Patent Yard Sign in
Expired Canadian patentCanada

Process and equipment for the thickening of slurries

CA 1072453 A · Owner: Heves Megyei Tanacsi Epitoipari Vallalat · Inventors: Takats, Ferenc; Kovacs, Marton; Varga, Lajos

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 present invention provides a process for the concentration of a slurry which comprises passing the slurry over a plurality of filter elements disposed in a casing desirably in, a direction parallel to the surfaces of the filter elements at, a rate sufficient to prevent the deposition of solids from said slurry on the filter surfaces or to remove solids deposited on the filter surfaces, purified liquid being withdrawn from said filters. The invention also provides an apparatus for concentrating a slurry comprising a casing, a plurality of parallel or downstream converting filter elements disposed in the casing an inlet for said slurry to be concentrated; an outlet for the concentrated …

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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
  • 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—
GrantedFebruary 26, 1980
Term endedFebruary 26, 1997
Patent numberCA 1072453 A
Classification (IPC)B01D29/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedFeb 26, 1980Term endedFeb 26, 1997

Sources & verification

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