US PATENT SUBCLASS 425 / 394
.~ Coacting shaping surfaces (e.g., pressure surfaces, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


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}
394.~ Coacting shaping surfaces (e.g., pressure surfaces, etc.) {4}
395  DF  .~.~> Opposed, registering, coacting mold cavities
396  DF  .~.~> Corrugating platens or dies
397  DF  .~.~> Including particular handling means for preform
398  DF  .~.~> Relatively reciprocating plunger and female mold {3}

DEFINITION

Classification: 425/394

(under subclass 383) Apparatus comprising cooperating shaping surfaces which confine a preform to retain a desired configuration thereof or which exert a compressive force to impart a change in configuration of a preform.

(1) Note. A ball type impact member coacting with a preform support is considered to be a shaping surface under this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35+, for similar devices specially adapted for the

manufacture of tires, tubes or drive belts.

327, for an extruder in combination with down-stream press type reshaping or vulcanizing means.

335+, for sets of shaping couples including an endless surface for press reshaping or vulcanizing. 339, for a gang press comprising plural parallel leaves or platens for reshaping or vulcanizing preforms.

363+, for a press reshaping means or vulcanizing means including an endless surface type (e.g.., roll, belt, etc..) reshaping surface.

393, for co-acting shaping surfaces comprising a mandrel inside of a tubular preform reshaping apparatus.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

229+, for diverse distinct glass working apparatus including a preform reshaping means, subclass 244 for spaced preform reheating means with reshaping means, subclasses 275+ for a mechanical means to reshape a glass preform combined with a reheating means and subclasses 286+ for press means to reshape a glass preform; see the search notes under subclasses 229+.