Patent ID: 6237203
Filing Date: 2001-05-29
Classification: B29B,B29C,B29L,D04H,F16D,Y10T

Abstract:
A fibrous structure, comprising:a multitude of superposed fibrous layers including a first group having a lower fibrous layer and an upper fibrous layer;a multitude of Z-fiber bundles passing between fibrous layers within said multitude of fibrous layers, each fibrous layer within said first group having a portion of said multitude of Z-fiber bundles originating in that fibrous layer and penetrating subjacent fibrous layers without passing through all of said subjacent fibrous layers, said portions of Z-fiber bundles penetrating an increasing number of fibrous layers from said lower fibrous layer to said upper fibrous layer;said multitude of superposed fibrous layers including a second group having a second lower fibrous layer and a second upper fibrous layer; and,each fibrous layer within said second group having a portion of said multitude of Z-fiber bundles originating in that fibrous layer and penetrating subjacent fibrous layers without passing through all of said subjacent fibrous layers, said portions of Z-fiber bundles penetrating a decreasing number of fibrous layers from said second lower fibrous layer to said second upper fibrous layer.