Composite article
OwnerZvi Horovitzinventor
Life of this patent
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Abstract
The invention relates to a composite structure including a plurality of fabric layers of interlaced flexible stretch-resistant strand material impregnated with a rigid resinous material and positioned in spaced generally parallel relationship to each other. A plurality of elongated partitions are disposed between adjacent layers and divide the space between adjacent layers into a plurality of elongated generally parallel channels. The partitions each comprise a plurality of stretch-resistant strand material interlaced with adjacent layers in a plane generally perpendicular to the adjacent fabric layers and are also impregnated with a rigid resinous material. In one embodiment, a rigid foamed material can be disposed in the channels for particular applications. A preferred method of making the rigid composite structure is also presented.
Claims13
A composite structure having a high strength to weight ratio and providing improved resistance to delamination, said composite structure comprising:
- a plurality of fabric layers of interlaced flexible stretch-resistant strand material;
- said fabric layers each being impregnated with a thermosetting rigid forming material;
- said fabric layers being positioned in spaced generally parallel relationship to each other;
- and
- a plurality of elongated partitions disposed between adjacent fabric layers and dividing the space between adjacent fabric layers into a plurality of elongated generally parallel channels;
- said partitions each comprising a plurality of stretch-resistant strand material interlaced with adjacent fabric layers in a plane generally perpendicular to said adjacent fabric layers, each of said partitions being impregnated with a thermosetting rigid forming material.
A rigid composite structure comprising:
- a first layer of interlaced flexible stretch-resistant strand material impregnated with a thermosetting rigid forming material;
- a second layer of interlaced stretch-resistant flexible strand material impregnated with a thermosetting rigid forming material and positioned adjacent said first layer and defining an intermediate space between said first layer and said second layer;
- and
- a plurality of elongated partitions disposed between said first and second layers and dividing said intermediate space into a plurality of elongated generally parallel channels;
- said partitions each comprising a plurality of stretch-resistant strand material interlaced with said first and second layers in a plane generally perpendicular to said first and second layers, said partitions being impregnated with a thermosetting rigid forming material.
Dependencies are inferred from the claim text.