Tip holder/flow guide element for cross-head dies
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United States of America Patent
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Jul 30, 1996
Grant Date -
N/A
app pub date -
Jun 10, 1994
filing date -
Jun 10, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A tip holder for assembly in a through axial bore of a cross-head die body to hold a die tip in a predetermined position and to control flow of a molten coating material about the die tip and filamentary member which is moved axially through the die for coating purposes. An annular groove is formed about the surface of the tip holder adjacent a radial bore in the body through which the molten material is introduced. In a first embodiment, the annular groove communicates through a plurality of axial grooves in the tip holder with an annular cavity through which the material flows to the die orifice through which the filamentary member and coating material exit the die body. In a second embodiment, the material flows from the annular groove over an annular lip at the forward end of the tip holder. Moreover, both the annular groove and lip are eccentric with respect to the central axis of the tip holder, and compound angles are provided on both the forward and rear sides of the lip, all cooperating to provide an evenly distributed flow of coating material about the cavity preparatory to being deposited on the wire.
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