Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor...
Patent
1986-08-14
1988-05-24
Cangialosi, Salvatore
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
376249, G21C 1700
Patent
active
047464860
ABSTRACT:
Device for checking clearance between the periphery of the upper core plate and the inner surface of the core enclosure of a pressurized water nuclear reactor comprising a vertical supporting structure (7) resting on the upper plate (3), a plurality of articulated assemblies (10), each carrying a calibrated feeler blade of a specified thickness, a pivoting assembly associated with each of the articulated assemblies, for moving the blades (9) in a substantially vertical direction towards the gap between the plate (3) and the enclosure (1, 2), or in the opposite direction, as well as a video camera (14) in the vicinity of the blades (9). The device enables the checking to be carried out under water and by remote control.
REFERENCES:
patent: 4196048 (1980-04-01), Qurnell et al.
patent: 4217173 (1980-08-01), Jabsen
patent: 4390496 (1983-06-01), Wozniak
patent: 4421715 (1983-12-01), Gunter et al.
patent: 4425298 (1984-01-01), Shields
Cadaureille Gerard
Frizot Alain
Lalere Jean-Christophe
Machuron Jean-Yves
Cangialosi Salvatore
Framatome
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