Apparatus for manufacturing tread bands for vehicle tires
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United States of America Patent
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-
Mar 15, 2005
Grant Date -
Dec 19, 2002
app pub date -
Aug 21, 2002
filing date -
Apr 3, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for manufacturing tread bands for vehicle tires includes at least one primary extrusion head, a preforming device, at least one auxiliary extrusion head, an auxiliary feeding channel, and an extrusion die. The preforming device includes a primary preforming channel operatively connected to the at least one primary extrusion head. The auxiliary feeding channel is operatively connected to the at least one auxiliary extrusion head. The auxiliary feeding channel connects to the primary preforming channel. A direction of the auxiliary feeding channel forms an angle between approximately 30.degree. and 160.degree. relative to a direction of the primary preforming channel. The extrusion die is connected to the preforming device and includes an extrusion outlet. The auxiliary feeding channel connects to the primary preforming channel substantially near the extrusion outlet.
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Cited Art Landscape
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