Pressure energized sealing joint
CA 1313402 C · Owner: Heijnen, Wilhelmus Hubertus Paulus Maria · Inventors: Heijnen, Wilhelmus Hubertus Paulus Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sealing joint for use in a conduit system where an elevated pressure may exist at one side of the system comprises a pair of co-axial tubular metal sections with intermesting tapered edges which are clamped against each other by fastening means such as, a swivel nut, so as to establish a fluid tight seal formed by the conical contact area between the tapered surfaces of said edges. One of said tubular sections has a tapered edge which is at one side thereof exposed to said elevated pressure. This section has a smaller wall thickness than the tapered edge of the other tubular section so as to allow said elevated pressure to press said tapered edges onto each other. DO/T5768FF
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
- Granted February 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2010.
- 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.