US3219535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor control means
Assignee: Individual
•
Filing: 1964-12-15
•
Granted: 1965-11-23
•
Expires: 1984-12-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:32
CPC Classifications
G; G21; G21C; G21C5/00; G21C5/18; G21C5/20; G21C7/00; G21C7/30; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ASSEMBLY COMPRISING: AN OUTER ANNULAR FIXED CORE SECTION CONTAINING FISSIONABLE MATERIAL; AN INNER CYLINDRICAL MOVABLE CORE SECTION CONTAINING FISSIONABLE MATERIAL RADIALLY SPACED THEREFROM; AND, AN ANNULAR SAFETY ELEMENT CONTAINING A MATERIAL OF HIGH NEUTRON CAPTURE CROSS SECTION DISPOSED FOR LONGITUDINAL MOVEMENT BETWEEN THE FIXED AND MOVABLE CORE SECTIONS.
Claim 2
Dependent Claim
49 words
AN ASSEMBLY COMPRISING: AN OUTER ANNULAR FIXED CORE SECTION CONTAINING FISSIONABLE MATERIAL; AN INNER CYLINDRICAL MOVABLE CORE SECTION CONTAINING FISSIONABLE MATERIAL RADIALLY SPACED THEREFROM; AND, AN ANNULAR SAFETY ELEMENT CONTAINING A MATERIAL OF HIGH NEUTRON CAPTURE CROSS SECTION DISPOSED FOR LONGITUDINAL MOVEMENT BETWEEN THE FIXED AND MOVABLE CORE SECTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |