US PATENT SUBCLASS 65 / 277
.~.~.~ By resizing mandrel

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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  DF  .~.~ Tubular type preform {5}
277.~.~.~ By resizing mandrel

DEFINITION

Classification: 65/277

(under subclass 276) Apparatus including means internally of the stock to shape the bore thereof to an accurate cross-section (generally utilizing differential air pressure to force the softened glass to conform to the contour of the internal means).