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Expired Canadian patentCanada

Method of removing frost deposits from cooling-coil batteries or the like in a freezing plant during operation, and apparatus for carrying out the method

CA 1106627 A · Owner: Frigoscandia Contracting Ab · Inventors: Jonasson, Staffan

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Abstract From the Canadian patent

A method of removing frost deposits from coolingcoil batteries or the like in a freezing plant during operation, and apparatus for carrying out the method" This invention relates to a method of removing frost deposits from cooling-coil batteries (1) or the like in a freezing plant during operation while main-, taining the state of aggregation of the removed frost deposit. According to the invention the frost deposit is recurrently removed by a current of compressed air being directed towards and brought to sweep over the cooling-coil batteries (1), The invention also concerns an apparatus for carrying out the method, said apparatus including at least one compressed-air nozzle (2) which is …

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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 11, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1998.
  • 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 18, 1979
GrantedAugust 11, 1981
Term endedAugust 11, 1998
Patent numberCA 1106627 A
Classification (IPC)F25D21/00 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMay 18, 1979Patent grantedAug 11, 1981Term endedAug 11, 1998

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