Coating apparatus – With cutting – punching or tearing of work – Web or sheet work
Patent
1977-09-26
1979-04-10
Reynolds, Wm. Carter
Coating apparatus
With cutting, punching or tearing of work
Web or sheet work
427237, C23C 1303
Patent
active
041482751
ABSTRACT:
Disclosed is an improved apparatus for depositing a coating on the internal surfaces of hollow articles by gas phase deposition. The apparatus typically includes a sheet metal enclosure having a manifold member which defines a first and second chamber therein. The first chamber is adapted to contain a powder mixture for generating a coating gas whereas the second chamber is adapted to house the articles to be coated. The manifold member includes hollow tubes or other connector means extending therethrough to connect the interior of the articles in gas flow relation to the first chamber where the coating gas is generated. A source external of the enclosure supplies carrier gas to the first chamber at a controlled flow rate via tube means. The carrier gas transports the coating gas generated in the first chamber through the manifold tubes and then into the internal passages of the article to effect deposition. The positive flow of coating gas through the internal passages provides a substantially uniform coating thickness over the entire internal surface area of each article.
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Benden Robert S.
Parzuchowski Richard S.
Reynolds Wm. Carter
Timmer Edward J.
United Technologies Corporation
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