered operational position having a motor, driven saw-blade rotatably supported about a shaft with a saw, housing partially encasing the saw-blade and a swinging blade guard which covers the exposed segment of the saw-blade when the saw is in the rest position. When the saw is lowered to its operational position, a linkage system comprising four effective levers and four hinges clears the blade guard thereby exposing, the saw blade to the work piece. To accommodate changing the saw blade while the saw-unit is in its rest position the effective, length of one of the levers can be temporarily reduced thereby, …

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 February 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 1984
GrantedFebruary 9, 1988
Term endedFebruary 9, 2005
Patent numberCA 1232512 A
Classification (IPC)B27B5/00 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJune 11, 1984Patent grantedFeb 9, 1988Term endedFeb 9, 2005

Sources & verification

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