US PATENT SUBCLASS 425 / 539
.~.~ With means to support molds for movement with continuously moving work

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

522  DF  FEMALE MOLD AND MEANS TO SHAPE PARISON DIRECTLY BY INTERNAL FLUID PRESSURE, (E.G., BLOW MOLD, ETC.) {10}
538  DF  .~ Plural female molds and means to shape parison at each directly by internal fluid pressure {2}
539.~.~ With means to support molds for movement with continuously moving work

DEFINITION

Classification: 425/539

(under subclass 538) Apparatus including means to permit continuous travel of preformed hollow workpieces and means to move the shaping surfaces and the fluent medium supply means in the same direction and at the same speed so that there is no relative movement between the preformed hollow workpiece and the corresponding shaping surface at the time of molding.

(1) Note. The closed, radially inwardly facing, shaping surface (female mold) of this subclass is stationary with respect to the molded product at the instant that molding is completed.