Orientable lighting apparatus for a pond containing radioactive materials
AssigneeElectricite de France (Service National)
InventorsJean Denis, Lucien Leproust
Life of this patent
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Abstract
The handling pond of a pressurized water nuclear reactor is equipped with orientable lighting apparatuses. Each apparatus comprises a floating lighting means mounted at the end of an also floating articulated arm. The opposite end of the arm is supported by a vertical guide mounted on one edge or side of the pond. The lighting means comprises a floodlight emitting a parallel beam of light through the transparent bottom of a tight box, which also contains means for orienting the floodlight about two orthogonal axes. A cover, positioned out of the water, gives access to the interior of the box.
Claims9
An orientable lighting apparatus for equipping a pond containing radioactive materials, wherein it comprises a vertical guide which can be mounted on one side of the pond, a floating, tight box having a transparent lower partition, a floodlight contained in the box and able to emit a substantially parallel beam of light through said lower transparent partition, means contained in the box for orienting the floodlight about two axes which are orthogonal to one another and a floating arm incorporating at least two segments which are articulated to one another about a first axis perpendicular to the vertical plane containing said arm, a first end of the arm being mounted on the guide so as to be able to move in a vertical direction defined by the guide and being able to pivot about a second axis perpendicular to said plane, the box being articulated on a second end of the arm about a third axis perpendicular to said plane.
Dependencies are inferred from the claim text.