Patent US5319867A successfully refreshed from Google Patents.
US5319867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive shoe insole
Assignee: Bank of America NA
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Filing: 1993-05-05
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Granted: 1994-06-14
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Expires: 2013-05-05
Abstract
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.
Inventors
- 👤 Fredric J. Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:10
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/28; A43B13/36; A43B17/00; A43B17/003; A43B3/00; A43B3/16; A43B3/163; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/36; A61; A61N; A61N1/00; A61N1/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
48 words
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.
Claim 2
Dependent Claim
48 words
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.
Claim 3
Dependent Claim
27 words
The shoe insole of claim 1 wherein said nonconductive adhesive means is applied to said fabric such that said noncorrosive, electrically conductive fibers contact said cushioned layer.
Claim 4
Dependent Claim
16 words
The shoe insole of claim 1 wherein said nonconductive adhesive means comprises a two-part polyol/diisocyanate compound.
Claim 5
Dependent Claim
31 words
The shoe insole of claim 1 wherein said cushioned layer is formed from at least one of the following materials: neoprene, butyl rubber, rubbers containing ethylene propylene diene monomers, polyvinyl chloride.
Claim 6
Dependent Claim
16 words
The shoe insole of claim 1 wherein said cushioned layer has carbon black particles distributed therein.
Claim 7
Dependent Claim
104 words
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.
Claim 8
Dependent Claim
104 words
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.
Claim 9
Dependent Claim
42 words
The shoe insole of claim 6 wherein said noncorrosive, electrically conductive fibers are made from at least one of the following materials: copper, aluminum, nickel, chromium, zinc, carbon, stainless steel, monel, duralumin, or other alloys of copper, aluminum, nickel, chromium, or zinc.
Claim 10
Dependent Claim
28 words
The shoe insole of claim 6 wherein said electrically nonconductive adhesive means is applied to said fabric such that said noncorrosive, electrically conductive fibers contact said cushioned layer.
Claim 11
Dependent Claim
37 words
The shoe insole of claim 6 wherein said electrically nonconductive adhesive means is thinly applied to said woven fabric to enable an electrical charge to be transferred from said noncorrosive, electrically conductive fibers to said cushioned layer.
Claim 12
Dependent Claim
28 words
The shoe insole of claim 6 wherein said noncellulosic fibers are selected from a group consisting of: acetate, acrylic, aramid, glass, modacrylic olefin, polyester, rayon, and spandex fibers.
Claim 13
Dependent Claim
106 words
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.
Claim 14
Dependent Claim
106 words
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.
Claim 15
Dependent Claim
42 words
The shoe insole of claim 11 wherein said noncorrosive electrically conductive fibers are made from at least one of the following materials: copper, aluminum, nickel, chromium, zinc, carbon, stainless steel, monel, duralumin, or other alloys of copper, aluminum, nickel, chromium, or zinc.
Claim 16
Dependent Claim
28 words
The shoe insole of claim 11 wherein said electrically nonconductive adhesive means is applied to said fabric such that said noncorrosive electrically conductive fibers contact said cushioned layer.
Claim 17
Dependent Claim
36 words
The shoe insole of claim 11 wherein said electrically nonconductive adhesive means is thinly applied to said fabric to enable an electrical charge to be transferred from said noncorrosive, electrically conductive fibers to said cushioned layer.
Claim 18
Dependent Claim
98 words
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.
Claim 19
Dependent Claim
98 words
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.
Claim 20
Dependent Claim
29 words
The shoe insole of claim 15 wherein said electrically nonconductive adhesive means comprises a two-part polyol/diisocyanate compound derived from polyols having a polyol molecular weight ranging from about 500-3000.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |