Patent ID: 7513970
Filing Date: 2009-04-07
Classification: B29C,E04C,Y10T

Abstract:
1. A method for fabrication of a reinforcing blank from a composite material, wherein the reinforcing blank is fabricated of longitudinal fibres and a sheathing layer of a material selected from the group consisting of fibre and foil, and wherein fibre thread is moistened with a binding agent, comprising the following steps: reeling the moistened fibre thread onto a rotational plate comprising a number of holding means for fibre threads, to a blank bundle in a closed, approximately circular shape, comprising a layer of desired thickness of longitudinal, parallel fibres, whereby all longitudinal, parallel fibres in the layer achieve approximately equal axial tightening; enveloping an outer layer of a material selected from the group consisting of fibre threads, foil/band and mixture thereof, around the layer of longitudinal fibres; and finishing the fabrication of the prepared blank in a second forming process, wherein said enveloping comprises winding on itself, an outer layer of a material selected from the group consisting of fibre threads, foil/band and mixture thereof, in a helical form around the layer of longitudinal fibres.