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Expired Canadian patentCanada

Steam generating magnetohydrodynamic diffuser

CA 1135129 A · Owner: Combustion Engineering, Inc. · Inventors: Darling, Scott L.; Bozzuto, Carl R.

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 steam generating diffuser comprising a plurality of heat exchange tubes arranged to form a horizontally disposed longitudinally, elongated open-ended divergent duct. A refractory lining is laid up around the inner surface of the divergent duct so as to protect the heat exchange tubes. The inlet of each heat exchange tube is connected to a lower water distribution header disposed beneath the duct and the outlet of each heat exchange tube is connected to an upper steam and water distribution header disposed above the duct. Each tube provides a fluid flow path between the tower and upper headers which is continuously upwardly directed.

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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 November 9, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1980
GrantedNovember 9, 1982
Term endedNovember 9, 1999
Patent numberCA 1135129 A
Classification (IPC)F22B21/30 +2 more

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedMay 9, 1980Patent grantedNov 9, 1982Term endedNov 9, 1999

Sources & verification

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