Method of selective plastic expansion of sections of a tubing
US6419025B1 · kind B1 · utility
84Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of selective plastic expansion of sections of a tubing to create one or more recesses in the tubing with a larger diameter than that of the original tubing in which the tubing is radially symmetrically or asymmetrically expanded at one or more locations by application of a radial force to the interior of the tubing thereby inducing a plastic radial deformation of the tubing and removing said radial force from the interior of the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.