Pipe resistance butt welding apparatus
US4310737A · kind A · utility
9Cited by
2References
7Claims
0Family size
Inventors
Key dates
| Filing date | May 14, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | May 14, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/0935
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pipe resistance butt welding apparatus comprises a movable clamp and a fixed clamp to locate the pipes to be welded. Current-feeding shoes contact the ends of the pipes to be welded together. A device is provided for axially moving the movable clamp in fusing and upsetting the pipes. Both clamps and the device are mounted on an elongated supporting member. The shoes are carried by beams oriented along the supporting member and having bevels acted upon by drive rollers, whose axes are directed across the supporting member. The invention is useful for welding large diameter pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.