Coating processes – Spraying
Reexamination Certificate
2002-09-30
2008-08-12
Bashore, Alain L (Department: 1792)
Coating processes
Spraying
C427S427300, C427S427400, C427S427500, C118S317000
Reexamination Certificate
active
07410674
ABSTRACT:
A method of servicing an electro-dynamic apparatus (10) such as a traction motor of a locomotive wherein a degraded surface (52) of electrical insulation (50) in the interior of the apparatus is spray coated with a layer of a sealing material (56). The service is provide without the necessity for removing or disassembling the apparatus by inserting a nozzle (64) of a spraying device (60) through an access opening (42) in the frame head (20) of the apparatus. The sealing material is delivered to the nozzle through a flexible delivery tube (66) having an inner tube (80) defining a passageway (82) for the sealing material and a concentric outer tube (84) defining an annular passageway (86) for compressed air for propelling the sealing material from the nozzle.
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Mo Rihong
Rosenquest Kenneth Lee
Bashore Alain L
Beusse Wolter Sanks Mora & Maire, P.A.
General Electric Company
Maire David G.
Wawrzyn Robert M.
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