Method and device for forming a flange or a rim on an end of a steel pipe
CA 2424583 A1 · Owner: Metu-System Meinig Kg · Inventors: Meinig, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and device for forming a one-piece flange (10,18) or rim on the end of a steel (12) pipe. The pipe is placed in a flat position on all sides on the inner surface thereof close to the end thereof and is clamped. One part of the pipe (10) protrudes above the clamped section of the tube (12). The protruding part of the pipe is bent by applying surface pressure against a peripheral section on the inner surface thereof until a , desired outward flectional angle is obtained. The desired flectional angle on all parts of the pipe (10, 18) or a part-section (10) thereof is gradually achieved by rotating the pipe (12) relative to the peripheral section wherein …
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 September 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2023.
- 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.