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Expired Canadian patentCanada

Apparatus and method for absorbing a vapor in a liquid and absorption refrigeration system incorporating same

CA 1083841 A · Owner: Trane Company (The) · Inventors: Webb, Ralph L.; Mougin, Louis J.

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Abstract From the Canadian patent

Apparatus and method are disclosed for absorbing a subject vapor in an absorbent liquid wherein an additive is provided which exists in at least a vapor phase concurrently with the subject vapor, which additive is effective to reduce the surface tension of the absorbent liquid upon contact therewith. A heat transfer member is provided having a first surface over which absorbent liquid is passed such that a film is formed thereon, and a second surface over which a heat transfer fluid is passed in order to remove heat from the absorption process. Means are provided associated with the first surface of the heat transfer member for promoting interfacial turbulence between the film of absorbent …

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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 August 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 1997.
  • 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, 1979
GrantedAugust 19, 1980
Term endedAugust 19, 1997
Patent numberCA 1083841 A
Classification (IPC)F25B15/00 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedMay 9, 1979Patent grantedAug 19, 1980Term endedAug 19, 1997

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