Patent ID: 8526564
Filing Date: 2013-09-03
Classification: G21C,Y02E

Abstract:
1. An inspection fixture for a top guide of a boiling water reactor comprising: a frame sized to rest and be supported on a top edge of a fuel assembly opening within the top guide; a wheel track supported from said frame in a manner to extend around a periphery of the fuel assembly opening, substantially proximate a border thereof when the frame is supported on the top edge of the fuel assembly opening; a central shaft rotatably supported from the frame extends down below the fuel assembly opening, substantially along an axis of a fuel assembly to be positioned below the opening, when the frame is supported on the top edge of the fuel assembly opening; a linkage bracket fixedly connected to the central shaft extends laterally therefrom with a hinged distal link having a hinge line substantially parallel to and spaced from the central shaft; a cam follower that rides on the wheel track and is supported from the distal link; and an inspection device bracket connected at a fixed angle between the central shaft and the distal link.