US3751334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for controlling a nuclear reactor
Assignee: Brown Boveri Krupp Reaktorbau GmbH
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Filing: 1971-07-07
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Granted: 1973-08-07
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Expires: 1991-07-07
Abstract
Abstract For the control and shut-down of the fission reaction in a pebble bed nuclear reactor where ball-shaped operating elements including fuel elements are arranged in a pile, a tubular casing is arranged to be rotated as it moves axially through the pile, and an absorber element is positioned within the casing. A cable is attached to the absorber element and to a winch or similar device for selectively positioning the absorber element within the casing. The exterior surface of the casing is shaped so that is passes through the pile without causing undue stress in the ball-shaped elements.
Inventors
- 👤 W Sturmer
- 👤 H Handel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:12
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; G21C7/14; G21C7/10; G21C7/107; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
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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 |