US3120480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control rod for nuclear reactors
Assignee: Individual
•
Filing: 1961-08-02
•
Granted: 1964-02-04
•
Expires: 1981-08-02
Abstract
No abstract record available.
Inventors
- 👤 Ledin Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:14
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; G21C7/16; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CONTROL ROD FOR USE IN A NUCLEAR REACTOR COMPRISING AN ELONGATED SUPPORT ROD, SPACER ELEMENTS FIXED TO SAID SUPPORT ROD AT SPACED INTERVALS THEREALONG, A GENERALLY CYLINDRICAL SECTION OF NEUTRON ABSORBING MATERIAL COAXIALLY DISPOSED ON SAID SUPPORT ROD INTERMEDIATE ADJOINING PAIRS OF SAID SPACER ELEMENTS, AND A FLEXIBLE METAL COMPRESSIBLE DISC WASHER INTERMEDIATE EACH SPACER ELEMENT AND THE ADJOINING END OF SAID SECTION OF NEUTRON ABSORBING MATERIAL IN POSITION ON SAID SECTION TO CUSHION SAID SECTION AGAINST SHOCK LOADS.
Claim 2
Dependent Claim
80 words
A CONTROL ROD FOR USE IN A NUCLEAR REACTOR COMPRISING AN ELONGATED SUPPORT ROD, SPACER ELEMENTS FIXED TO SAID SUPPORT ROD AT SPACED INTERVALS THEREALONG, A GENERALLY CYLINDRICAL SECTION OF NEUTRON ABSORBING MATERIAL COAXIALLY DISPOSED ON SAID SUPPORT ROD INTERMEDIATE ADJOINING PAIRS OF SAID SPACER ELEMENTS, AND A FLEXIBLE METAL COMPRESSIBLE DISC WASHER INTERMEDIATE EACH SPACER ELEMENT AND THE ADJOINING END OF SAID SECTION OF NEUTRON ABSORBING MATERIAL IN POSITION ON SAID SECTION TO CUSHION SAID SECTION AGAINST SHOCK LOADS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |