Coating processes – Interior of hollow article coating – Coating by vapor – gas – mist – or smoke
Reexamination Certificate
2005-09-13
2005-09-13
Meeks, Timothy (Department: 1762)
Coating processes
Interior of hollow article coating
Coating by vapor, gas, mist, or smoke
C427S248100, C427S249200, C427S255120, C427S900000, C118S719000, C118S720000
Reexamination Certificate
active
06942893
ABSTRACT:
A porous substrate having a concave inside face and an outside face is disposed in an enclosure, and reactive gas is introduced into the enclosure to densify the substrate. At least a portion of the gas is divided into two non-zero fractions. The first fraction of the gas is fed to the inside face of the substrate. The second fraction of the gas is fed to only the outside face of the substrate. Alternatively, the first fraction of the gas is fed via a tooling extending into an inside volume defined by the concave inside face of the substrate.
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Delaurens Pierre
Delperier Bernard
Domblides Jean-Luc
Richard Jean-Philippe
Markham Wesley D.
Meeks Timothy
SNECMA Moteurs
Weingarten Schurgin, Gagnebin & Lebovici LLP
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