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Expired Canadian patentCanada

Cyclone separator

CA 1317237 C · Owner: Thew, Martin Thomas · Inventors: Smyth, Ian Charles; Thew, Martin Thomas; Carroll, Noel

CIPO record

Overview

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

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Abstract From the Canadian patent

A cyclone separator (10) of the dewatering type which comprises an elongated separating chamber (12) having an axis of symmetry between opposite first and second ends, the separating chamber being of greater cross-sectional dimension at the first end than at the second end. The cyclone separator further includes at least one inlet (20) which is adjacent the first end and at least one overflow outlet (25) for the less dense component and at least one underflow outlet (24) for the more dense component (24). The cyclone separator has a first section (14) which contains the feed inlet (20) and the first section is of reduced crosssectional dimension d2 at its downstream end relative to the …

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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

  • Granted May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 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.
FiledMarch 1, 1988
GrantedMay 4, 1993
Term endedMay 4, 2010
Patent numberCA 1317237 C
Classification (IPC)B01D21/26 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 1, 1988Patent grantedMay 4, 1993Term endedMay 4, 2010

Sources & verification

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