US PATENT SUBCLASS 425 / 387.1
.~ Including shaping means comprising fluid pressure contacting work directly

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}
387.1.~ Including shaping means comprising fluid pressure contacting work directly {1}
388  DF  .~.~> Vacuum or suction means

DEFINITION

Classification: 425/387.1

(under subclass 383) Apparatus in which the reshaping is accomplished at least in part by means applying fluid pressure directly upon at least one surface of the preform to effect shaping thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44+, for a toroidal female shaping means and means to apply fluid pressure directly to a preform in a tire or tube reshaping, resizing, or vulcanizing apparatus.

80.1+, for an air felting type shaping means for forming self-sustaining webs or bodies of particulate material (e.g.., mica flakes, spiny rubber, etc..); and see the search notes thereunder.

326.1, for diverse distinct shaping or reshaping means including a downstream preform reshaping means which utilizes a fluid pressure differential.

342.1, for means contacting work by fluid pressure in (1) plural reshaping means, or (2) plural vulcanizing means with a preform support.

389, for a preform reshaping means or vulcanizing means including shaping surface or shape retaining surface comprising a fluid pressure actuated flexible diaphragm. 405.1+, for fluent or bulk material shaping means utilizing differential fluid pressure.

503, for preform reshaping means utilizing differential fluid pressure combined with means for bonding plural preforms.

522+, for blow molding by application of fluid pressure directly to move a tubular workpiece into engagement with a female mold.

SEE OR SEARCH CLASS

29, Metal Working,

421.1+, for a process of mechanical manufacture comprising shaping by direct application of fluid pressure.

65, Glass Manufacturing,

484+, for apparatus used to form glass fibers or filaments, particularly subclass 490 for means to measure, control, indicate, time, or test fluid pressure utilized with the glass fiber or filament forming apparatus; subclasses 300+ for glass article making apparatus comprising means applying pneumatic pressure inside of a discrete charge (e.g.., bottle blowing means, etc..); see the search notes thereunder.

164, Metal Founding,

253+, for metal founding apparatus including means to apply vacuum directly to work or to hold or manipulate a shaping means of that class.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes, 500+, for plastic or nonmetallic article shaping or treating comprising direct application of fluid pressure differential to permanently shape, distort, or sustain work, and subclasses 320+, for a process of shaping by applying pressure fluid to work against a solid forming surface.