US PATENT SUBCLASS 65 / 17.3
.~ With shaping of particulate material and subsequent fusing of particles

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

17.1  DF  PROCESSES {32}
17.3.~ With shaping of particulate material and subsequent fusing of particles {3}
17.4  DF  .~.~> Including flame or gas contact
17.5  DF  .~.~> Employing nonoxide additive
17.6  DF  .~.~> With treatment subsequent to fusing

DEFINITION

Classification: 65/17.3

With shaping of particulate material and subsequent fusing of particles:

(under subclass 17.1) Processes combined with a step of associating a mass of individual discrete particulate material and shaping said mass and either during or subsequent to the shaping operation, heating the material to effect fusing of the particles one to another.

(1) Note. Processes claiming depositing particulate material into a mold cavity which its intended function is not to shape the mass of particles prior to fusing them but intended to shape a molten or plastic mass formed by heating the particles are classified elsewhere. See search notes below.

(2) Note. This subclass includes, for example, patents claiming a step of shaping a mass of glass particles which are fused together in a manner to preserve the shape of the mass of glass particles combined with a subsequent

glassworking or treating operation (e.g., pore forming or annealing, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

65, for processes claiming depositing particulate material into a mold cavity which its intended function is not to shape the mass of particles prior to fusing them but intended to shape a molten or plastic mass formed by heating the particles.

68+, for processes of forming an article from molten glass and see (1) Note above.

114, for glassworking apparatus combined with means to shape an article from particulate material. SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

62.2+, for laminating processes under the class definition, which includes a step of forming a lamina or laminae by bulk deposition of discrete particles to form a self-sustaining article (e.g., fiber batt, etc.).

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

43+, and 603+ for processes within the class definition for vitrification, sintering, or firing of inorganic materials, which may include shaping of clay or glass particles prior to firing to form a self-supporting article. See the class definition of Class 65, particularly References to Other Classes and the notes to Classes 264 and 425. See also subclass 6 for processes under the class definition for forming solid particulate material directly from a molten or liquid mass (other than glass) with subsequent uniting of the formed particles; and subclass 125 for processes directed to a uniting step not otherwise provided for.