US PATENT SUBCLASS 425 / 393
.~.~ Mandrel to interiorly support work and means urging work against mandrel

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

383  DF  PREFORM RESHAPING OR RESIZING MEANS: OR VULCANIZING MEANS INCLUDING A CONFORMING PREFORM SUPPORT {10}
392  DF  .~ Rod or tubular preform {1}
393.~.~ Mandrel to interiorly support work and means urging work against mandrel

DEFINITION

Classification: 425/393

(under subclass 392) Apparatus comprising a mandrel type supporting and shaping means placed within the preform and additional means exerting a force on at least a portion of the preform urging it against the mandrel.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

296+, for glass manufacturing apparatus comprising forcing means both internal and external of a cylindrical glass preform reshaping.