US PATENT SUBCLASS 427 / 446
SPRAY COATING UTILIZING FLAME OR PLASMA HEAT (E.G., FLAME SPRAYING, ETC.)

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

446SPRAY COATING UTILIZING FLAME OR PLASMA HEAT (E.G., FLAME SPRAYING, ETC.) {7}
447  DF  .~> Organic containing coating
448  DF  .~> Nonuniform or patterned coating
449  DF  .~> Continuous feed solid coating material (e.g., wire, rod, or filament, etc.)
450  DF  .~> Inorganic carbon containing coating, not as steel (e.g., carbide, etc.) {1}
452  DF  .~> Silicon containing coating
453  DF  .~> Metal oxide containing coating {1}
455  DF  .~> Metal or metal alloy coating {1}

DEFINITION

Classification: 427/446

SPRAY COATING UTILIZING FLAME OR PLASMA HEAT (E.G., FLAME SPRAYING, ETC.):

(under the class definition) Processes wherein (1) a gaseous flame is used to heat and project a coating material toward a substrate or (2) a coating material is converted to or engulfed by a highly ionized gas composed of ions, electrons and neutral particles in which the positive ions and negative electrons are roughly equal in number, and projected on to a substrate

(1) Note. Torch spraying is considered a form of flame spraying and is included in this and indented subclasses.

(2) Note. Electric arc metal spraying is properly classified in this and indented subclasses.

(3) Note. Explosive or detonation spray vaporization, wherein the vaporized coating is applied in the form of a spray is properly classified in this and indented subclasses.

(4) Note. Thermal spraying is properly classified in this

and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

596, for coating processes utilizing laser heat transfer, which are often referred to as explosive vaporization. SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

192.38, for vacuum arc discharge coating, utilizing processes for the deposition of a coating onto a substrate within a vacuum environment by the action of an arc discharge between an anode and a cathode wherein the source material is the cathode, per se, or the source material is on the cathode.

219, Electric Heating, particularly

73.11, 73.21, and 76.1+ for coating operations that involve a build-up of metal coating on a metal workpiece and wherein an arc between an electrode and the work is utilized.