Remotely operated maintenance and inspection equipment transport

Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Vessel monitoring or inspection

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376250, 165 11R, G21C 1700

Patent

active

045157472

ABSTRACT:
A wheeled transporter is placed at the periphery of the tube bundle which extends up from its tube sheet within a nuclear steam generator shell. The transporter is formed in hinged sections which can be disengaged as required at the periphery of the tube bundle. A cable attached to each end of the transporter extend through the handholes for movement of the transporter along the bundle periphery. Pistons on the transporter are controlled remotely to extend into engagement with the internal wall of the generator shell to selectively immobilize the transporter at any desired peripheral position and thereby form a steady base for maintenance and inspection devices mounted on the transporter.

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patent: 4432931 (1984-02-01), Lockett
patent: 4460920 (1984-07-01), Weber et al.

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