Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common...
Patent
1998-04-03
1999-11-23
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
425132, 425145, 425573, 264245, 2642972, 26432818, B29C 4516
Patent
active
059890037
ABSTRACT:
Apparatus for molding consecutive streams of differently and homogeneously colored resin in a single mold. The apparatus is used to practice a method including supplying molten resin to a selected one of a plurality of resin passages, injecting colorant selected from a plurality of different colorants into the resin passage, mixing the molten resin and colorant in a mixing element disposed in the resin passage to form a mixture of selectively colored resin, injecting the mixture into the single mold to form a part from the selectively colored resin, and repeating the process by selecting a different resin passage and a different colorant. By this apparatus and method, differently colored parts can be molded without purging the resin passages between the molding, of the parts.
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Garrett Wade E.
Gray Chris H.
Niedzwiecki Greg E.
Tallmadge Bruce J.
Zalipski Michael R.
Lear Corporation
Silbaugh Jan H.
Staicovici Stefan
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