Device for remote positioning of thermocouples in a nuclear reactor
Abstract
Abstract REMOTE POSITIONING OF THERMOCOUPLES IN PROXIMITY TO THE FUEL ASSEMBLIES OF A NUCLEAR REACTOR CORE IS CARRIED OUT BY MEANS OF A DEVICE COMPRISING AN ELONGATED CYLINDRICAL GUIDE TUBE SECURED AT ONE OPEN EXTREMLY TO THE STEAL PLUG OF THE REACTOR VESSEL WHILST THE OTHER EXTREMELY IS CLOSED BY AN END-PIECE WHICH HAS A SMALLER INTERNAL CROSSTHE FUEL ASSEMBLIES AND WHICH HAS A SMALLER INTERNAL CROSSSECTIONAL AREA THAN THE GUIDE TUBE. THE DEVICE ESSENTIALLY COMPRISES A FLEXIBLE METALLIC POSITIONING ARM WHICH IS CAPABLE OF SLIDING WITHIN THE INTERIOR OF THE GUIDE TUBE AND AT LEAST ONE THERMOCOUPLE CABLE MOUNTED INSIDE THE POSITIONING ARM. THAT END OF THE CABLE WHICH CARRIES THE SENSITIVE ELEMENT OF THE THERMOCOUPLE IS ATTACHED TO THE EXTERIOR OF AN ELASTIC CLAMP WHICH IS SECURED TO THE POSITIONING ARM. THE OPEN END OF THE POSITIONING ARM IS ENGAGED WITHIN THE GUIDE TUBE UNTIL IT PENETRATES IN THE ENDPIECE, THREBY LOSING THE CLAMP AND BRINGING THE SENSITIVE ELEMENT INTO CONTACT WITH THE SURFACE OF THE ENDPIECE. D R A W I N G
Inventors
- 👤 N Lions
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |