Method and apparatus for stuffer box crimping a...

Details Method and apparatus for stuffer box crimping a... Method and apparatus for stuffer box crimping a...

2007-01-30

2007-01-30

Vanatta, Amy B. (Department: 3765)

Textiles: manufacturing

Thread finishing

Surface modification of running length

C028S267000

Reexamination Certificate

active

11167809

ABSTRACT:
A method and an apparatus for stuffer box crimping a multifilament yarn consisting of one or more fiber bundles, wherein a conveying fluid is introduced into a yarn channel via a plurality of fluid feed channels, with each channel carrying a partial flow. The yarn is pneumatically taken into the yarn channel, and guided, and possibly twisted in the yarn channel by the conveying fluid, and subsequently advanced into a stuffer box chamber. Inside the stuffer box chamber, the yarn is formed into a plug which is compressed and advanced, with the conveying fluid emerging from the stuffer box chamber through side openings. To influence the actions of the conveying fluid on the yarn within the yarn channel, at least one of the fluid feed channels is configured such that the partial flows of the conveying fluid are introduced from the fluid feed channels into the yarn channel under the action of different overpressures.

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patent: 44 35 923 (1995-04-01), None

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