Apparatus and method of decorating articles using a transport screw with a varying screw flight pitch
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United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Sep 15, 1998
filing date -
Oct 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an apparatus and method of decorating articles which are transported on article carriers through a treatment station along a transport path which is linear at least over a portion of its extent, the article carriers are transported through the linear portion of the transport path by a screw having a screw flight adapted to engage with a respective article carrier required to move along the linear portion of the transport path. Rotation of the screw advances the respective article carrier along the linear transport path portion. The screw preferably rotates at a constant speed so that changes in the speed of movement of the article carrier along the linear portion of the transport path are implemented by variations in the screw flight pitch over the length of the screw.
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