Patent Yard Sign in
Expired Canadian patentCanada

Method of and apparatus for dewatering granulated-slag slurry

CA 1112876 A · Owner: Sidmar Maritieme Staalnijverheid N.V. · Inventors: Monteyne, Guido

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

Molten slag is granulated with water to produce a granulated-slag/water slurry that is fed into the bottom of a horizontally extending foraminous drum. This drum has radially inwardly extending vanes and is rotated to lift up the granulated slag and separate it from the water, discharging the slag onto a conveyor belt for storage or further use. The water running out of the slag slurry is recirculated for use in the initial granulation step for the molten slag stream.

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 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 18, 1979
GrantedNovember 24, 1981
Term endedNovember 24, 1998
Patent numberCA 1112876 A
Classification (IPC)C04B5/02 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedApril 18, 1979Patent grantedNov 24, 1981Term endedNov 24, 1998

Sources & verification

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