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Canadian application, no grantCanada

Hydrocyclone

CA 2195267 A1 · Owner: Hesse, Wayne W. · Inventors: Hesse, Wayne W.; Marles, Howard T.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is provided a hydrocyclone which operates on a relatively low pressure differential and on a linear flow principle. The hydrocyclone comprises an inlet chamber with a vortex creating a spiral insert therein which inlet, chamber opens in to a frustoconical portion of the hydrocyclone body. The frustoconical portion opens into a cylindrical portion which leads both to the accept and reject outlets at the end. The hydrocyclone is particularly useful for on sight separation of produced water in oil fields. The invention also provides hydrocyclone units of linked hydrocyclones according to the present invention, fluid separation systems incorporating hydrocyclones of the invention and …

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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

  • Filed January 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 16, 1997
GrantedNo grant recorded
Term endedJanuary 16, 2017
Patent numberCA 2195267 A1
Classification (IPC)B04C1/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 16, 1997Term endedJan 16, 2017

Sources & verification

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