US PATENT SUBCLASS 425 / 408
.~ Opposed, registering, coacting mold cavities


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

406  DF  PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS {6}
408.~ Opposed, registering, coacting mold cavities


DEFINITION

Classification: 425/408

(under subclass 406) Apparatus comprising facing shaping cavities which coact to press fluent stock into a a desired shape, the cavities having meeting portions of co-extensive area.

(1) Note. Excluded under the definition is a device in which either of the cavity forming means includes a protuberance which enters into the other cavity. Such apparatus will be found in subclasses 398+ or 412, for example.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35+, for coacting mold halves having a toroidal configuration in combination with internal means holding a preform thereagainst.

47, for a sectional female mold of toroidal configuration having a locking or clamping means.

116, for sets of opposed registering coacting female molds which not only shape fluent material but include a feature to form a composite article using a preform.

233+, for sets of press couples each set comprising registering coacting female molds. 278, for opposed coacting mold cavities serving as the ice cream scoops.

296, for a preform reshaping means comprising opposed female mold sections with cooperating, registering cutting edges.

395, for coacting shaping surface in preform reshaping or vulcanizing means comprising opposed, registered female

cavities.

425+, for "slush" molding means for apparatus that is similar in structure, especially subclasses 433, 434 and 435, which are used to make hollow articles (e.g.., a ball, doll-head, etc..).

450.1+, for subcombinations of injection molding apparatus having similar structure but diverse operation.

542+, for similar structure in injection molding apparatus including means to charge fluent stock under pressure.