Modular fuel rod spacer assembly for nuclear reactor fuel assemblies
Abstract
Abstract A fuel rod spacer assembly comprises a cellular spacer array and, for each fuel rod, a bearing clip comprising a pair of linked split ring rod embracing portions proportioned to extend around substantially more than 180 degrees of the rod circumference. A pair of spring tab on the split rings are provided for releasably engaging the cellular spacing array in order to prevent longitudinal displacement of the bearing clip. This spacer assembly can be easily fabricated because the bearing clips need not be formed as a part of the cellular array. The fuel rods can be transversely loaded into the bearing clips and longitudinally loaded into the cellular array without contact against tight, previously fixes spacers.
Inventors
- 👤 H Donck
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |