Abstract: The present invention provides a tubular support (12) comprising a composite layer of resin and longitudinal arranged first fibers (66), said tubular support (12) further comprising longitudinal arranged second fibers (68) that are concentrated in discrete domains along the circumference of the tubular support, said second fibers having a Tensile modulus that is higher than the Tensile modulus of said first fibers.
Type:
Grant
Filed:
March 10, 2008
Date of Patent:
January 1, 2013
Assignee:
Frangible Safety Posts Limited
Inventors:
Gerard S. Boyce, Nigel A. Finney, Ralph T. Middleton, Nicholas L. Weatherby