Patent US3900659A successfully refreshed from Google Patents.
US3900659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven cloth seam
Assignee: Jwi Ltd
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Filing: 1973-09-18
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Granted: 1975-08-19
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Expires: 1993-09-18
Abstract
Abstract This invention relates to a seam for joining together the ends of sheets of woven cloth, and especially cloth woven of synthetic materials. Such a woven cloth comprises warp strands in the longitudinal direction thereof and interwoven weft strands. To form the seam of the invention, the weft strands are either removed from or not woven into areas adjacent each end of the cloth, the unwefted areas being separated from the ends of the cloth by first and second areas in which the weft strands remain. The unwefted areas are separated from each other by a third wefted area which comprises the main body of the cloth. Thus, the first and second areas are joined respectively to different ends of the third area by the unwefted continuation of the warp strands in the unwefted areas. The unwefted warp strands are crimped, some in an upward and some in a downward direction, and the crimped warp strands are intermeshed. The crimps are adjacent one another along the width of the cloth so that the crimps cooperate to form a cylindrical-like opening along the width of the cloth, and a pintle pin, or a hinge, is inserted into the opening to thereby fasten one end of the cloth to the other end. The seam is especially useful to join the two ends of woven cloth fabrics used in paper making machines such as cylinder covers and Fourdrinier wires.
Inventors
- 👤 Donald George Macbean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:55
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0054; D03; D03D; D03D3/00; Y; Y10; Y10S; Y10S162/00; Y10S162/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249923
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
388 words
A SEAM FOR JOINING TOGETHER TWO ENDS OF A WOVEN CLOTH HAVING A LENGTH AND A WIDTH. SAID CLOTH COMPRISING: A PLURALITY OF WARP STANDS EXTENDING IN THE LENGTHWISE DERECTION OF SAID CLOTH AND DISPOSED IN SIDE-BY-SIDE RELATIONSHIP ALONG THE WIDTH OF SAID CLOTH: A FIRST AREA OF WRAP ADJACENT ONE END OF SAID CLOTH AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, A SECOND AREA OF WARP ADJACENT THE OTHER END OF THE CLOTH AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, A THIRD AREA OF WARP INTERPOSED BETWEEN SAID FIRST AND SECOND AREAS AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, SAID THIRD AREA HAVING A FIRST END ADJACENT SAID FIRST AREA AND A SECOND END ADJACENT SAID SECOND ARE, A SELECTED FIRST SET OF WARP STANDS OF SAID FIRST AREA BEING JOINED WITH CORRESPONDING WARP STANDS OF SAID THIRD AREA BY A FIRST WEFTLESS CONTINUATION OF SAID WARP STANDS, A SELECTED SECOND SET OF WARP STANDS OF SAID SECOND AREA BEING JOINED WITH CORRESPONDING WARP STANDS OF SAID THIRD AREA BY A SECOND WEFTLESS CONTINUATION OF SAID WARP STANDS, EACH OF SAID WARP STANDS IN SAID FIRST AND SECOND WEFTLESS CONTINUATIONS OF SAID WARP STANDS COMPRISING A CRIMP, SOME OF SAID CRIMPS EXTENDING IN AN UPWARD DIRECTION RELATIVE TO SAID CLOTH, AND OTHERS OF SAID CRIMPS EXTENDING IN A DOWNWARD DIRECTION RELATIVE TO SAID CLOTH, SAID SEAM COMPRISING, AN INTERMESH OF SAID CRIMPS IN SAID FIRST AND SAID SECOND WEFTLESS CONTINUATIONS, SAID CRIMPS BEING ADHACENT ONE ANOTHER ALONG THE WIDTH OF SAID CLOTH WHEN SAID WRAP STANDS OF SAID FIRST WEFTLESS CONTINUATION OF SAID WARP STRANDS AND SAID SECOND WEFTLESS CONTINUATION OF SAID WARP STANDS ARE INTERMESHED, WHEREBY THE CRIMPS COOPERATE TO FORM A CYLINDERICAL-LIKE OPENING ALONG THE WIDTH OF THE CLOTH, AND COUPLING MEANS BEING INSERTED IN SAID CYLINDERICAL-LIKE OPENING TO THEREBY FASTEN ONE END OF SAID CLOTH TO THE OTHER END THEREOF, CHARACTERIZED IN THE SAID FIRST AREA OF WARP LIES ON SAID SECOND WEFTLESS CONTINUATION BETWEEN SAID COUPLING MEANS AND THE SECOND END OF THE THIRD AREA ON ONE SIDE OF THE INTERMESH, AND IN THAT SAID SECOND AREA OF WARP LIES ON SAID FIRST WEFTLESS CONTINUATION BETWEEN SAID COUPLING MEANS AND THE FIRST END OF SAID THIRD AREA ON THE OTHER SIDE OF THE INTERMESH.
