Patent ID: 6052878
Filing Date: 2000-04-25
Classification: D02G,D02J

Abstract:
An apparatus for interlacing filaments into a yarn with the filaments intermingled with adjacent ones of the filaments and groups of the filaments to maintain unity of the yarn by frictional constraint between the filaments at periodic nodes along the yarn, comprising:a housing defining:a chamber adapted to receive fluid;a fluid inlet passage connected to receive fluid from the chamber; anda yarn passage connected to receive fluid from the fluid inlet passage, the yarn passage having a cross section perimeter, at least where the fluid inlet passage is connected to the yarn passage, having a shape selected from the group consisting of (i) a triangle having three rounded corners each independently with a radius r with r/R of about 0.50 to about 0.90 where R is a radius of a largest inscribed circle within the triangle, and the cross section perimeter being smooth or substantially smooth and having no discontinuities except where the fluid inlet passage is connected to the perimeter, (ii) a heart, and (iii) a pentagon.