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Expired Canadian patentCanada

Device for the sealed connection of two pipe elements

CA 1285301 C · Owner: Societe Anonyme: Societe Industrielle D'Equipment Mecanique · Inventors: Servant, Antoine

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This invention relates to a device for the sealed connection of two pipe elements, wherein it comprises in projection on the pipe elements two members capable. of being moved towards each other by at least one clamping means and of which the contiguous faces define opposite grooves for housing a crushable seal comprising an inner toric ring of which the convexity is directed outwardly and an outer toric ring of which the convexity is directed inwardly. According to the invention, the seal is constituted solely by such rings, which abut on each other opposite the annular crests of their convex parts and the circular groove of each connecting member presents convergent bearing surfaces …

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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 June 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 6, 1987
GrantedJune 25, 1991
Term endedJune 25, 2008
Patent numberCA 1285301 C
Classification (IPC)F16J15/12 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 6, 1987Patent grantedJune 25, 1991Term endedJune 25, 2008

Sources & verification

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