Coupling for rapidly connecting a tube
CA 2000528 C · Owner: Calmettes, Lionel · Inventors: Calmettes, Lionel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a coupling for rapidly connecting a tube made of rigid material such as metal, or semi-rigid material, such as a plastics material. The coupling presents, at one end adapted to receive the tube, a bore whose diameter is substantially equal to the outer diameter of the tube said bore being provided with at least one supple sealing means capable of coming into contact with one of the walls of the tube. Between the inlet orifice of the bore and the sealing means the coupling, comprises a housing which receives for stopping, the tube, a retractable member which is locally immobilized therein in the axial direction. The coupling and the seal of its bore are made of the …
Read the whole patent
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 October 12, 1989 and granted June 2, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.