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Expired Canadian patentCanada

Centrifugal separator assembly and method for separating particles from hot gas

CA 2215040 C · Owner: Foster Wheeler Energia Oy · Inventors: Hyppanen, Timo

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

A centrifugal separator (11) has a plurality of substantially planar walls, including a first wall (32) defining a vortex chamber (12) having an interior gas volume (31) and for establishing at least one gas vortex in the gas volume, and the gas volume has a cross section that is distinctly non-circular. In addition to conventional outlets, the separator includes a gas inlet (30) having at least one elongated jet-defining wall (40) with a free end portion (41) extending into the gas volume (31) a first distance from the first wall (32) to define a gas jet, that extends substantially tangentially to the gas vortex in the gas volume. An insert (33') extends between the jet-defining wall (40) …

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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 March 7, 1996 and granted July 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2018.
  • 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 7, 1996
GrantedJuly 3, 2001
Term endedMarch 7, 2016
Patent numberCA 2215040 C
Classification (IPC)B04C5/08 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 7, 1996Patent grantedJuly 3, 2001Term endedMarch 7, 2016

Sources & verification

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