US5152326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binding thread arrangement in papermaking wire
Assignee: F OBERDORFER INDUSTRIEGEWEBE
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Filing: 1990-11-14
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Granted: 1992-10-06
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Expires: 2010-11-14
Abstract
Abstract A composite papermaking fabric including an upper fabric upon which a fiber suspension will be deposited for producing paper and a lower fabric or running surface being driven by the papermaking machine. The upper and lower fabrics are connected by binding threads. Use of separate, independent binding threads or binding threads which are only a part of the upper layer is replaced by the interweaving of fabric-born threads which are an integral part of the lower fabric and fabric-born threads which are an integral part of the upper fabric. Relative slippage between the upper and lower fabric layers is eliminated or decreased and the strength of the connection is increased. The marking of the paper is decreased. The fabric-born threads of one fabric layer cross the fabric-born threads of the other after at least one length of weave pattern.
Inventors
- 👤 Fritz Vohringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:03
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; D21F1/0045
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
176 words
A composite papermaking fabric comprising an upper fabric having an upper weave pattern and a lower fabric having a lower weave pattern superimposed on one another and connected by binding threads which are fabric-born threads forming an integral part of the upper and lower fabric weave patterns, wherein a first binding thread which is interwoven with cross direction extending threads of the upper fabric for at least one length of the upper fabric weave pattern is vertically stacked over a second binding thread which is interwoven with cross direction extending threads of the lower fabric for at least one length of the lower fabric weave pattern, and said first binding thread is crossed over said second binding thread, and said first binding thread is interwoven with the cross direction extending threads of the lower fabric for at least one length of the lower fabric weave pattern vertically stacked below said second binding thread which is interwoven with the cross direction threads of the upper fabric for at least one length of the upper fabric weave pattern.
Claim 2
Dependent Claim
176 words
A composite papermaking fabric comprising an upper fabric having an upper weave pattern and a lower fabric having a lower weave pattern superimposed on one another and connected by binding threads which are fabric-born threads forming an integral part of the upper and lower fabric weave patterns, wherein a first binding thread which is interwoven with cross direction extending threads of the upper fabric for at least one length of the upper fabric weave pattern is vertically stacked over a second binding thread which is interwoven with cross direction extending threads of the lower fabric for at least one length of the lower fabric weave pattern, and said first binding thread is crossed over said second binding thread, and said first binding thread is interwoven with the cross direction extending threads of the lower fabric for at least one length of the lower fabric weave pattern vertically stacked below said second binding thread which is interwoven with the cross direction threads of the upper fabric for at least one length of the upper fabric weave pattern.
Claim 3
Dependent Claim
19 words
The composite papermaking fabric according to claim 1 wherein said upper fabric and said lower fabric are one-layer fabrics.
Claim 4
Dependent Claim
35 words
The composite papermaking fabric according to claim 2, wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend parallel to a running direction of the composite papermaking fabric.
Claim 5
Dependent Claim
35 words
The composite papermaking fabric according to claim 2, wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend transverse to a running direction of the composite papermaking fabric.
Claim 6
Dependent Claim
30 words
The composite papermaking fabric according to claim 4, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 7
Dependent Claim
30 words
The composite papermaking fabric according to claim 2, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 8
Dependent Claim
30 words
The composite papermaking fabric according to claim 3, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 9
Dependent Claim
24 words
The composite papermaking fabric according to claim 1 wherein at least one of the upper and lower fabrics consists of more than one layer.
Claim 10
Dependent Claim
35 words
The composite papermaking fabric according to claim 8 wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend parallel to a running direction of the composite papermaking fabric.
Claim 11
Dependent Claim
34 words
The composite papermaking fabric according to claim 8, wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend transverse to a running direction of the papermaking fabric.
Claim 12
Dependent Claim
30 words
The composite papermaking fabric according to claim 10, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 13
Dependent Claim
30 words
The composite papermaking fabric according to claim 8, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 14
Dependent Claim
30 words
The composite papermaking fabric according to claim 9, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 15
Dependent Claim
35 words
The composite papermaking fabric according to claim 1 wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend parallel to a running direction of the composite papermaking fabric.
Claim 16
Dependent Claim
51 words
The composite papermaking fabric according to claim 14, wherein said first and second binding threads extending parallel to the running direction of the composite papermaking fabric constitute at least 25% of the total number of threads extending in the running direction of the papermaking wires in said upper and lower fabrics.
Claim 17
Dependent Claim
30 words
The composite papermaking fabric according to claim 14, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 18
Dependent Claim
31 words
A composite wire according to claim 15, characterized in that the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 19
Dependent Claim
35 words
The composite papermaking fabric according to claim 1 wherein said fabric-born first and second binding threads connecting said upper fabric to said lower fabric extend transverse to a running direction of the composite papermaking fabric.
Claim 20
Dependent Claim
30 words
The composite papermaking fabric according to claim 18, wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 21
Dependent Claim
55 words
The composite papermaking fabric according to claim 1 wherein said upper fabric is woven in linen binding and said lower fabric is formed as weft runner in a four-shed broken twill binding so that each fourth longitudinal thread of the lower fabrics and each fourth longitudinal thread of the upper fabric is a binding thread.
Claim 22
Dependent Claim
31 words
A composite wire according to claim 20, characterized in that the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 23
Dependent Claim
47 words
The composite papermaking fabric according to claim 20, wherein the binding threads which are separated by three interposed longitudinal threads of the upper fabric or lower fabric, respectively, are offset with respect to one another by four cross threads of the upper fabric or lower fabric, respectively.
Claim 24
Dependent Claim
31 words
A composite wire according to claim 22, characterized in that the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
Claim 25
Dependent Claim
30 words
The composite papermaking fabric according to claim 1 wherein the number of the binding threads constitute at least 10% of the total number of threads running in the same direction.
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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) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |