US PATENT SUBCLASS 65 / 84
.~.~.~ By direct gaseous contact


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}
83  DF  .~.~ With positive cooling of product or molten glass at forming area {2}
84.~.~.~ By direct gaseous contact


DEFINITION

Classification: 65/84

(under subclass 83) Process wherein the cooling comprises contacting the glass with a gaseous material of lower temperature than the glass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88, for a process involving injecting gas internally of a hollow cylinder during drawing thereof to prevent collapse of the hollow cylinder.

119, for a process of annealing glass involving heating or cooling the glass by direct contact with flowing gas.