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Expired Canadian patentCanada

Connection between cooled pipe and uncooled pipe in a double-pipe heat exchanger

CA 2546060 C · Owner: Alfa Laval Olmi S.P.A. · Inventors: Zanardi, Luca; Galatello Adamo, Gaetano; Ricci, Pietro

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 union connection between uncooled pipe and cooled double-wall pipe in a heat exchanger comprising a double-wall pipe (12) comprising in turn an internal pipe (15) traveled by a fluid to be cooled and an external pipe (14) defining with the internal pipe an air space (19) traveled by a cooling fluid with one end of the double-wall pipe (12) being connected to an inlet duct (30) of the fluid to be cooled through a connection part (16) also forming a bottom wall (18) of the air space virtually transversal to the double-wall pipe extension and characterized in that the connection part (16) has an annular form with U cross section to define two annular shanks (20 21) extending longitudinally …

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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

  • Filed May 8, 2006 and granted September 23, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 8, 2006
GrantedSeptember 23, 2014
Term endedMay 8, 2026
Patent numberCA 2546060 C
Classification (IPC)F16L39/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 8, 2006Patent grantedSep 23, 2014Term endedMay 8, 2026

Sources & verification

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