Patent Yard Sign in
Expired Canadian patentCanada

Foam flotation process and apparatus for separation of emulsions or suspensions

CA 1323116 C · Owner: Ystral Gmbh · Inventors: Seeger, Hanspeter

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 process and an apparatus are specified by which emulsions or suspensions of both different and changing composition can be separated in a particularly reliable manner. Proceeding on the principle of turbo-flotation which is known per se, according to one embodiment the gas, is dispersed in the lower region of the vessel so that it is finely dispersed directly at the point where the emulsion is broken up or the suspension is separated respectively, mechanically. Furthermore the emulsion or suspension to be, separated is supplied to the vessel close to the surface of the emulsion and the residue is removed at the bottom of the vessel. In this way, in continuous operation a, counter-flow …

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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 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.
FiledOctober 19, 1984
GrantedOctober 12, 1993
Term endedOctober 12, 2010
Patent numberCA 1323116 C
Classification (IPC)B03D1/02 +2 more

Timeline

Timeline From CIPO dates

198519881991199419972000200320062009Application filedOct 19, 1984Patent grantedOct 12, 1993Term endedOct 12, 2010

Sources & verification

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