Axial or conical spiral distributor for a blown film line and manufacturing method of a multilayered film
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 14, 2008
app pub date -
Jan 31, 2008
filing date -
Feb 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to spiral distributors on axial or conical spiral blow heads. The invention has discovered that when the circumference of a spiral flock in a spiral mandrel slot increases, it can be advantageous if the height of the spirals can be limited in such a manner that a similar surface covered with spirals is created in the twisted mandrel slots. The invention calls this surface 'active surface'. A plurality of aspects of the invention, which specify different rules regarding how to implement the basic observation, are presented.
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