Patent US5896758A successfully refreshed from Google Patents.
US5896758A
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US
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Three-dimensional knit spacer fabric for footwear and backpacks
Assignee: MMI IPCO LLC
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Filing: 1997-04-17
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Granted: 1999-04-27
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Expires: 2017-04-17
Abstract
Abstract An integrated three-dimensional knit spacer fabric is provided. The fabric includes a first fabric layer, a second fabric layer, and a resilient yarn interconnecting the two layers. The first fabric layer is made from fiber rendered hydrophilic, while the second fabric layer is abrasion resistant.
Inventors
- 👤 Moshe Rock
- 👤 Karl Lohmueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:44
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/02; D04B21/04; A; A43; A43B; A43B23/00; A43B23/02; A43B23/0205; D04B21/14; D04B21/18; D10; D10B; D10B2401/00; D10B2401/02; D10B2401/022; D10B2501/00; D10B2501/04; D10B2501/043
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
120 words
A three-dimensional knit spacer fabric comprising: a first fabric layer made from a first stitch yarn and a first backing yarn; a second fabric layer made from a second stitch yarn and a second backing yarn; and a resilient pile yarn interconnecting said first and second layers; wherein at least one of said first stitch yarn and said first backing yarn has been rendered hydrophilic, and at least one of said second stitch yarn and said second backing yarn has a tenacity of between about 3 and 12 grams per denier; wherein said first stitch yarn has a fineness of between about 300 and 600 denier and said pile yarn has a fineness of between about 40 and 150 denier.
Claim 2
Dependent Claim
120 words
A three-dimensional knit spacer fabric comprising: a first fabric layer made from a first stitch yarn and a first backing yarn; a second fabric layer made from a second stitch yarn and a second backing yarn; and a resilient pile yarn interconnecting said first and second layers; wherein at least one of said first stitch yarn and said first backing yarn has been rendered hydrophilic, and at least one of said second stitch yarn and said second backing yarn has a tenacity of between about 3 and 12 grams per denier; wherein said first stitch yarn has a fineness of between about 300 and 600 denier and said pile yarn has a fineness of between about 40 and 150 denier.
Claim 3
Dependent Claim
24 words
The fabric of claim 1, wherein at least one of the yarns of said first layer is chemically treated to render the yarn hydrophilic.
Claim 4
Dependent Claim
19 words
The fabric of claim 1, wherein said first fabric layer has a surface with yarn fibers that are raised.
Claim 5
Dependent Claim
17 words
The fabric of claim 1, wherein said fibers are raised by one of sanding, napping or brushing.
Claim 6
Dependent Claim
31 words
The fabric of claim 1, wherein said second stitch yarn has a fineness of between about 150 and 300 denier and a tenacity of between 3 and 12 grams per denier.
Claim 7
Dependent Claim
20 words
The fabric of claim 1, wherein the stitch yarn is coarser in the second layer than in the first layer.
Claim 8
Dependent Claim
11 words
The fabric of claim 1, wherein said pile yarn is monofilament.
Claim 9
Dependent Claim
19 words
The fabric of claim 1, wherein at least one of said backing yarns includes an elastomeric yarn incorporated therein.
Claim 10
Dependent Claim
21 words
The fabric of claim 1, wherein said pile yarn is sufficiently spaced in order to allow air flow through the fabric.
Claim 11
Dependent Claim
101 words
A three-dimensional knit spacer fabric comprising: a first fabric layer made from a first stitch yarn and a first backing yarn, said first layer having a raised surface; a second fabric layer made from a second stitch yarn and a second backing yarn, and a resilient pile yarn interconnecting said first and second layers; wherein at least one of said first stitch yarn and said first backing yarn has been rendered hydrophilic, and wherein said stitch yarn has a fineness of between about 300 and 600 denier and said pile yarn has a fineness of between about 40 and 150 denier.
Claim 12
Dependent Claim
101 words
A three-dimensional knit spacer fabric comprising: a first fabric layer made from a first stitch yarn and a first backing yarn, said first layer having a raised surface; a second fabric layer made from a second stitch yarn and a second backing yarn, and a resilient pile yarn interconnecting said first and second layers; wherein at least one of said first stitch yarn and said first backing yarn has been rendered hydrophilic, and wherein said stitch yarn has a fineness of between about 300 and 600 denier and said pile yarn has a fineness of between about 40 and 150 denier.
Claim 13
Dependent Claim
24 words
The fabric of claim 10, wherein said first stitch yarn has an individual fiber fineness in an amount between about 0.3 and 2.5 dpf.
Claim 14
Dependent Claim
20 words
The fabric of claim 10 wherein said first backing yarn has a fineness of between about 70 and 200 denier.
Claim 15
Dependent Claim
22 words
The fabric of claim 12, wherein said first backing yarn has an individual fiber fineness of between about 0.5 and 5 dpf.
Claim 16
Dependent Claim
23 words
The fabric of claim 10, wherein said pile yarn has an individual fiber fineness of between about 2 and 12 dpf when multifilament.
Claim 17
Dependent Claim
11 words
The fabric of claim 10, wherein said pile yarn is monofilament.
Claim 18
Dependent Claim
31 words
The fabric of claim 10, wherein said pile yarn is rendered hydrophilic in order to facilitate the transport of moisture from between said first fabric layer and said second fabric layer.
Claim 19
Dependent Claim
26 words
The fabric of claim 10, wherein both said second stitch yarn and said second backing yarn has a fineness of between about 150 and 300 denier.
Claim 20
Dependent Claim
29 words
The fabric of claim 17, wherein each of said second stitch yarn and said second backing yarn have an individual fiber fineness of between about 3.0 and 12 dpf.
References Cited (Backward Citations)
US4813161A
Cited
US4787219A
Cited
US4785558A
Cited
US4785558B1
Cited
US5312667A
Cited
US5413837A
Cited
US5344698A
Cited
US5514428A
Cited
US5651847A
Cited
US5385036A
Cited
EP0692563A1
Cited
US5547722A
Cited
WO1995016416A1
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-04-26 | 2002-10-26 | 2003-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-26 | 2006-10-26 | 2007-04-27 | $3760.00 | Window Closed / Lapsed |
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