Patent ID: 9649667
Date: 2017-05-16
CPC Classifications: B05C,B08B,D07B,E01D,F16N

Claim:
1. Apparatus for surface treatment of an elongated object comprising: a frame; a squeegee unit housing rotatably mounted within the frame having a first and a second opening, the first and second openings being aligned in a longitudinal direction and sized to permit said elongated object to pass through the openings; a first squeegee mounted in the squeegee unit housing between the first and the second opening, defining a squeegee opening having a shape conforming to a cross-sectional shape of the elongated object to distribute a coating layer by wiping along one or more helical protrusions of the elongated object passing through said squeegee opening; a circumferential rigid guiding member rigidly mounted on the squeegee unit housing, longitudinally and radially displaced with respect to the first squeegee, for imparting rotational motion to the squeegee unit housing responsive to longitudinal movement of an elongated object having helical protrusions, wherein the squeegee unit housing is configured to rotate about the elongated object while the frame is moved along the elongated object in a longitudinal direction of the elongated object.