Direct transfer conveying mechanism
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United States of America Patent
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-
N/A
Issued Date -
Feb 6, 2003
app pub date -
Aug 6, 2001
filing date -
Aug 6, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A conveying device that permits the continuous accumulation and intermittent injection a molding material is herein disclosed. The conveying device comprises a housing having a bore with an inlet and an outlet and a shaft reciprocable disposed within the bore. The shaft and bore are constructed and arranged to form an annular space therebetween. A slip ring is slidably captured on the reciprocable shaft and may travel longitudinally on the shaft between a forward position and a rearward position. When the shaft is retracted from the bore, the slip ring moves to its forward position on the shaft and the molding material may flow between an inner surface of the slip ring and the shaft. When the shaft is inserted into the bore, the slip ring moves to its rearward position and the slip ring acts as a piston head and forces the molding material from the bore and into a downstream molding or handling mechanism.
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