A pipe coupling adapted for sealing the end of a pipe
CA 2623218 C · Owner: Philmac Pty Ltd. · Inventors: Pridham, Malcolm; Puckett, Geoffrey Bryan; Chelchowski, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a sealing member for use in a pipe coupling assembly and, in , particular, to a sealing member for sealing the end of a pipe having an exposed metal surface at its end, such as pipes comprising an internal metal sheath which is lined internally and externally with plastic. , The sealing member includes a pipe receiving portion adapted to receive the end of the pipe to thereby , prevent contact between the end of the pipe and fluid travelling through the pipe. The sealing member , may be used in standard pipe couplings or is preferably incorporated into a , coupling having a deformable gripping member whereby upon tightening of the coupling assembly nut …
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, 2005 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2025.
- 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.
Timeline
Timeline From CIPO dates
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.