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Shoe sole with a loose fill comfort support systemRelated Patent Categories: Boots, Shoes, And Leggings, Soles, CushionShoe sole with a loose fill comfort support system description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060130363, Shoe sole with a loose fill comfort support system. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to the comfort and support in the sole of a shoe. In particular, the present invention relates to a shoe with a sole that is filled with a loose fill material such as crumb rubber for shock absorption, cushionability, energy return, added comfort and stability. [0003] 2. Discussion of the Related Art [0004] Dress, casual and athletic shoes generally include an upper leather portion and an inner lining that cover the top of the foot, a counter placed between the upper leather portion and the lining to provide rigidity at the heel, an insole upon which the foot rests, an outsole which contacts the ground surface and possibly a filler portion that is positioned between the insole and outsole. The midsole of a shoe is a piece of material such as rubber or leather that is often stitched or glued to the inside fabric lining, upper leather portion, and the counter to hold the construction together. [0005] A filler is a material that fills the space formed between the midsole and the outsole when the midsole is glued to the inside lining, upper leather portion and the counter component. This filler is normally glued in position and is manufactured from the same material as the midsole. [0006] The outsole is the bottom portion of the shoe that contacts the ground or floor surface which is usually manufactured from leather, rubber or any of several suitable synthetic materials. The outsole is typically glued to the filler material. [0007] The manufacture of shoes using conventional construction methods is a complicated and expensive process. In this regard, improvements are sought to simplify the construction process that corresponding decrease the cost of manufacturing the shoe, while maintaining all of the functionality of the shoe. [0008] In the prior art, most improvements in shoe design have focused on the midsole. The midsole is a shoe's main cushioning system. An argument could be made that no part of the shoe has benefited from science more and affects performance more than the midsole. In early athletic shoes, especially in running shoes, midsoles really did not exist. Early basketball shoes had some rubber cushioning inside them, but nothing advanced and innovative as the modern midsole found in every type of shoe from walking shoes to basketball shoes. These innovations range from improved foam midsoles to very complicated air and fluid systems. While these increasingly complicated midsoles may improve performance, the cost to manufacture these shoes has increased exponentially. [0009] Thus, there is a need in the art for a shoe having a simplified midsole construction with softer density while providing adequate cushioning and stability for every type of shoe or boot. [0010] What is needed, therefore, is a shoe with fill material that provides the cushioning and support of a traditional midsole. SUMMARY OF THE INVENTION [0011] It is an object of the present invention to provide a shoe including an outsole which contacts the ground, an insole upon which a foot rests, and a midsole located between the outsole and the insole, wherein the midsole absorbs impact by providing a loose fill material throughout the midsole of the shoe to cushion any force exerted upon the shoe. [0012] It is yet another object of the present invention to provide a shoe including an outsole which contacts the ground, an insole upon which a foot rests, and a midsole located between the outsole and the insole, wherein the midsole absorbs impact by providing a loose fill material throughout the midsole of the shoe to cushion any force exerted upon the shoe, wherein the loose fill material is bound together with an adhesive. [0013] Still yet another object of the present invention is to provide a shoe including an outsole which contacts the ground, an insole upon which a foot rests, and a midsole located between the outsole and the insole, wherein the midsole absorbs impact by providing a loose fill material throughout the midsole of the shoe to cushion any force exerted upon the shoe, wherein the midsole is divided into at least two compartments and each of the compartments is filled with the loose fill material. BRIEF DESCRIPTION OF THE DRAWINGS [0014] A clear understanding of the various advantages and features of the present invention, as well as the construction and operation of conventional components and mechanisms associated with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the following drawings which accompany and form a part of this patent specification. [0015] FIG. 1 is a perspective view of a shoe with loose fill support according to the preferred embodiment of the present invention; [0016] FIG. 2 is a cross-sectional view of the shoe with loose fill support along line 2-2 of FIG. 1 according to the preferred embodiment of the present invention; [0017] FIG. 3 is a cross-sectional view of the heel of a shoe with loose fill support along line 3-3 of FIG. 1 according to the preferred embodiment of the present invention; [0018] FIG. 4 is a cross-sectional view of the midsole of a shoe with compartments to contain the fill in the shoe according to an alternative embodiment of the present invention; [0019] FIG. 5 is a cross-sectional view along line 5-5 of FIG. 4 according to the preferred embodiment of the present invention; and [0020] FIG. 6 is a cross-sectional view along line 6-6 of FIG. 4 according to the preferred embodiment of the present invention. 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