Method and apparatus for forming a tube
US4753098A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1987 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Mar 26, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21F1/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming tubes, rods and the like into a serpentine configuration. A plurality of guide rails are mounted on a supporting surface and carriage bars are slideable on the guide rails. A lazy tong linkage having bend forming members mounted thereon is slideably mounted on the carriage bars. A lazy tong linkage assembly is disposed on each side of a center line and expander mechanisms are provided for forcing the two spaced lazy tong linkages apart. Drive means connected to the carriage bars drives the lazy tong linkage to a collapsed position and this movement causes the bend forming members to form a straight tube or rod into a serpentine configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.