US PATENT SUBCLASS 425 / 419
.~.~ Including means varying pressure of male shaping member during pressing

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

406  DF  PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS {6}
412  DF  .~ Male shaping member and female mold {11}
419.~.~ Including means varying pressure of male shaping member during pressing

DEFINITION

Classification: 425/419

(under subclass 412) Apparatus combined with means to change the compressive force applied to a material during a continuous pressure application.