Pipe jointing
US4288906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53996
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus is provided whereby a joint can be made on site between two flanged pipe ends by winding a ductile metal strip over the flanged ends so that lateral portions of the strip are deformed radially inwardly behind the flanges to entrap them together. The apparatus takes the form of a frame 10 rotatably supporting an annular member 11 which can be brought coaxially to surround the pipe ends. A ductile metal strip is drawn from a reel 17 on the frame and passes in succession between rollers 15 and the flanged pipe ends, the rollers 15 having a progressively more waisted profile so as to bring the strip progressively to a channel shape enclosing the pipe flanges. As the strip is wound spirally over the pipe ends masking 33 is removed from an adhesive ribbon whereby superimposed turns of the strip are bonded together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.