Coating apparatus – With means to prepare work surface for coating
Patent
1989-07-17
1990-09-04
Hoag, Willard
Coating apparatus
With means to prepare work surface for coating
1510404, 51429, 51432, 118305, 118313, 118323, 118DIG11, 134199, 239DIG13, B05C 104
Patent
active
049534963
ABSTRACT:
An automated pipeline rehabilitation apparatus (10) is disclosed. The apparatus employs a centering assembly (24) with pivoting arms (26, 28) which can pivot between an operating position and a installation/removal position to allow the unit to be removed from a pipeline. Arcuate rings (38, 40) are mounted on the arms. Spray nozzles (44) are mounted on the arcuate rings for reciprocating arcuate motion along the rings to treat the pipeline. The nozzles (44) can be used to clean the pipeline and prepare the outer surface of the pipeline with high pressure water jets in training abrasives. The nozzles (44) can also be used to apply a coating, preferably a polyurethane coating to the pipeline.
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Rogala Stanely J.
Taylor Sidney A.
CRC-Evans Pipeline International, Inc.
Hoag Willard
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