US PATENT SUBCLASS 65 / 87
.~.~.~ With additional shaping, or severing, or perforating

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  DF  .~.~ Drawing and simultaneously forming hollow stock from molten glass {2}
87.~.~.~ With additional shaping, or severing, or perforating

DEFINITION

Classification: 65/87

(under subclass 86) Processes including an additional step of

shaping, severing or perforating of hard or soft glass.

(1) Note. The step of altering the shape of the hollow stock initially formed at the forming area only and while in contact with the molten glass to form a bait which functions to draw a hollow product of such shape is not considered a reshaping step as the initially drawn portion is considered transitory.

(2) Note. The step of stretching a hot tubular stock by exerting tension on the opposed ends thereof to cause separation of the stock into two parts is within the scope of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

112+, for a process of treating a glass preform combined with severing or perforating hard or soft glass; see the "Search Notes" thereunder.