Apparatus and process for selectively expanding a tube
US4422317A · kind A · utility
93Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1982 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | Jan 25, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/206
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and process for selectively expanding the wall of a tube by compression and subsequent radial expansion of one or more elastomeric bars lodged within longitudinal slots of a bushing positioned inside the tube. Expansion of the elastomeric bars against the inner surface of the tube results in expansion of the tube wall at intermittent locations about the circumference of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.