US PATENT SUBCLASS 425 / 450.1
MOLD OPENING AND CLOSING MEANS AND SEGMENTED FEMALE MOLD

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

450.1MOLD OPENING AND CLOSING MEANS AND SEGMENTED FEMALE MOLD {6}
451  DF  .~> Including traveling mold carrier or support
451.2  DF  .~> Varying pressure and/or speed closing
451.3  DF  .~> Rack and pinion
451.4  DF  .~> Rotary cam
451.5  DF  .~> Articulated link {1}
451.7  DF  .~> Wedge or screw

DEFINITION

Classification: 425/450.1

(under the class definition) Apparatus comprising a female mold formed of separable segments and an associated mechanism that moves at least one of the segments relative to another into or out of mold forming relationship wherein the moving is sequential operation of the apparatus for forming a product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

182+, for apparatus comprising means for assembling and disassembling the shaping surface but for a purpose other than shaping an article.

406+, for dynamic means to force mold segments together under the resistance of work already within the mold cavity.

436+, for a shaping surface including means to release or remove a product therefrom, especially subclass 441 for such apparatus involving movable mold sections.

451.9, for dynamic means to hold previously closed mold segments together.

542+, for an injection molding apparatus including means to feed the stock material combined with means for opening and closing the mold parts, see especially subclasses 247+ for an injection molding type. SEE OR SEARCH CLASS

65, Glass Manufacturing,

357+, for a mold to shape molten glass having mold separating means.

164, Metal Founding,

339+, for means to assemble mold parts used to shape molten metal.

249, Static Molds,

160+, for a static female mold comprised of plural sections.