Method and apparatus for tube expansion
US4672832A · kind A · utility
19Cited by
11References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1985 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Jul 17, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/706
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for radially expanding a tubular member and comprising first and second spaced apart end caps rigidly connected to each other by a post. An expandable bladder fixed to each end cap and extending around the post to define an annular space. A propellant disposed in the annular space and ignition apparatus associated with the propellant. The propellant being of the type which burns rapidly to generate large amounts of gas for expanding the bladder. The tubular member being disposed around the bladder for radial expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.