Two-stage method for producing belts
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United States of America Patent
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Issued Date -
May 21, 2009
app pub date -
Jul 22, 2006
filing date -
Sep 21, 2005
priority date (Note) -
Abandoned
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Abstract
In the two-step method according to the invention for producing belts from plasticatable material (5), a semi-finished product (2â?²) is produced in the first of the two steps and the finished belt is produced as an end product (2) from the semi-finished product (2â?²) in the second step by thermal shaping. To carry out the two-step method, two stations (6, 8) are provided. The first station (6) has a first rotatable mold wheel (14), a mold band (18), which is wrapped around a segment of the first mold wheel (14) with the aid of pressing and tension rollers (20, 22, 24) while keeping a hollow mold space (26) free, an extruder (10) and a filament feed (28). The second station (8) has a second mold wheel (16) and at least one pressing roller (34; 34a, 34b, . . . ). In particular for the production of belts for elevator/lifting technology (for example also for forklift trucks).
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