US PATENT SUBCLASS 118 / 308
.~ Applying solid particulate material

Current as of: June, 1999
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118 /   HD   COATING APPARATUS

300  DF  PROJECTION OR SPRAY TYPE {14}
308.~ Applying solid particulate material {3}
309  DF  .~.~> Dust chamber type
310  DF  .~.~> Plural supplies of particulate material {1}
312  DF  .~.~> Recirculation or nonradiant heating of supply of particulate material

DEFINITION

Classification: 118/308

(under subclass 300) Coating apparatus specialized or peculiarly adapted to apply to the base a coating material in the form of fibers, granules, pellets, beads, flakes, platelets or powder.

(1) Note. The patents are placed in this and the indented subclasses on the basis of a particulate coating material being disclosed.

(2) Note. The fibers or particular material may be dry or moistened but where they are suspended in a liquid, see the appropriate subclasses below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for apparatus for the production and deposition of carbon in the presence of the base, such as, for example, by the burning or cracking of gaseous hydrocarbons in the presence of the base.

303, for coating apparatus for projecting a coating material against particulate type base material, and for apparatus for first applying an adhesive coating to particulate material before contacting the particulate material with the base to be coated.

620+, for apparatus directed to the employment of an electrostatic field to effect deposition or orientation of the particulate material. SEE OR SEARCH CLASS

222, Dispensing, appropriate subclasses, for apparatus for dispensing particulate material and see especially paragraph

numbers 12, 16 and 17 of the class definitions of that class (Class 222) for the location of other apparatus for sanding, abrading, throwing, spraying, scattering, and dusting of particulate material.

239, Fluid Sprinkling, Spraying, and Diffusing,

650+, for a container for nonfluid material and an associated scattering or strewing means whereby the material may be distributed over an extended area.

291, Track Sanders, appropriate subclasses, for means for applying sand, or like material, to vehicle wheel treads or to vehicle tracks, such as automobile roads or railway rails, or to both the wheel treads and tracks for the purpose of increasing the tractive effect between such wheels and roads or rails.

406, Conveyors: Fluid Current, appropriate subclasses for conveyors utilizing a pneumatic current for conveying particulate material from one place to another.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

80.1+, for apparatus including air-felting means for forming self sustaining bodies from particulate material.

427, Coating Processes,

180+, for coating processes wherein the coating is applied in the form of solid particles or fibers.