Apparatus and method of the fabrication of internally weld-cladded pipe elbows
CA 1090172 A · Owner: Sulzer Brothers Limited · Inventors: Ludwig, Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The weld-cladding apparatus includes a turntable which is rotatably mounted in a yoke about a horixontal axis. An outrigger is mounted on the yoke and has a curvature coincident to the curvature of the torus-to-be-cladded and a center of curvature on the axis of the turntable. The weldcladding means is rotatably mounted at the end of the outrigger in a vertical plane common to the plane in which the pivot axis of the turntable moves during rotation of the yoke. During use the weld-cladding means remains vertical while the turntable pivots on the horizontal axis. In order to form a weld, the turntable is oscillated back and forth about the pivot axis over an arcuate length equal to the …
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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 November 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 1997.
- 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.