Automation Industries, Inc.

Michael Vassalotti

Alvaro Obligado

Frank Anastasi

A self-contained tensioner and tightener device for a threaded stud characterized in that an expandable hydraulic tensioning device is disposable between a locking nut and a foundation surface from which the stud projects, and the locking nut and the elements of the tensioning device when removed from the stud are necessarily displaced onto and retained by a take-up finger extending from the tensioning device coaxial with the stud, whereby the entire tensioning and tightening assembly is self-contained and none of its parts necessarily separate from the combination when the combination is removed from the stud.

Self-contained stud tensioner and tightener device

Apparatus is disclosed for decontaminating a nuclear reactor pressure vessel. It comprises a buoyant annular frame which descends into the vessel as the water level within it is lowered. Spray nozzles move around the frame on trolleys in a reciprocating fashion and spray water under high pressure on the inner surface of the vessel wall, resulting in automatic washdown of the reactor vessel.

Floating decontamination apparatus

A removable plugging device for a pipeline, and particularly for pressure testing a steam pipeline in a boiling water reactor, wherein an inflatable annular sealing member seals off the pipeline and characterized by radially movable shoes for holding the plug in place, each shoe being pivotally mounted for self-adjusting engagement with even an out-of-round pipeline interior.

Removable pipeline plug

Apparatus is disclosed for decontaminating the wall of a boiling water reactor cavity. A chassis on wheels is rollable on the refueling floor along the cavity curb. A pair of horizontal wheels roll against the curb. A support member extends upwardly and laterally from the chassis to clear the personnel handrail. A mast depends from the support member into the cavity and includes a horizontal reaction wheel bearing against the cavity wall. A vertically positionable carriage is mounted on the mast and carries water spray nozzles directed against the wall.

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New Milford, CT, United States of America

Michael Vassalotti