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Canadian application, no grantCanada

Device for dust separation from gases

CA 2075357 A1 · Owner: Keuschnigg, Josef · Inventors: Keuschnigg, Josef; Keuschnigg, Josef

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 device for dust separation from flue gases produced during combustion of solid waste comprises a housing (1) wherein an untreated gas chamber (3) is arranged. Several cyclone separators (10) are provided in the untreated gas chamber (3); the untreated gas enters the housings (12) of these separators by way of a tangential raw gas inlet (13). Furthermore a pure, gas chamber (7) is located in the housing (1) separated from, the raw gas chamber (3) by a partition (5). The pure gas exits from the cyclone separators (10) through pipes (14) penetrating the partition (5) into the pure gas chamber (7). The cyclone separators (10) each include a dip pipe (14 15) respectively, projecting from 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

  • Filed August 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 5, 1992
GrantedNo grant recorded
Term endedAugust 5, 2012
Patent numberCA 2075357 A1
Classification (IPC)B04C5/28 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedAug 5, 1992Term endedAug 5, 2012

Sources & verification

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