Patent Yard Sign in
Expired Canadian patentCanada

Track drive for the traction engine of a monorail conveyor to be used in mining

CA 1068552 A · Owner: Maschinenfabrik Scharf G.M.B.H. · Inventors: Farkas, Laszlo

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 track drive for the traction engine of a monorail conveyor used in mining is disclosed which is of improved load stability and has improved safety features. The improved track device is characterized in that each toothed drive wheel comprises an elongated downwardly extending hollow axle forming a double-acting lifting cylinder into which a station, ary piston is inserted which at its lower end, is connected with the transmission housing. The piston rod is provided in its lower section with control lines and in its upper section with a disc piston. The piston rod is axially displaceable and torque-transmitting inside an elongated, downwardly extending, rotatably driven hollow shaft which, …

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 December 25, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 25, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedDecember 25, 1979
Term endedDecember 25, 1996
Patent numberCA 1068552 A
Classification (IPC)B61C11/00 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedDec 25, 1979Term endedDec 25, 1996

Sources & verification

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