Patent ID: 6212867
Filing Date: 2001-04-10
Classification: D02G

Abstract:
A false twist device for imparting twist to an advancing multifilament yarn in a false twist texturing machine so as to form a twisted yarn having a given diameter, comprisingat least three sets of disks that are each mounted on an axle for rotation in the same direction, with the axles being parallel to each other and arranged at the corners of an equilateral polygon and with the disks having peripheries which overlap in the center of the polygon so as to form a helical winding yarn path, and with the discs each comprising parallel inlet and outlet surfaces, and a circumferential surface defining the periphery thereof and extending between the inlet and outlet surfaces, and with said circumferential surface being formed by the surface of a sphere or torus having a radius of curvature of uniform length along the entire distance between the inlet and outlet surfaces and of a magnitude of at least 35 times the diameter of the twisted yarn.