Patent ID: 8359996
Filing Date: 2013-01-29
Classification: B05C,B05D,F16L,Y10S

Abstract:
1. A system for coating an inner surface of a tube, comprising: a pig device with a main body portion devoid of any hollow interior cavity; a coating applicator disposed at a first end of the main body portion, said first end being the end of said pig that is first inserted into said tube to be coated, said coating applicator being manufactured from a compressible material enabling the passage of a coating material beyond the coating applicator; an end flange disposed at a second end of the main body portion, said end flange terminating in a flat and continuous rear surface—and forming a continuous, solid edge, said solid edge being capable of forcing said coating material into erosion elements and pits in said inner surface of said tube while wiping away excess coating material to result in a thin, single layer coating formed on said inner surface of said tube, said thin, single layer coating being sufficiently thin so as to not significantly inhibit heat transfer capabilities of said tube.