Title: Method and apparatus for forming glass beads

Abstract: Glass beads are formed with a high rate of production by jetting an array of molten glass streams arranged around a central zone. The beads which are formed are caught in a quench bath, where they are immediately dispersed by a high-velocity radial stream of fluid from a nozzle located within the central zone. A secondary, low-velocity fluid stream is provided in the quenching bath to prevent localized over-heating.

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Inventors: Cone, Eugene J. (Cheswick, PA, US)

Application Number: 609646
Filing Date: 1975-09-02
Publication_date: 1976-12-14
Assignee: PPG Industries, Inc. (Pittsburgh, PA)
Primary Class(es): 65/21.2 65/116, 65/142, 264/3.4, 264/3.6
Other Classes:
US Patent Ref:

3361549	Jan, 1968	Nakajima	65/21.
3422988	May, 1969	Williams	65/21.
3843340	Oct, 1974	Cone	65/21.
3877960	Apr, 1975	Knoss	65/21.

Other Refs:
Primary Examiner: Lindsay, Jr., Robert L.
Assistant Examiner:
Attorney: Millman; Dennis G.