Patent US3278385A successfully refreshed from Google Patents.
US3278385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor control rod drive mechanism
Assignee: Lockheed Martin Corp
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Filing: 1964-06-04
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Granted: 1966-10-11
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Dufrane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; G21C7/14; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1574
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN IMPROVED REACTOR CONTROL ROD DRIVE MECHANISM FOR A NUCLEAR REACTOR HAVING A PRESSURE RESISTANT MAIN REACTOR SECTION INCLUDING A OPENING THEREIN AND AT LEAST ONE CONTROL ROD POSITIONED THEREIN FOR LIMITED MOVEMENT WITH RESPECT TO SAID REACTOR SECTION, A FLEXIBLE PLAT EXTENDING ACROSS SAID OENING IN SEALING RELATION THERETO, AN ACTUATOR ROD FIXED TO SAID PLATE AND PASSING AXALLY THERETHROUGH WICH THE DIAMETER OF SAID ACTUATOR ROD BEING SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID OPENING WHEREBY FLEXURE OF SAID PLATE ALLOWS LIMITED AXIAL OSCILLATION OF SAID ACTUATOR ROD AND COUPLING MEANS POSITIONED WITHIN SAID MAIN REACTOR SECTION, FOR COUPLING SAID ACTUATOR ROD TO SAID CONTROL ROD AND RESPONSIVE TO MOVEMENT OF SAID ACTUATOR ROD TO EFFECT INCREMENTAL MOVEMENT OF SAID CONTROL ROD IN ONE DIRECTION TO INCEASE REACTIVITY AND SUSTAINED MOVEMENT OF SAID CONTROL ROD IN THE OPPOSITE DIRECTION FOR SCRAMMING.
Claim 2
Dependent Claim
143 words
AN IMPROVED REACTOR CONTROL ROD DRIVE MECHANISM FOR A NUCLEAR REACTOR HAVING A PRESSURE RESISTANT MAIN REACTOR SECTION INCLUDING A OPENING THEREIN AND AT LEAST ONE CONTROL ROD POSITIONED THEREIN FOR LIMITED MOVEMENT WITH RESPECT TO SAID REACTOR SECTION, A FLEXIBLE PLAT EXTENDING ACROSS SAID OENING IN SEALING RELATION THERETO, AN ACTUATOR ROD FIXED TO SAID PLATE AND PASSING AXALLY THERETHROUGH WICH THE DIAMETER OF SAID ACTUATOR ROD BEING SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID OPENING WHEREBY FLEXURE OF SAID PLATE ALLOWS LIMITED AXIAL OSCILLATION OF SAID ACTUATOR ROD AND COUPLING MEANS POSITIONED WITHIN SAID MAIN REACTOR SECTION, FOR COUPLING SAID ACTUATOR ROD TO SAID CONTROL ROD AND RESPONSIVE TO MOVEMENT OF SAID ACTUATOR ROD TO EFFECT INCREMENTAL MOVEMENT OF SAID CONTROL ROD IN ONE DIRECTION TO INCEASE REACTIVITY AND SUSTAINED MOVEMENT OF SAID CONTROL ROD IN THE OPPOSITE DIRECTION FOR SCRAMMING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |