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METHOD OF MANUFACTURING A FIBROUS STRUCTURE AND AN APPARATUS THEREFOR

  • US 20110081816A1
  • Filed: 11/14/2008
  • Published: 04/07/2011
  • Est. Priority Date: 11/16/2007
  • Status: Active Grant
First Claim
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1. A method of manufacturing a fibrous structure comprising the steps offixedly mounting a former on a shaft;

  • rotating the shaft about its longitudinal axis;

    providing a plurality of first feeds of fibrous material spaced along the length of the shaft;

    providing a second feed of fibrous material;

    applying the first feeds of fibrous material to the former in a direction tangential to the shaft as the shaft is rotated;

    applying the second feed of fibrous material to the former in a direction substantially parallel to the longitudinal axis of the shaft, the fibrous materials in the first feed and the second feed overlying one another as the shaft rotates and the thickness of the fibrous material applied to the former increases to form the fibrous structure; and

    causing selected lengths of the first and/or second feeds to be inserted into the body of the fibrous structure in a radial direction with respect to the shaft as the shaft is rotated to interconnect the overlying layers formed by the first and second feeds and thereby hold the fibrous structure together.

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