US PATENT SUBCLASS 65 / 276
.~.~ Tubular type preform

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

269  DF  GLASSWORKING OR PREFORM BY OR WITH REHEATING MEANS (E.G., FLAME SEVERING) {8}
275  DF  .~ Mechanical means to reshape preform {1}
276.~.~ Tubular type preform {5}
277  DF  .~.~.~> By resizing mandrel
278  DF  .~.~.~> Means supporting and orbiting preform {2}
281  DF  .~.~.~> By bending means
282  DF  .~.~.~> By internal forming means
283  DF  .~.~.~> By stretching means

DEFINITION

Classification: 65/276

(under subclass 275) Apparatus wherein the preform is of tubular shape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108+, for a process of reshaping a tubular preform, with retention of internal cavity.