.~ Self-supporting particle making (e.g., bead, ball, granule, etc.) {4}
21.3
.~.~ Spheroidizing or rounding of solid glass particles
DEFINITION
Classification: 65/21.3
Spheroidizing or rounding of solid glass particles:
(under subclass 21.1) Processes directed to the reshaping of solid, irregular, or nonspherical particulate glass material wherein said irregularities are diminished or the particles are caused to become more spherical or rounded in shape without loss of material therefrom and by means other than use of a mold or shaping surface therefor and in which the individual and separate identities of the particles is maintained.
(1) Note. Patents in this subclass are generally directed to those processes in which heat is employed to soften the particles so as to permit the internal cohesive forces of the particles to effect said reshaping as defined.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
15, for processes under the class definition of spheroidizing particulate matter.
