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Expired Canadian patentCanada

Female coupling component forming a part of a quick coupling

CA 1280783 C · Owner: Dart Engineering Ag · Inventors: Ekman, Thure

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

In a female coupling component (1 2) which forms part of a quick, coupling there is present a unit (12) so arranged as to be capable of longitudinal displacement in the longitudinal sense of the female coupling component. The unit supports at its first end a first sealing component (14) which is capable of interacting with a seat (1b) in the female coupling component. At its second end the unit supports a second sealing component (15) which is capable of interacting with a sleeve (7) so arranged as to be capable of longitudinal displacement in the female coupling component. The unit comprises an elongated hub component and extending from it wing-shaped elements (25) by means of which the …

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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 February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.
FiledFebruary 18, 1986
GrantedFebruary 26, 1991
Term endedFebruary 26, 2008
Patent numberCA 1280783 C
Classification (IPC)F16L37/28 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedFeb 18, 1986Patent grantedFeb 26, 1991Term endedFeb 26, 2008

Sources & verification

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