Boiling water reactor core shroud head bolt retainer tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 19, 2016
Grant Date -
Nov 26, 2015
app pub date -
May 28, 2015
filing date -
Aug 11, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
The inventive tool is designed to ensure proper plant operation position of the core shroud head bolt assemblies of a boiling water nuclear reactor. The tool exerts an upward pulling force on stuck retainers to return them to the locking position around the nut. The tool includes a frame, an engagement member, and a collar. The engagement member is lowered toward and end of the bolt until it comes into contact therewith. Further movement of the engagement member causes the frame and collar to move upward, lifting the retainer and extending the spring.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- B25B Class
- 711 Applications Filed
- 556 Patents Issued To-Date
- 78.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- B25B Class
- 20 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 19, 2028 |
