US PATENT SUBCLASS 65 / 86
.~.~ Drawing and simultaneously forming hollow stock from molten glass

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}
86.~.~ Drawing and simultaneously forming hollow stock from molten glass {2}
87  DF  .~.~.~> With additional shaping, or severing, or perforating
88  DF  .~.~.~> Vertically drawing upwardly while applying fluid internally of stock

DEFINITION

Classification: 65/86

(under subclass 66) Processes for a process of drawing molten glass into hollow stock, usually glass cylinders, the shape of which being initially defined by the shape of a bait, and see the Glossary for a definition of "drawing".

SEE OR SEARCH THIS CLASS, SUBCLASS:

187+, for means for drawing a tube from a molten bath.