US4223458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated shoe insole
Assignee: Kureha Corp
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Filing: 1979-03-30
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Granted: 1980-09-23
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Expires: 1999-03-30
Abstract
Abstract A shoe insole comprising (A) a coarse mesh-like woven cloth backing made of monofilaments of a vinylidene chloride-type polymer, (B) a honeycomb-woven cloth intermediate layer made of monofilaments of the vinylidene chloride-type polymer, (S) a sheet prepared by coating a latex containing activated carbon powder, copper powder and magnetic powder on a non-woven cloth made of staple fibers of the vinylidene chloride-type polymer and/or a vinyl chloride-type polymer and heat-treating the coated cloth, and (D) a fine-woven cloth surface layer made of monofilaments of the vinylidene chloride-type polymer, the cloths (A), (B), (S) and (D) being laminated in order and the peripheral edge of the laminate being welded, and a process for producing the same.
Inventors
- 👤 Sueo Kihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:14
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/024; A; A43; A43B; A43B1/00; A43B1/0009; A43B1/0045; A43B1/0054; A43B17/00; A43B17/10; A43B17/102; B32B25/00; B32B25/04; B32B25/08; B32B25/18; B32B27/00; B32B27/30; B32B27/304; B32B3/00; B32B3/10; B32B3/12; B32B2262/00; B32B2262/02; B32B2262/0223; B32B2262/0238; B32B2305/00; B32B2305/38; B32B2319/00; B32B2327/00; B32B2437/00; B32B2437/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A shoe insole comprising (A) a coarse mesh-like woven cloth backing made of monofilaments of a vinylidene chloride-type polymer, (B) a honeycomb-woven cloth intermediate layer made of monofilaments of said vinylidene chloride-type polymer, (S) a sheet prepared by coating a latex containing activated carbon powder, copper powder and magnetic powder on a non-woven cloth made of staple fibers of said vinylidene chloride-type polymer and/or a vinyl chloride-type polymer and heat-treating the coated cloth, and (D) a fine-woven cloth surface layer made of monofilaments of said vinylidene chloride-type polymer, said cloths (A), (B), (S) and (D) being laminated in order and the peripheral edge of the laminate being welded.
Claim 2
Dependent Claim
108 words
A shoe insole comprising (A) a coarse mesh-like woven cloth backing made of monofilaments of a vinylidene chloride-type polymer, (B) a honeycomb-woven cloth intermediate layer made of monofilaments of said vinylidene chloride-type polymer, (S) a sheet prepared by coating a latex containing activated carbon powder, copper powder and magnetic powder on a non-woven cloth made of staple fibers of said vinylidene chloride-type polymer and/or a vinyl chloride-type polymer and heat-treating the coated cloth, and (D) a fine-woven cloth surface layer made of monofilaments of said vinylidene chloride-type polymer, said cloths (A), (B), (S) and (D) being laminated in order and the peripheral edge of the laminate being welded.
Claim 3
Dependent Claim
66 words
The shoe insole of claim 1, wherein said activated carbon powder is present in an amount of about 10 to 50 parts by weight, said copper powder is present in an amount of about 10 to 50 parts by weight and said magnetic powder is present in an amount of about 100 to 400 parts by weight, respectively, per 100 parts by weight of the latex.
Claim 4
Dependent Claim
76 words
The shoe insole of claim 1, wherein said latex contains in addition of said copper powder, said activated carbon and said magnetic powder, 100 parts by weight of nitrobutyl rubber, 0.5 to 1.5 parts by weight of sodium laurylsulfate, 0.5 to 1.5 parts by weight of sulfur, 0.5 to 1.5 parts by weight of zinc oxide, 0.5 to 1.5 parts by weight of a vulcanization accelerator, and 1 to 3 parts by weight of an antioxidant.
Claim 5
Dependent Claim
19 words
The shoe insole of claim 1, wherein said laminate is dot welded at the center line of the insole.
Claim 6
Dependent Claim
22 words
The shoe insole of claim 4, wherein said insole is dot welded between the periphery and the center line of the insole.
References Cited (Backward Citations)
US997498A
Cited
FR982290A
Cited
GB741875A
Cited
US3852897A
Cited
US4015347A
Cited
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Cited
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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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |