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US4843739A
Expired / Lapsed
US
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Inner shoe material with adsorbent properties
Assignee: Individual
•
Filing: 1988-05-13
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Granted: 1989-07-04
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Expires: 2008-05-13
Abstract
Abstract The present invention involves an inner shoe material with adsorbent properties, whereby activated carbon particles are fixed as the adsorbent material by means of an adhesive substance in a punctiform manner to the side of the material facing away from the foot. The inner shoe material of the invention can be designed as inside lining, insoles, slipsoles, as inner sole of the shoe or as a covering material for the inner sole of the shoe. The inner shoe material of the invention can e.g. be used for combat boots with integrated C-protection or for safety boots with protection against aggressive chemicals. The inner shoe material has the advantage that it exhibits a high degree of scuff resistance on the one hand and the adsorbent activated carbon is freely accessible to the substances to be adsorbed, on the other.
Inventors
- 👤 Hubert von Blucher
- 👤 Hasso von Blucher
- 👤 Ernest de Ruiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:45
CPC Classifications
A; A43; A43B; A43B7/00; A43B17/00; A43B17/10; A43B17/102; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/2481
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
47 words
In an inner shoe material with activated carbon to provide adsorbent properties, the improvement wherein the activated carbon is present in the form of particles fixed by means of an adhesive substance in a punctiform manner to the side of the material facing away from the foot.
Claim 2
Dependent Claim
47 words
In an inner shoe material with activated carbon to provide adsorbent properties, the improvement wherein the activated carbon is present in the form of particles fixed by means of an adhesive substance in a punctiform manner to the side of the material facing away from the foot.
Claim 3
Dependent Claim
18 words
An inner shoe material according to claim 1, wherein the activated carbon particles are spherical or nearly spherical.
Claim 4
Dependent Claim
21 words
An inner shoe material according to claim 2, wherein the activated carbon particles have a diameter between 0.1 and 1 mm.
Claim 5
Dependent Claim
23 words
An inner shoe material according to claim 1, wherein the adhesive substance is present thereon only partially and not as a continuous surface.
Claim 6
Dependent Claim
15 words
An inner shoe material according to claim 1, wherein the adhesive substance is a latex.
Claim 7
Dependent Claim
16 words
An inner shoe material according to claim 1, wherein the adhesive substance is a thermoplastic adhesive.
Claim 8
Dependent Claim
18 words
An inner shoe material according to claim 1, in the form of an inner lining of the shoe.
Claim 9
Dependent Claim
15 words
An inner shoe material according to claim 1, in the form of a shoe insole.
Claim 10
Dependent Claim
17 words
An inner shoe material according to claim 1, in the form of a slipsole for a shoe.
Claim 11
Dependent Claim
26 words
An inner shoe material according to claim 1, in the form of an inner sole or as covering material for the inner sole of a shoe.
Claim 12
Dependent Claim
35 words
A combat boot with integrated C-protection including for at least one of the inside lining, the shoe insole, the slipsole and the inner sole of the shoe, an inner shoe material according to claim 1.
Claim 13
Dependent Claim
37 words
A safety boot with protection against aggresive chemicals including for at least one of the inside lining, the shoe insole, the slipsole and the inner sole of the shoe, an inner shoe material according to claim 1.
References Cited (Backward Citations)
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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) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |