Patent ID: 6872340
Filing Date: 2005-03-29
Classification: B29C,B29D,B29L,Y10T

Abstract:
1. A method of forming a reinforced core structure for use in a resin transfer molding process comprising: (a) providing an expanded core having a longitudinal axis; (b) braiding a first set of fibers from a first end of the expanded core to a first location on the expanded core; (c) reversing the direction of the braiding of the first set of fibers at the first location and continuing braiding back to the first end so that the first set of braided fibers is braided back upon itself to form a first dual layer fiber structure; (d) braiding a second set of fibers over the first set of braided fibers from the first end beyond the first location to a second location; and (e) reversing the braiding direction of the second set of fibers at the second location back toward the first end so that the second set of braided fibers is braided back upon itself to form a second dual layer fiber structure.