Patent Yard Sign in
Expired Canadian patentCanada

Method of and apparatus for manipulating rod-shaped articles of the tobacco processing industry

CA 1324053 C · Owner: Dahlgrun, Rolf · Inventors: Schmidt, Rolf; Dahlgrun, Rolf

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 method of and an apparatus for delivering successive filter rod sections of a series of such sections onto the upper reach of an endless belt conveyor whereon the sections form a single file of coaxial articles. A first rotary drum-shaped conveyor has axially parallel peripheral flutes which draw successive filter rod sections from a magazine and move them at right angles to their axes to a transfer station where each oncoming section is brought to a halt in the flute of a stationary ramp. A second rotary drum-shaped conveyor has peripheral pushers which engage the rear end faces of successive sections in the flute of the ramp and move the entrained sections axially toward and onto 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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
  • 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 11, 1987
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1324053 C
Classification (IPC)A24C5/32 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 11, 1987Patent grantedNov 9, 1993Term endedNov 9, 2010

Sources & verification

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