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Expired Canadian patentCanada

Generation of energy

CA 1215238 A · Owner: Exergy, Inc. · Inventors: Kalina, Alexander I.

CIPO record

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Abstract From the Canadian patent

A method of generating energy which comprises utilizing relatively lower temperature available heat to effect partial distillation of at least portion of a multicomponent working fluid stream at an intermediate pressure to generate working fluid fractions of differing compositions. The fractions are used to produce at least one main rich solution which is relatively enriched with respect to the lower boiling component, and to produce at least one lean solution which is relatively impoverished with respect to the lower boiling component. The pressure of the main rich solution is increased whereafter it is evaporated using relatively higher temperature heat 40.1 to produce a charged gaseous …

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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 December 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 2003.
  • 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 3, 1983
GrantedDecember 16, 1986
Term endedDecember 16, 2003
Patent numberCA 1215238 A
Classification (IPC)F01K23/00 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 3, 1983Patent grantedDec 16, 1986Term endedDec 16, 2003

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