Metal tubing bender
US4909059A · kind A · utility
8Cited by
11References
9Claims
0Family size
Inventor
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A metal tubing bender forms arcs into metal tubing by engaging a swing-arm mounted roller against a clamped tubing section and rotating the roller through an arc necessary to place the desired degrees of bend into the tubing. The tubing is clamped against a forming plate that is provided with a peripheral groove of uniform radius and serves as a die for the forming operation. The forming plate stands out from a mounting plate and the roller swing arm fits between the mounting plate and the forming plate for stability of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.