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US 4,277,436 AGranted
Method for forming filaments
AssigneeOwens-Corning Fiberglas Corporation
InventorsHashmuk G. Shah, G. Richard Machlan
Life of this patent
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Abstract
Method and apparatus for forming filaments are provided by centrifugally forming a veil of primary fibers or streams of material and moving a fluid along a path within the veil at a velocity sufficient to attenuate said primary fibers into filaments.
Claims8
A method of forming filaments comprising:
- forming a generally cylindrical rotating veil of interengaging primary fibers from a rotor containing filament forming material;
- advancing said veil substantially along a path of advancement along the axis of rotation of said rotor;
- supplying a fluid to the interior of the veil by a conduit having a discharge orifice within said veil;
- providing a continuous surface of revolution within said veil along the path of advancement of said veil;
- and moving the fluid over the exterior of said surface according to the Coanda effect along the axis of rotation into engagement with said veil to attenuate said primary fibers into filaments.
2 more elements
Dependencies are inferred from the claim text.