Coating apparatus – Gas or vapor deposition – Having means to expose a portion of a substrate to coating...
Patent
1978-11-07
1980-03-04
Hoffman, James R.
Coating apparatus
Gas or vapor deposition
Having means to expose a portion of a substrate to coating...
118727, 118728, C23C 1302, C23C 1312
Patent
active
041911288
ABSTRACT:
A vacuum metallizing apparatus for coating hollow articles such as tap bodies includes a carrier defining a shallow cylindrical chamber which is arranged for connection to a high vacuum source through valves. The carrier provides a plurality of ports with seatings in each of which a hollow article may be received with the interior of the article opening to the chamber. A filament assembly is mounted inside the chamber for rotation so that during evaporation of the coating metal on the filament, the filament sweeps past each port while the chamber including the interior of each hollow article is at high vacuum. Two different types of carrier are described, and a double or alternating type of arrangement of the carriers is described as well.
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