US3751336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for pebble-bed nuclear reactors
Assignee: Hochtemperatur Reaktorbau GmbH
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Filing: 1969-12-18
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Granted: 1973-08-07
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Expires: 1989-12-18
Abstract
Abstract A control device for regulating a pebble-bed nuclear reactor including an absorber rod movable longitudinally to displace reactor core elements, said rod having at least one helical groove formed on the exterior of that part of the rod which penetrates the core. Drive means are provided whereby both longitudinal and rotary movements may be imparted to the rod, the movements, being such as to act in conjunction with the sense of the helical groove so to facilitate insertion and/or withdrawal of the rod by assisting the displacement of core elements.
Inventors
- 👤 A Angelini
- 👤 H Handel
- 👤 H Landwehr
- 👤 G Ruck
- 👤 K Hammelmann
- 👤 J Schoning
- 👤 B Schwenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:59
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/10; G21C7/107; G21C7/12; G21C7/14; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |