US Patent No: 4,699,760
Number of patents in Portfolio can not be more than 2000
Fuel assembly skeleton with structural and non-structural top nozzle/guide thimble joints
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Oct 13, 1987
Issued date -
Nov 12, 1985
filing date -
06/797,333
serial no -
Expired
status
Importance
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Abstract
A fuel assembly skeleton includes a top nozzle, a number of longitudinally-extending guide thimbles having upper ends, a number of joints interconnecting the top nozzle and the upper ends of the guide thimbles. All but a few of the joints are structural joints providing rigid connections between all but a corresponding few of the guide thimble upper ends and the top nozzle. Each of the other few joints is a non-structural joint providing a non-rigid connection between a guide thimble upper end and the top nozzle. The number of structural joints constitutes at least a substantial majority of the joints and, in any event, the number is at least three times the number of non-structural joints. Each non-structural joint is composed of a hollow sleeve rigidly connected to the top nozzle and disposed in a slip fit relationship about the guide thimble upper end. The sleeve is bulge fitted in a passageway defined in the top nozzle.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,557,891 Pressurized water reactor flow arrangement | 3 | 1982 | |
| 4,584,168 System for controlling destructive vibration of a nuclear control rod | 10 | 1983 | |
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| 4,515,750 Sealing coupling | 25 | 1982 | |
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| 4,535,523 Fuel assemblies for nuclear reactors | 11 | 1983 | |
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| 4,522,782 Fuel assembly for a nuclear reactor | 7 | 1982 | |
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| 4,572,816 Reconstituting a nuclear reactor fuel assembly | 13 | 1983 | |