Patent ID: 7442256
Filing Date: 2008-10-28
Classification: B08B,B24C,Y10S

Abstract:
1. An apparatus for spraying maintenance enhancing material onto the periphery of a tubular member positioned above a ground surface, comprising: a) an apparatus frame which is longitudinally displaceable with respect to the tubular member; b) at least one stabilizer member rigidly connected to said frame; c) at least one rotatable member supported and radially restrained by a plurality of guide rollers rotatably mounted on the at least one stabilizer member, wherein each of the at least one rotatable member, upon application of a torque thereto, is rotatable relative to the corresponding stabilizer member, following immobilization of said frame; d) at least one nozzle which is displaceable along and/or around the tubular member for generating a spray of maintenance enhancing material onto the periphery of the tubular member, each of the at least one nozzle being carried by a corresponding conduit rotatably mounted within a sheathing which is connected to the at least one rotatable member in such a way that e) means for delivering maintenance enhancing material to said at least one displaceable nozzle, wherein torque is transmitted to each of the at least one rotatable member by a plurality of driven sprockets mounted on the outer side of each of the at least one stabilizer member, said plurality of driven sprockets being engageable with a toothed transmission device mounted between two plates from which a rotable member is formed.