Apparatus and method for removing undesired coatings from...

Details Apparatus and method for removing undesired coatings from... Apparatus and method for removing undesired coatings from...

B - Operations, Transporting

08

B

B08B 9/02 (2006.01) B08B 9/04 (2006.01)

Patent

CA 2075089

ABSTRACT OF THE DISCLOSURE A method of removing undesired coatings from the interior surface of tubes includes inserting a fluid-dynamically unstable impact head into the tube,providing or maintaining fluid flow through the tube and altering the length of a tether attached to the head to move the head along the tube. As a result of the fluid flow, the impact head moves chaotically within the tube, impacting theinterior surface of the tube and removing undesired coatings thereon. An apparatus for accomplishing the method preferably includes an impact head, a flexible retaining line and a carriage moveable within the tube, the carriage aiding in the centering of the retaining line.

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