Patent ID: 9339670
Filing Date: 2016-05-17
CPC Classification: A62C,B05B,B08B,Y10S

Claim Text:
1. A system for applying a fluid chemical treatment to a vertical column, comprising: a spray frame configured as a cylindrical shell with upper and lower ends, the spray frame configured to concentrically surround a length of the column with a substantial annular gap between an inner cylindrical surface of the spray frame and an outer surface of the column; a centering guide disposed on the inner surface of the spray frame configured to maintain uniformity of the annular gap; an array of fluid spray nozzles disposed about the inner cylindrical surface of the spray frame, and connected to a pressurized fluid chemical source, the array of fluid nozzles arranged to apply a uniform spray coating of the fluid chemical treatment to a portion of the column surrounded by the spray frame; and a mobility system connected to the spray frame and configured to translate the spray frame along the column in a level orientation while applying the fluid chemical treatment, the mobility system comprising a winching apparatus attached to the end of a truck mounted fully articulated aerial boom, the winching apparatus including suspension frame members configured to be positioned about the column by the aerial boom in a horizontal level orientation at a position above the spray frame, and at least three suspension cords attached to the upper end of the spray frame at evenly spaced suspension points and extending upward from the spray frame to the suspension frame members of the winching apparatus, wherein the winching apparatus is configured to raise and lower the spray frame by simultaneously pulling in or letting out each suspension cord at an equal rate.