Patent ID: 8617694
Filing Date: 2013-12-31
Classification: B29C,B29L,B32B,B64C,B64F,Y02T,Y10T

Abstract:
1. A repair patch for reworking an inconsistent area of a composite structure, comprising: a patch body adapted to cover the inconsistent area and having a first patch region, a second patch region outside the first patch region and a first separation zone between the first patch region and the second patch region, with the first patch region, the first separation zone and the second patch region having increasing interlaminar fracture toughness from a center to an edge of the patch body, the first separation zone and the second patch region being substantially concentric rings surrounding the first patch region, the first patch region being centrally located relative to the first separation zone and the second patch region; and a layer of adhesive for bonding the patch body to the composite structure.