Improved fitting with sequential sealing action
CA 2597385 C · Owner: Mckay, Albert A. · Inventors: Mckay, Albert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fitting for making connections with a pipe includes a coupling body having an inside surface defining a bore for receiving a pipe. A ring is fitted over the , coupling body for sealing and mechanically connecting the coupling body to the pipe. , An axisymmetrical main seal is formed on the inside surface of the coupling body , that seals and connects to the pipe when the ring is installed on the coupling body. , An axisymmetrical inboard seal is formed on the inside surface of the coupling body , axially spaced from the main seal that seals and connects to the pipe when the ring , is installed on the coupling body. At least one of the coupling body and the ring is , configured so …
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 February 13, 2006 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 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.
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.