US PATENT SUBCLASS 65 / 130
.~.~.~ With or by differential gas pressure

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

17.1  DF  PROCESSES {32}
126  DF  .~ Discharging molten glass downwardly through orifice {3}
129  DF  .~.~ Regulating or arresting of flow into or out of orifice {2}
130.~.~.~ With or by differential gas pressure {1}
131  DF  .~.~.~.~> With segregation prior to discharge

DEFINITION

Classification: 65/130

(under subclass 129) Processes in which the rate of or the arrest of flow of molten glass through an orifice is affected by varying the pressure of a gas on the molten glass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

329, for apparatus for applying a differential gas pressure to glass to assist its flow through an orifice below the melt level.