US3350276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional support grid for intermittently necked-down fuel pins
Assignee: Atomic Power Development Associates Inc
•
Filing: 1965-10-07
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Granted: 1967-10-31
•
Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Henrik S Warberg
- 👤 Vernon V Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:05
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/348; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A NUCLEAR REACTOR FUEL ASSEMBLY COMPRISING A WRAPPER TUBE, A PLURALITY OF ELONGATED FUEL RODS DISPOSED IN SAID WRAPPER TUBE, A GRID ASSEMBLY COMPRISING A PLURALITY OF INTERCONNECTED SUPPORTING RINGS WHICH SURROUND SAID FUEL RODS RESPECTIVELY FOR SUPPORTING SAID FUEL RODS IN PARALLEL SUBSTANTIALLY EQUALLY SPACED RELATIONSHIP ONE WITH RESPECT TO THE OTHERS, EACH OF SAID FUEL RODS HAVING A PORTION NECKED-DOWN TO SMALLER DIAMETER AND A SUBSTANTIAL PORTION OF SAID SUPPORTING RINGS BEING DISPOSED WITHIN THE NECKED-DOWN PORTIONS RESPECTIVELY, A PLURALITY OF INWARDLY DIRECTED INDENTATIONS DISPOSED ON THE INSIDE SURFACE OF EACH OF SAID SUPPORTING RINGS FOR RESILIENTLY ENGAGING SAID FUEL RODS, AND SLOT MEANS DISPOSED ADJACENT SAID INDENTATIONS.
Claim 2
Dependent Claim
110 words
A NUCLEAR REACTOR FUEL ASSEMBLY COMPRISING A WRAPPER TUBE, A PLURALITY OF ELONGATED FUEL RODS DISPOSED IN SAID WRAPPER TUBE, A GRID ASSEMBLY COMPRISING A PLURALITY OF INTERCONNECTED SUPPORTING RINGS WHICH SURROUND SAID FUEL RODS RESPECTIVELY FOR SUPPORTING SAID FUEL RODS IN PARALLEL SUBSTANTIALLY EQUALLY SPACED RELATIONSHIP ONE WITH RESPECT TO THE OTHERS, EACH OF SAID FUEL RODS HAVING A PORTION NECKED-DOWN TO SMALLER DIAMETER AND A SUBSTANTIAL PORTION OF SAID SUPPORTING RINGS BEING DISPOSED WITHIN THE NECKED-DOWN PORTIONS RESPECTIVELY, A PLURALITY OF INWARDLY DIRECTED INDENTATIONS DISPOSED ON THE INSIDE SURFACE OF EACH OF SAID SUPPORTING RINGS FOR RESILIENTLY ENGAGING SAID FUEL RODS, AND SLOT MEANS DISPOSED ADJACENT SAID INDENTATIONS.
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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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |