Method and apparatus for fuelling a pressurised nuclear reactor
Abstract
Abstract A nuclear reactor fuel channel which extends horizontally and has a flap valve sealing the fuel channel is fuelled by means of a fueling machine comprising a casing, a driven endless conveyor within the casing, a fuel stringer engaging means on the conveyor, fuel stringer guides on the conveyor, a rotatable ram having an inclined end face, and means for rotating the ram when it has opened the flap so that the inclined end face is turned away from the flap valve. By attaching the fuelling machine to a pressurized fuel channel the ram may be advanced to open the flap valve, rotated, and then retracted to allow a spent fuel stringer to be moved out of the fuel channel by the coolant flow therein until the fuel stringer is engaged by the engaging means and hauled on the conveyor.
Inventors
- 👤 St Whittaker
Bibliographic Details
Claims Analysis
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |