Coating apparatus – Gas or vapor deposition – With treating means
Reexamination Certificate
2006-01-10
2006-01-10
Zervigon, Rudy (Department: 1763)
Coating apparatus
Gas or vapor deposition
With treating means
C118S7230FE, C156S345390
Reexamination Certificate
active
06983718
ABSTRACT:
An electron beam physical vapor deposition (EBPVD) apparatus and a method for using the apparatus to produce a coating material (e.g., a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber and onto a coating material within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the shape and intensity of the electron beam pattern on the coating material and on a crucible containing the molten coating material.
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Bruce Robert William
Evans, Sr. John Douglas
General Electric Company
Hartman Domenica N.S.
Hartman Gary M.
Narciso David L.
Zervigon Rudy
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