US4453573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermakers forming fabric
Assignee: Huyck Corp
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Filing: 1982-03-17
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Granted: 1984-06-12
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Expires: 2002-03-17
Abstract
Abstract An improved papermakers' fabric comprising warp and filling yarns woven in a preselected conventional unbalanced weave pattern modified such that the warp yarn of that pattern alternate with warp woven in accordance with the reverse of that pattern.
Inventors
- 👤 Charles E. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:18
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; Y; Y10; Y10S; Y10S162/00; Y10S162/903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
An endless loop monoplanar papermakers' fabric comprising inter-woven warp and filling yarn systems, said warp yarn system comprising warp yarns woven in a preselected conventional unbalanced papermakers' weave pattern chosen from the class consisting of a 1/2 twill, a 2/1 twill, a 1/4 twill, a 4/1 twill, a 2/3 twill, a 3/2 twill, a 1/5 twill, a 5/1 twill, a 1/4 sateen and a 4/1 sateen, combined and alternated with warp yarns woven in accordance the reverse of said preselected pattern so that each fill yarn has an equal number of warp yarns passing thereover and thereunder, whereby the forces within said fabric are balanced reducing the tendency to edge curl and said fabric is provided with an improved support surface.
Claim 2
Dependent Claim
121 words
An endless loop monoplanar papermakers' fabric comprising inter-woven warp and filling yarn systems, said warp yarn system comprising warp yarns woven in a preselected conventional unbalanced papermakers' weave pattern chosen from the class consisting of a 1/2 twill, a 2/1 twill, a 1/4 twill, a 4/1 twill, a 2/3 twill, a 3/2 twill, a 1/5 twill, a 5/1 twill, a 1/4 sateen and a 4/1 sateen, combined and alternated with warp yarns woven in accordance the reverse of said preselected pattern so that each fill yarn has an equal number of warp yarns passing thereover and thereunder, whereby the forces within said fabric are balanced reducing the tendency to edge curl and said fabric is provided with an improved support surface.
Claim 3
Dependent Claim
42 words
The structure claimed in claim 1 wherein said papermakers' fabric comprises an endless belt for use in a section of a papermaking machine chosen from the class consisting of the forming section, the transfer section, the press section and the dryer section.
Claim 4
Dependent Claim
14 words
The structure claimed in claim 1 wherein said papermakers' fabric is a forming fabric.
References Cited (Backward Citations)
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FR1350537A
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GB1292860A
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GB1307599A
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GB1381651A
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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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |