General Electric Company

Steven A Hucik

Larry E Fennern

Charles W Dillmann

Russell M Fawcett

Roy C Challberg

Richard A Ose

Nilkanth T Patel

A boiling water reactor includes a pressure vessel containing a reactor core, chimney, steam separator assembly, and steam dryer assembly therein, with the vessel being filled with reactor water to a normal water level through the steam separator assembly. A plurality of control rod drives extend downwardly from the bottom of the pressure vessel and are operatively joined to control rods extending downwardly into the reactor core. The chimney includes a plurality of channels disposed above the core and laterally spaced apart to define guide slots for receiving the control rods as they are selectively translated upwardly out of the core by the control rod drives. The chimney has a vertical height for increasing the normal water level above the reactor core and for providing a space for the control rods withdrawn from the reactor core by the bottom-mounted control rod drives. The control rods are selectively withdrawn upwardly from the core and inserted downwardly into the core by the control rod drives, which also are effective for selectively releasing the control rods for allowing gravity to insert the control rods into the core.

Boiling water reactor including split control rod drives

A method for tack welding a clip same to a support surface to removably secure a cable and instrumentation which may be connected on the cable in an environment wherein fluid flow is imposing loadings such as vibrations on the support surface, the environments of use including nuclear reactors, wind tunnels and the like. The restraint clip can comprise a single-piece body having a loop part wrapped around the cable and a pair of generally flat anchor plates extending codirectionally in juxtaposed relationship away from opposite ends of the loop part, the clip being fixed to the support surface by tack welding the two anchor plates to each other, and one of the anchor plates to the support surface. Removal of the clip from its fixing to the support surface preferably is effected with prying force applied to the loop part from behind the loop part with a tool anchored against the support surface.

Cable mounting and removal in fluid flow environment

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San Jose, CA, United States of America

Steven A Hucik