Probe-holding apparatus for holding a probe for checking steam g

Details Probe-holding apparatus for holding a probe for checking steam g Probe-holding apparatus for holding a probe for checking steam g

1980-10-31

1984-01-10

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376250, 165 11A, G21C 1700

Patent

active

044252960

ABSTRACT:
Probe-holding apparatus for holding a probe for checking steam generator tubes particularly in a nuclear reactor installation. The apparatus comprises a telescopic arm supported via a ball and socket joint from a support mounted in or near an access aperture in a chamber at one end of the steam generator. A probe guide is carried by a carriage pivotally mounted at the other end of the telescopic arm. The carriage includes an endless belt having a series of spaced projections which engage into the ends of the tubes, the projections being spaced by a distance equal to the tube pitch or a multiple thereof. The belt is driven by a stepping motor in order to move the carriage and place the probe guide opposite different ones of the tubes.

REFERENCES:
patent: 3954136 (1976-05-01), Gugel
patent: 4117733 (1978-10-01), Gugel
patent: 4131018 (1978-12-01), Muller et al.
patent: 4298054 (1984-11-01), Adamowski

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