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US 4,381,284 AGranted
Fuel assembly for a nuclear reactor
AssigneeWestinghouse Electric Corp.
InventorRobert K. Gjertsen
Life of this patent
Estimating the term…
Abstract
A fuel assembly in a nuclear reactor comprises a locking mechanism that is capable of locking the fuel assembly to the core plate of a nuclear reactor to prevent inadvertent movement of the fuel assembly. The locking mechanism comprises a ratchet mechanism that allows the fuel assembly to be easily locked to the core plate but prevents unlocking except when the ratchet is disengaged.
Claims10
A fuel assembly for a nuclear reactor comprising:
- a top nozzle;
- a bottom nozzle;
- a plurality of fuel elements containing nuclear fuel disposed between said top nozzle and said bottom nozzle;
- a guide tube extending from said top nozzle to said bottom nozzle;
- a lower member attached to the lower end of said guide tube and having external threads thereon for engagement the core plate of said nuclear reactor thereby attaching said fuel assembly to said core plate;
- and
- locking means attached to said top nozzle for preventing disengagement of said external threads.
4 more elements
Dependencies are inferred from the claim text.