Plastifier with disk and pin throttle for plastic materials
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United States of America Patent
Stats
-
Nov 8, 1994
Issued Date -
N/A
app pub date -
Mar 14, 1994
filing date -
Jun 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastifying extruder of the double-screw type, to avoid dead zones in the flow, has at its throttle location throttle disks on the screws formed with outwardly open recesses angularly equispaced on the disks. Pins distributed around the screws in the throttle region project radially into gaps between the disks and can penetrate to a greater or lesser extent into these gaps to provide a variable flow cross section.
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Cited Art Landscape
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