Storage system for radioactive nuclear waste with pressure surge protection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 13, 2022
Grant Date -
Nov 4, 2021
app pub date -
Apr 1, 2021
filing date -
Apr 1, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A radioactive nuclear waste storage system includes a cask comprising a hermetically sealed internal cavity configured for holding the waste such as spent nuclear fuel submerged in an inventory of water. One or more pressure surge capacitors disposed inside the cask include a vacuum cavity evacuated to sub-atmospheric conditions prior to storage of fuel in the cask. At least one rupture disk seals a vacuum chamber inside each capacitor. Each rupture disk is designed and constructed to burst at a predetermined burst pressure level occurring inside the cask external to the capacitor. This allows excess cask pressure occurring during a high pressure excursion resulting from abnormal operating conditions to bleed into capacitor, thereby returning the pressure inside the cask to acceptable levels. In one embodiment, the capacitors are located in peripheral regions of the cask cavity adjacent to the circumferential wall of the cask body.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2021 Application Filing Year
- G21F Class
- 136 Applications Filed
- 51 Patents Issued To-Date
- 37.50 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G21F Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 13, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 13, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 13, 2034 |
