US3596858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fourdrinier seam
Assignee: Appleton Wire Works Corp
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Filing: 1969-05-02
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Granted: 1971-08-03
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Expires: 1989-05-02
Abstract
Abstract A seam for a Fourdrinier belt having interwoven warps and shutes in which the warps that terminate along the seam have their ends arranged on the wear side of the belt and positioned under one or more shutes extending across the seam.
Inventors
- 👤 Donald R Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:19
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/09; B01D29/093; B21; B21F; B21F33/00; B21F33/007; F; F16; F16G; F16G1/00; F16G1/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
In a seam for joining together a length of fabric into a Fourdrinier belt having a papermaking exterior surface and a wear interior surface, which fabric includes warps interwoven with shutes, the improvement: characterized in that the ends of warps terminating along the seam are arranged along the wear surface of the belt, further characterized in that each end of a warp terminating along the seam is arranged under a shute extending across the seam, and still further characterized in that the ends of a warp terminating along the seam are arranged in one of two conditions, the first condition having the ends of the warp longitudinally aligned with and spaced from each other and the second condition having the ends of the warp longitudinally aligned with and butted against each other.
Claim 2
Dependent Claim
132 words
In a seam for joining together a length of fabric into a Fourdrinier belt having a papermaking exterior surface and a wear interior surface, which fabric includes warps interwoven with shutes, the improvement: characterized in that the ends of warps terminating along the seam are arranged along the wear surface of the belt, further characterized in that each end of a warp terminating along the seam is arranged under a shute extending across the seam, and still further characterized in that the ends of a warp terminating along the seam are arranged in one of two conditions, the first condition having the ends of the warp longitudinally aligned with and spaced from each other and the second condition having the ends of the warp longitudinally aligned with and butted against each other.
Claim 3
Dependent Claim
100 words
A seam according to claim 1 for joining together a length of Fourdrinier fabric having warps interwoven with shutes in a pattern of the type in which each warp has a first knuckle passing under a plurality of shutes and an adjacent knuckle passing over at least the next shute, which pattern is repeated along the warp, characterized in that one warp end terminating along the seam is arranged under one of shutes under which said first knuckle of the warp passes, and the other end is arranged under another shute under which said first knuckle of the warp passes.
Claim 4
Dependent Claim
84 words
A seam according to clam 1 for joining together a length of Fourdrinier fabric having warps interwoven with shutes in a pattern of the type in which each warp has a first knuckle passing under a plurality of shutes and a adjacent knuckle passing over at least the next shute, which pattern is repeated along the warp, characterized in that each end of a warp terminating along the seam is arranged under one of shutes under which said first knuckle of the warp passes.
Claim 5
Dependent Claim
84 words
A seam according to clam 1 for joining together a length of Fourdrinier fabric having warps interwoven with shutes in a pattern of the type in which each warp has a first knuckle passing under a plurality of shutes and a adjacent knuckle passing over at least the next shute, which pattern is repeated along the warp, characterized in that each end of a warp terminating along the seam is arranged under one of shutes under which said first knuckle of the warp passes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |