Core tube for cross-head die apparatus
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United States of America Patent
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-
Feb 23, 1999
Grant Date -
N/A
app pub date -
May 12, 1997
filing date -
May 12, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A core tube for mounting in the axial bore of the body of cross-head die apparatus through which a filamentary member is drawn as a layer of flowable coating material is applied thereto. The coating material is injected through a radial bore having an axis intersecting an annular groove extending 360 degrees around the core tube. The annular groove communicates with a flow passage leading to the die orifice both through an annular space surrounding the forward end of the groove and through three axial grooves, two of which are of the same size and the other larger. The larger groove is positioned 180 degrees from the axis of the radial bore in the die body and 100 degrees from each of the small grooves.
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