07-01-2021 дата публикации
Номер: US20210000218A1
Принадлежит:
An insole, which is insertable into a shoe and is removable from the shoe, includes at least a top layer, a middle layer, and a bottom layer. The middle layer has apertures or cavities, that define several discrete storage chambers within the insole. Each storage chamber stores a mixture of two or more particulate materials. The mixture includes one or more materials selected from Group A, which includes natural sand, synthetic sand, artificial sand, kinetic sand, silica, quartz. The mixture further includes one or more materials selected from Group B, which includes: powdered aluminum, powdered titanium, powdered zinc, powdered magnesia, powdered silver, powdered anti-bacterial agent, powdered metal, powdered talcum, grained cork, grained coal, grained wood. 1. An article comprising:a stand-alone insole, which is insertable into a shoe and is removable from said shoe; a bottom layer formed of Ethylene-Vinyl Acetate (EVA) polymer,', 'a middle layer formed of Ethylene-Vinyl Acetate (EVA) polymer,', 'and a top layer formed of a co-polymer;, 'the insole comprising at least'}wherein the middle layer comprises apertures therein;wherein said apertures in the middle layer, with corresponding portions of the top layer that are above said apertures, and with corresponding portions of the bottom layer that are beneath said apertures, define two or more internal discrete storage chambers within said insole; (i) one or more materials selected from Group A, wherein Group A consists of: natural sand, synthetic sand, artificial sand, kinetic sand, silica, quartz; and', '(ii) one or more materials selected from Group B, wherein Group B consists of: powdered aluminum, powdered titanium, powdered zinc, powdered magnesia, powdered silver, powdered anti-bacterial agent, powdered metal, powdered talcum, grained cork, grained coal, grained wood., 'wherein each of said internal discrete storage chambers stores therein a mixture of two or more particulate materials which comprise at least2 ...
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