Coating processes – Interior of hollow article coating
Reexamination Certificate
2007-09-18
2007-09-18
Fletcher, III, William Phillip (Department: 1762)
Coating processes
Interior of hollow article coating
C427S355000, C427S358000
Reexamination Certificate
active
11156090
ABSTRACT:
The present invention relates to the coating of tubes, and more particularly to a system and method for renovating the inner surface of deteriorated or pitted tubes to extend tube life and enhance performance. A method of the present invention includes first providing a coating material in a tube. A pig device is then positioned in the tube, the pig device being sized and orientated to disperse the coating material along the tube's inner service. The pig device is then motivated through the tube to apply the coating material to form a coating on the inner surface.
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Fletcher, III William Phillip
McCormick Paulding & Huber LLP
Plastocor, Inc.
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