Patent ID: 6112386
Filing Date: 2000-09-05
Classification: D02G,D02J

Abstract:
An apparatus for interlacing a multifilament yarn, said apparatus comprising:a housing, said housing having a yarn conduit defined therethrough through which said multifilament yarn is transported;a jet nozzle configured with said housing and defining a jet passage for a pressurized medium to flow therethrough into said yarn conduit, said jet nozzle further comprising a cross-sectional opening disposed generally transverse to and symmetrical relative to a longitudinal axis through said yarn conduit;said cross-sectional opening of said jet nozzle comprising a main channel disposed symmetric to said yarn conduit longitudinal axis, and at least two side channels wherein said side channels are disposed a sufficient lateral distance from and on either side of said yarn conduit longitudinal axis such that said side channels direct the pressurized medium to opposite peripheral zones of said yarn conduit; andwherein said main channel and said side channels are disposed and oriented so as to direct the pressurized medium in generally the same direction into said yarn conduit, and wherein said main channel directs a greater volume of the pressurized medium into a central region of said yarn conduit where substantially all of the interlacing of the multifilaments takes place as compared to said side channels that each direct a lesser volume of the pressurized medium to said peripheral zones where substantially no interlacing of the multifilaments takes place.