US PATENT SUBCLASS 65 / 99.3
.~.~.~.~.~ Maintaining molten metal temperature

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

17.1  DF  PROCESSES {32}
66  DF  .~ Forming product or preform from molten glass {7}
90  DF  .~.~ Sheet {7}
99.1  DF  .~.~.~ By or with pouring molten glass onto forming surface {2}
99.2  DF  .~.~.~.~ Utilizing molten metal forming surface {3}
99.3.~.~.~.~.~ Maintaining molten metal temperature

DEFINITION

Classification: 65/99.3

Maintaining molten metal temperature:

(under subclass 99.2) Processes in which temperature distribution is kept in a desired state.

(1) Note. Temperature uniformity through heat exchange, circulating or induced circulating currents included herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99.4, through 99.5+, for removing impurities from molten metal or modifying glass sheet dimension or property employing circulation.