Patent Yard Sign in
Expired Canadian patentCanada

Tobacco/paper sorter method and apparatus

CA 1053530 A · Owner: Amf Incorporated · Inventors: Hansen, Charles D. (Jr.)

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

The method and apparatus therefor for separating paper particles from reclaimed shredded tobacco comprising propelling shredded tobacco with paper particles randomly mixed therein into a path of flight above an endless belt conveyor and in the direction of movement of the conveyor so that the shredded tobacco showers down and forms a blanket on the conveyor and the longer flying paper showers down atop the tobacco blanket, the conveyor moving the tobacco past scanning means and propelling the tobacco along a path of flight to receiver means the scanning mean detecting paper particles atop the tobacco, and pneumatic reject means responsive to the scanning means for diverting detected paper …

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 May 1, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 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—
GrantedMay 1, 1979
Term endedMay 1, 1996
Patent numberCA 1053530 A
Classification (IPC)A24C5/36 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 1, 1979Term endedMay 1, 1996

Sources & verification

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