US PATENT SUBCLASS 65 / 108
.~.~ Reshaping of tubular preform, retaining cavity

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

17.1  DF  PROCESSES {32}
102  DF  .~ Reshaping or surface deformation of glass preform {5}
108.~.~ Reshaping of tubular preform, retaining cavity {2}
109  DF  .~.~.~> During rotation
110  DF  .~.~.~> Utilizing vacuum or gas pressure

DEFINITION

Classification: 65/108

(under subclass 102) Processes comprising reshaping a tubular-shaped preform in such a manner that its hollow characteristic is retained.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67, for a process of forming a hollow product and converting it to a sheet.

93+, for a process of forming a sheet and reshaping the formed sheet.

276+, for means for reshaping hollow stock by or/with reheating means.

292+, for cylindrical stock reshaping means.