Method for producing a twisted yarn by an integrated spinning and twisting process according to the two-for-one principle as well as device for performing the method

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United States of America Patent

PATENT NO 6047537
SERIAL NO

09260520

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Abstract

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In a method for producing a twisted yarn by an integrated spinning and twisting process, individual spun yarns are spun from loose fiber material in at least two spinning devices. The spun yarns are combined and guided in a first direction and subjected to a common first twisting to form a once twisted yarn. The once twisted yarn is then guided in a second direction opposite the first direction according to the two-for-one twisting principle, to form a yarn balloon in order to subject the once twisted yarn to a second twisting. The resulting yarn is then fed through a centering point to a winding device. The loose fiber material is fed into the annular chamber, that is coaxial to the yarn balloon and in which the yarn balloon freely rotates, and is guided substantially radially through the yarn balloon such that the yarn of the yarn balloon directly passes through the loose fiber material. The loose fiber material is then conveyed from the annular chamber substantially radially inwardly into the spinning devices by a pressure gradient.

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Patent Owner(s)

Patent OwnerAddress
VOLKMAN GMBH & COWEESERWEG 60 47804 KREFELD

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beckmann, Markus Krefeld, DE 7 25
Greis, Roland Tonisvorst, DE 3 2
Kross, Stefan Viersen, DE 9 48
Ruetten, Wilfried Wegberg, DE 1 1
Spix, Guido Kaarst, DE 22 102

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