Coating processes – Restoring or repairing
Patent
1994-03-15
1995-05-30
Bell, Janyce
Coating processes
Restoring or repairing
427236, 427427, 118317, B32B 3500
Patent
active
054199220
ABSTRACT:
Refractory material is applied to the interior surface of a vessel by advancing a boom carriage on a frame positioned externally of the vessel through an opening in the vessel. The boom carriage supports a collapsed telescoping mast and a nozzle boom. The carriage supporting the mast and nozzle boom is advanced through the opening to an elevated position within the vessel. At the end of travel of the boom carriage, the telescoping mast is pivoted through approximately 90.degree. to a vertical position and the nozzle boom is pivoted to a position perpendicular to the mast. The mast is progressively extended as the nozzle boom is rotated and refractory material is sprayed from a nozzle assembly on the end of the boom onto the vessel interior surface. The nozzle boom is transversely and pivotally movable on the mast to adjust the position of the nozzle assembly to follow the irregular contour on the interior surface as the mast is telescopically advanced or retracted.
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Adams John M.
Bell Janyce
BMI Inc.
Price, Jr,. Stanley J.
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