摘要:
A method and apparatus for manufacturing a composite stringer. A composite material and foam are laid up onto a tool in the form of a stringer. The foam has a plurality of structural members within the foam. The plurality of structural members has a number of orientations to resist a number of loads. The composite material, the foam in the form of the stringer, and the plurality of structural members are cured to form the composite stringer.
摘要:
A layered cushion (300) that may be fully disassembled for easy cleaning is disclosed herein. The sleep system is durable and fire retardant. The layered cushion (300) may include a foam layer (302), a layer of void cells (304), and a cover (308). The foam (302) permits fluids to move freely there through and contours to a user's body to maximize comfort and reduce interface pressure. The reticulated foam layer (302) resists compression set and thermosetting. The layer of void cells (304) also permits fluids to move freely there through and provide additional support to the user's body. The individual void cells of the void cell layer (304) are perforated to allow the transmission of fluids there through. The cover (308) couples the other layers together to form the layered cushion (300) and prevents the layers from deteriorating. The cover (308) is removable to permit cleaning each of the layers independently.
摘要:
A cushion (51) comprised of at least one chamber (52-55) comprised of a barrier material, said barrier material comprised of an elastomer, said elastomer being at least semi-permeable to at least a first reactant compound, a second reactant compound disposed within said at least one chamber, wherein said first reactant compound and said second reactant compound react to form a resultant compound, and wherein a rate of diffusion of said resultant compound through said barrier material is less than a rate of diffusion of said first reactant compound through said barrier material. An article of footwear (10) including a cushion, said cushion comprised of at least one chamber comprised of a barrier material, at least a first and a second solid or liquid reactant compounds disposed within said at least one chamber, wherein said first reactant compound and said second reactant compound react to form a resultant gaseous compound.
摘要:
A thermally insulative component is a thermal barrier panel attached to a rigid structural member with means for attaching the insulative component to an external structure. The connection between the structural member and the thermal barrier panel is mechanically compliant to minimize intercomponent stress build up during operation. The thermal barrier panel is a fiber wrapped ceramic oxide foam insulating structure.
摘要:
A structure includes a skin (307) and a foam member (311). The foam member has a molded contour, the mold contour being configured to provide tooled surface for the skin. When the skin is a composite skin, the foam member provides support for the skin so that the skin can be cured under heat and pressure. A method (605) of making the foam member for a foam stiffened structure includes creating a mold having an interior cavity which resembles a desired shape the foam member. A subsequent step involves introducing a foam mixture into the mold. Next, the foam mixture is allowed to polymerize so as to expand and distribute within the cavity of the mold. The method further includes selectively controlling a density of the foam member in the mold. The foam member is at least partially cured. The foam member is assembled with a skin to produce the foam stiffened structure.
摘要:
A porous composite substrate (12) that includes reinforcement material disposed within a resin matrix (12). The resin matrix (12) includes a first matrix region (14) with a first density, and a second matrix region with a second density that is different than the first density. The first matrix region includes a plurality of pores (20) that are formed by pore forming material.