Patent Yard Sign in
Expired Canadian patentCanada

Apparatus for conditioning and dispensing particulate material

CA 1138390 A · Owner: Armstrong Jones Ltd. · Inventors: Guha, Pronob K.

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

This invention relates to an apparatus for conditioning particulate material and subsequently dispensing the conditioned particulate material. In previous designs the conditioning auger and dispensing, auger have been arranged coaxially with the result that there is a relatively short conditioning zone. The apparatus of the present invention provides a conditioning zone disposed above the dispensing zone the conditioning, zone having a substantially larger capacity than the dispensing zone. The conditioning auger is mounted in the conditioning zone and the dispensing auger is mounted in the dispensing zone directly below the conditioning auger.

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 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 25, 1981
GrantedDecember 28, 1982
Term endedDecember 28, 1999
Patent numberCA 1138390 A
Classification (IPC)B05B3/02 +1 more

Timeline

Timeline From CIPO dates

198219841986198819901992199419961998Application filedFeb 25, 1981Patent grantedDec 28, 1982Term endedDec 28, 1999

Sources & verification

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