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Expired Canadian patentCanada

Partial combustion burner

CA 1295192 C · Owner: Kuypers, Willem Frederick · Inventors: Kuypers, Willem Frederick; Hasenack, Hendrikus Johannes Antonius

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 burner for the partial combustion of a solid carbonaceous fuel, and suitable for use in an reactor having a plurality of burners wherein e.g. finely divided coal is supplied to a reactor space via a central channel disposed along the longitudinal axis of the burner, and oxygen-containing gas is supplied via an annular channel surrounding said central channel and configured for said gas to intersect said coal at an acute angle, and heat from the combustion is removed from a dimensioned curvilinear hollow front of the burner by coolant flowed radially at constant momentum through said hollow front.

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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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1989
GrantedFebruary 4, 1992
Term endedFebruary 4, 2009
Patent numberCA 1295192 C
Classification (IPC)C10J3/48

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJune 5, 1989Patent grantedFeb 4, 1992Term endedFeb 4, 2009

Sources & verification

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