Coating apparatus – Gas or vapor deposition – Crucible or evaporator structure
Reexamination Certificate
2006-01-17
2006-01-17
Bueker, Richard (Department: 1763)
Coating apparatus
Gas or vapor deposition
Crucible or evaporator structure
C118S715000
Reexamination Certificate
active
06986814
ABSTRACT:
A gas distributor suitable for introducing a carrier gas at the top of a coating container used to provide a metallic coating on articles. The gas distributor includes a gas inlet and a gas outlet head in communication with the gas inlet for receiving a flow of gas from the gas inlet. A plurality of gas outlets through which the gas flow exits as a gas stream are spaced along the peripheral surface of the gas outlet head. A plurality of gas deflectors, each proximate to one of the gas outlets, at least initially direct the gas stream exiting the gas outlet in at least a generally centripetal path. This gas distributor can be used in vapor coating apparatus having a coating container, at least one holder for each article to be coated positioned within the coating container and below the gas outlet head of the gas distributor and at least one holder for the source of the metallic coating positioned within the coating container and below the gas outlet head of the gas distributor. A method is also provided for introducing the carrier gas as a plurality of carrier gas streams proximate the top of the coating container so that each carrier gas stream flows at least initially in at least a generally centripetal path, as well as a method for coating the articles with a metallic coating in the coating container.
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Webster's New collegiate Dictionary, G&C Merriam Co., 1975, p. 181.
Brown Terri K.
Cove Edward J.
Schmidt Richard L.
Wheat Gary E.
Bueker Richard
General Electric Company
Guttag Eric W.
Jagtiani & Guttag
Ramaswamy VG
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