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US 5,700,490 AGranted
Apparatus and method for the thermal treatment of fibers
AssigneeBarmag AG
InventorHansjorg Meise
Life of this patent
Estimating the term…
Abstract
The invention relates to a cooling assembly for a fiber spinning machine, which forms a cooling zone for the fibers and has openings, through which a cooling fluid flows to the fibers. The cooling assembly is formed by a plurality of overlying annular elements. Arranged between the elements are spacers so as to permit air to flow between the elements into the cooling assembly.
Claims23
A cooling tube for cooling synthetic filaments as they advance downwardly from a spinneret of a melt spinning machine, comprising
- a generally tubular wall which defines a central axis and along which the synthetic filaments are adapted to advance in an axial direction, with said wall comprising a plurality of superposed annular elements which coaxially overlie each other in a spaced apart arrangement and so as to define an annular gas channel between each adjacent pair of annular elements.
A melt spinning apparatus for extruding and spinning a synthetic material to form a plurality of filaments, comprising
- melt spinning means including a spinning nozzle for continuously extruding a plurality of synthetic filaments downwardly through the spinning nozzle, and
- a cooling tube disposed below said spinning nozzle, said cooling tube comprising a generally tubular wall which defines a central axis and along which the synthetic filaments advance in an axial direction from said spinning nozzle, with said wall comprising a plurality of superposed annular elements which coaxially overlie each other in a spaced apart arrangement and so as to define an annular gas channel between each adjacent pair of annular elements.
Dependencies are inferred from the claim text.