Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Patent
1983-09-21
1984-12-04
Morgenstern, Norman
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
4272481, 4272556, 118715, 118DIG5, C23C 1100
Patent
active
044864736
ABSTRACT:
A massive article is coated by chemical vapor deposition in a chamber having a horizontal cross-sectional configuration generally matched to the horizontal cross-sectional configuration of the article. For an article which is relatively thin between a pair of opposed faces so that the article is subject to breakage by the force of surging particles of a fluidized particle bed, breakage is reduced in a coating chamber having vertical sidewalls that generally parallel the faces of the article and relatively narrow endwalls. The article is centered in the chamber with its faces parallel to the sidewalls leaving a region between the faces that accommodates an adequate flow of carrier gas and coating vapor without requiring a large charge of particles that would create undue surging force against the article.
REFERENCES:
patent: 3138435 (1964-06-01), Diefendorf
patent: 3197328 (1965-07-01), Jung et al.
patent: 3382093 (1965-05-01), Nack
patent: 3399969 (1968-09-01), Bokros et al.
patent: 3593678 (1971-07-01), Miller
patent: 3834927 (1974-09-01), Putney
Gulden Terry D.
Kaae James L.
Yang Ling
GA Technologies Inc.
Morgenstern Norman
Steinberger, Jr. Robert J.
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