Patent ID: 6626376
Filing Date: 2003-09-30
Classification: B05B,Y10S

Abstract:
A spray coating device for spray coating an exterior surface of a pipeline and supported on said pipeline for longitudinal movement along the pipeline, said spray coating device comprising:a pair of arcuate arms on opposed sides of said pipeline mounted for pivotal movement between an operative position encircling the pipeline and an inoperative position removed from the pipeline, each arm having radially spaced inner and outer guides; a flexible endless drive member mounted on each arm and extending for about 180 degrees along the associated arm between said inner and outer guides thereon; a spray nozzle carriage for each arm mounted for back and forth movement along said inner and outer guides between ends of said arm, each carriage having a spray nozzle thereon directed towards the pipeline for spraying a coating on the pipeline; and a connecting member between each carriage and the associated flexible endless drive member to connect the drive member in driving relation to said carriage, said connecting member effective at the ends of the arm to transfer the driving force for said carriage between inner and outer runs of said endless drive member to permit a continuous movement of said endless drive member for the entire travel cycle of said carriage.