Apparatus for coating a pipe surface

Details Apparatus for coating a pipe surface Apparatus for coating a pipe surface

B - Operations, Transporting

05

B

B05B 13/06 (2006.01)

Patent

CA 2302083

An apparatus for coating an interior surface of a conduit. The apparatus has a center rod with a substantially square cross-section that extends axially along the interior surface of the conduit. An index carriage slidably engages the substantially square cross-section of the center rod so that the index carriage maintains a fixed rotational orientation relative to the center rod. An index motor having a variable index position is carried by the index carriage. A coating device for coating the interior surface of the conduit is rotatably attached to the index carriage and connected to the index motor. As such, the coating device has an elevation position that corresponds to the index position of the index motor. A drive motor carried by a drive carriage propels the drive carriage longitudinally along the center rod. Generally, at least one intermediate carriage that slidably engages the substantially square cross-section of the center rod translates motion of the drive carriage to the index carriage so that the index carriage, and hence the coating device, moves longitudinally along the center rod.

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