Patent Yard Sign in
Expired Canadian patentCanada

Heat treatment of liquids

CA 1197805 A · Owner: Oil Reclamation International Limited · Inventors: Kipatsa, Kalevi

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

HEAT TREATMENT OF LIQUIDS", ABSTRACT, A vacuum vessel with heating jacket around its upper part is fed at one or more nozzles with a coherent or atomised stream(s) of heated liquid e.g. waste oil which impinges generally tangentially on its inner surface. Flash evaporation takes place together with further evaporation from the liquid running around and down the internal vessel wall to the pool of residual liquid in the base of the vessel. Baffles protect large axial vapour outlet from carryout of liquid droplets. The vapour is condensed in a large-diameter large-surface condenser connected to a vacuum pump for the system and liquid collects at a Receiver an Offtake pipe recycles residual …

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 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 2, 1984
GrantedDecember 10, 1985
Term endedDecember 10, 2002
Patent numberCA 1197805 A
Classification (IPC)C10G7/06 +2 more

Timeline

Timeline From CIPO dates

198519871989199119931995199719992001Application filedMarch 2, 1984Patent grantedDec 10, 1985Term endedDec 10, 2002

Sources & verification

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