Method of bending metallic pipe
US5555762A · kind A · utility
6Cited by
2References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 29, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Mar 29, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D9/15
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A filling material such as a fatty acid is filled into a metallic pipe in a molten state. The metallic pipe is then bent at a room temperature in a condition in which the filling material is solidified. After the bending work has been finished, the filling material is melted and discharged out of the pipe. The filling material may be a mixture of a fatty acid and a powdery additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.