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US 6,508,413 B2Granted
Remote spray coating of nuclear cross-under piping
AssigneeSiemens Westinghouse Power Corporation
InventorsJames Alan Bauer, George Franklin Dailey, Mark William Fischer, Dwight Owen Willaman, Michael J. Metala
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Abstract
A machine (10) that can clean and spray coat the inside of a hollow pipe (14) can contain a support bar (16) and associated motors (6 and 8) with a moveable carriage (12) which mounts a thermal spray coating device (28) and/or an abrasion cleaning/profiling head (30) where a programmable controller external to the pipe is capable of controlling the motors (6 and 8).
Claims12
A machine for coating an interior surface of a hollow, axially elongated pipe comprising:
- (a) a center portion of at least one support bar which can be aligned concentric with a centerline of the pipe;
- (b) at least two tripods having at least three legs to contact the interior of the pipe and support the center portion of the support bar;
- (c) at least one moveable carriage which can travel axially within the pipe, rotatably attached to the center portion of the support bar, said carriage containing at least one thermal spray coating device which extends from the carriage to the interior of the pipe;
- (d) a source of thermal sprayable material;
- (e) a motor to drive the carriage axially;
- (f) a motor to rotate the center portion of support bar and the carriage;
- (g) a programmable controller external to the pipe which is capable of controlling the motors and thermal spray coating device.
4 more elements
Dependencies are inferred from the claim text.