Device for bending metal pipe
US4355528A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Feb 21, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bending device for metal pipe with and without plastic jacketing has a short cylindrical segment including a circumferential groove which determines the bending radius of the pipe to be bent and a support for holding the pipe to be bent tangentially with respect to the groove. A lever is mounted for concentric pivotable movement about the segment and a pressing block is mounted on the lever for pivotal movement about an axis parallel to the segment axis. The pressing block has a working surface which has an approximately semicircular, concave cross section in a plane disposed parallel to the pivot axis of the pressing block and the segment axis and a concave cross section in a plane disposed perpendicular to those axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.