Patent ID: 6231946
Filing Date: 2001-05-15
Classification: A43B,B29C,F16F,Y10T

Abstract:
A structural reinforcement comprising:a double corrugated structural reinforcement in the form of an open gridwork comprising a pair of gridwork elements, each gridwork element being defined by strands extending in a first direction and strands extending in a second direction transverse to said first direction and being impregnated substantially throughout with a thermosettable B-stage or fully cured thermoset resin;said strands in said first direction being corrugated to define high and low portions, and said strands in said second direction being substantially straight;said pair of gridwork elements being fixedly connected in opposed face-to-face relationship;said first and second strands of said gridwork elements being oriented in like directions, respectively, and said high and low portions facing each other in opposing relation so as to define a cavity between each of said opposing high portions of said corrugated strands;elongation of said reinforcement being allowed in said first direction by said first corrugated strands and being substantially prevented in said second direction by said second straight strands; andsaid gridwork elements each comprising at least one continuous filament selected from the group consisting of glass, carbon, and aramid.