Plastic article or earthenware shaping or treating: apparatus – With mechanical means forming or expanding pores
Patent
1994-10-13
1996-03-12
Nguyen, Khanh P.
Plastic article or earthenware shaping or treating: apparatus
With mechanical means forming or expanding pores
425130, 425200, 425207, 425557, 425562, 425817R, B29C 4402, B29C 4553, B01F 502
Patent
active
054981514
ABSTRACT:
A mixing head for a molding machine includes a mixing chamber into which reaction materials are injected from nozzles communicating therewith, toward a closed end of the chamber and at acute angles with respect to the longitudinal axis of the chamber, the angles' apexes lying toward the closed end. The streams of injected material impact and mix, before entering an area of turbulence between the closed end of the specifically dimensioned chamber, and the points of communication where they are preliminarily reacted. Subsequently the material leaves the chamber by passing back through the point of impact, effecting further mixing. The doubly mixed material thereafter proceeds to a discharge passageway prior to entering a mold. The path described, resulting from the angle at which the streams are injected into the chamber, together with the configuration of the chamber, and the double passage of the material through the point of impact, assures superior mixing and reaction of the material before its discharge into a receiving mold.
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