Hinged steam generator nozzle plug
US4483457A · kind A · utility
14Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1983 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Mar 31, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/921
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A nozzle plug (22) for blocking a nozzle (46) in a nuclear steam generator (16) is improved by the addition of hinges (40a, 40b) which allow the nozzle plug (22) to be inserted into the steam generator (16) through an access port (52) of substantially smaller diameter than the nozzle (46). A recess (54) is provided in one of the semi-circular plates (28) allowing the plates to nest, further reducing the necessary size of the access port (46).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.