DEVICE FOR THE STEAM TREATMENT OF A MOVING FIBER STRAND
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United States of America Patent
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app pub date -
Apr 16, 2007
filing date -
Oct 16, 2004
priority date (Note) -
Abandoned
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Abstract
The invention relates to a device for the steam treatment of a moving fiber strand, comprising an elongated steam chamber. To seal the steam chamber, a pair of feed rollers is connected to and seals a feed chamber on a feed side in such a way that the nip constitutes the feed into the steam chamber. The opposing exit side is equipped with a pair of exit rollers, which forms a second nip and which is connected to and seals the other end of the steam chamber by means of an exit chamber, in such a way that the second nip constitutes the exit from the steam chamber. The feed roller pair and the exit roller pair are respectively formed by a fixed sealing roller and a displaceable sealing roller. The aim of the invention is to achieve a seal between the sealing roller and the associated sealing chamber, irrespective of the operating position of the displaceable roller. To achieve this, the feed chamber and/or exit chamber comprise(s) a sealing surface lying opposite the roller circumference of the displaceable sealing roller, thus sealing the nip, and a displaceable sealing strip, which is located in said sealing surface and is pre-stressed against the circumference of the sealing roller.
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