Electrically conductive shoe insole
AssigneeSpenco Medical Corporation
InventorFredric J. Weber
Life of this patent
Estimating the term…
Abstract
An electrically conductive shoe insole is disclosed for cushioning a user's foot and for transferring electrical charges from the wearer's foot to a conductive shoe. The shoe insole includes a cushioned layer, which contains an electrically conductive material, and a fabric, which is bonded to the top surface of the cushioned layer by a nonconductive adhesive. The fabric contains a noncorrosive electrically conductive fiber interwoven therein. The adhesive is applied such that the electrically conductive fibers in the fabric contact the cushioned layer. This allows transfer of electrical charges from the fabric to the cushioned layer.
Claims16
An electrically conductive shoe insole comprising:
- a) a foamed cushioned layer containing an electrically conductive material;
- b) a fabric positioned above said cushioned layer, said fabric containing noncellulose fibers and noncorrosive electrically conductive fibers;
- and
- c) electrically nonconductive adhesive means for bonding said fabric to said cushioned layer.
An electrically conductive shoe insole comprising:
- a) a cushioned layer containing an electrically conductive material;
- b) a woven fabric positioned above said cushioned layer, said fabric having from about 90 to 99 percent by weight of noncellulose fibers and from about 1 to 10 percent by weight of noncorrosive electrically conductive fibers, said noncorrosive, electrically conductive fibers being interwoven into said fabric, said noncellulose fibers being treated with a hydrophilic surfactant to decrease the rate at which absorbed moisture can be dispersed over the volume of said noncellulosic fibers;
- and
- c) electrically nonconductive adhesive means for bonding said woven fabric to said cushioned layer.
An electrically conductive shoe insole for use in a shoe comprising:
- a) a foamed cushioned layer containing an electrically conductive material which can absorb shock, distribute pressure, and transfer electrical charges to said shoe;
- b) a woven fabric positioned cushioned layer, said fabric having from about 90-99% by weight of continuous noncellulose fibers and from about 1-10% by weight of continuous noncorrosive electrically conductive fibers, said fabric capable of transporting moisture away from a user's foot;
- and
- c) electrically nonconductive adhesive means for bonding said woven fabric to said cushioned layer, said adhesive permitting the transfer of electrical charges from said user's foot to said shoe.
An electrically conductive shoe insole comprising:
- a) a foamed cushioned layer containing an electrically conductive material, said material made from butyl rubber and ethylene propylene diene monomers;
- b) a woven fabric positioned cushioned layer, said fabric having from about 90-99% by weight of polyester fibers and from about 1-10% by weight of nonoxidating metallic fibers interwoven therein, said polyester fibers being treated with a hydrophobic surfactant to increase the rate at which absorbed moisture can be dispersed over the volume of said noncellulose fibers;
- and
- c) electrically nonconductive adhesive means for bonding said fabric to said cushioned layer.
Dependencies are inferred from the claim text.