Device for centering a servicing tool in a steam generator tube
US5133925A · kind A · utility
2Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Apr 3, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The centering device comprises a centering plate (23) mounted on a carrier member (21) for rotation about an axis parallel to the axis of the steam generator tubes and carrying two radial expansion fastening grippers (39), and a drive (22, 27, 28) for orientation of the plate (23) about its axis. The fastening grippers (39) are disposed on the plate in relative positions corresponding to openings provided in the tube plate (18) for the passage of the tubes (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.