Claim 2
Dependent Claim
388 words
A SEAM FOR JOINING TOGETHER TWO ENDS OF A WOVEN CLOTH HAVING A LENGTH AND A WIDTH. SAID CLOTH COMPRISING: A PLURALITY OF WARP STANDS EXTENDING IN THE LENGTHWISE DERECTION OF SAID CLOTH AND DISPOSED IN SIDE-BY-SIDE RELATIONSHIP ALONG THE WIDTH OF SAID CLOTH: A FIRST AREA OF WRAP ADJACENT ONE END OF SAID CLOTH AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, A SECOND AREA OF WARP ADJACENT THE OTHER END OF THE CLOTH AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, A THIRD AREA OF WARP INTERPOSED BETWEEN SAID FIRST AND SECOND AREAS AND FORMED BY SAID WARP STANDS WITH INTERWOVEN WEFT STANDS, SAID THIRD AREA HAVING A FIRST END ADJACENT SAID FIRST AREA AND A SECOND END ADJACENT SAID SECOND ARE, A SELECTED FIRST SET OF WARP STANDS OF SAID FIRST AREA BEING JOINED WITH CORRESPONDING WARP STANDS OF SAID THIRD AREA BY A FIRST WEFTLESS CONTINUATION OF SAID WARP STANDS, A SELECTED SECOND SET OF WARP STANDS OF SAID SECOND AREA BEING JOINED WITH CORRESPONDING WARP STANDS OF SAID THIRD AREA BY A SECOND WEFTLESS CONTINUATION OF SAID WARP STANDS, EACH OF SAID WARP STANDS IN SAID FIRST AND SECOND WEFTLESS CONTINUATIONS OF SAID WARP STANDS COMPRISING A CRIMP, SOME OF SAID CRIMPS EXTENDING IN AN UPWARD DIRECTION RELATIVE TO SAID CLOTH, AND OTHERS OF SAID CRIMPS EXTENDING IN A DOWNWARD DIRECTION RELATIVE TO SAID CLOTH, SAID SEAM COMPRISING, AN INTERMESH OF SAID CRIMPS IN SAID FIRST AND SAID SECOND WEFTLESS CONTINUATIONS, SAID CRIMPS BEING ADHACENT ONE ANOTHER ALONG THE WIDTH OF SAID CLOTH WHEN SAID WRAP STANDS OF SAID FIRST WEFTLESS CONTINUATION OF SAID WARP STRANDS AND SAID SECOND WEFTLESS CONTINUATION OF SAID WARP STANDS ARE INTERMESHED, WHEREBY THE CRIMPS COOPERATE TO FORM A CYLINDERICAL-LIKE OPENING ALONG THE WIDTH OF THE CLOTH, AND COUPLING MEANS BEING INSERTED IN SAID CYLINDERICAL-LIKE OPENING TO THEREBY FASTEN ONE END OF SAID CLOTH TO THE OTHER END THEREOF, CHARACTERIZED IN THE SAID FIRST AREA OF WARP LIES ON SAID SECOND WEFTLESS CONTINUATION BETWEEN SAID COUPLING MEANS AND THE SECOND END OF THE THIRD AREA ON ONE SIDE OF THE INTERMESH, AND IN THAT SAID SECOND AREA OF WARP LIES ON SAID FIRST WEFTLESS CONTINUATION BETWEEN SAID COUPLING MEANS AND THE FIRST END OF SAID THIRD AREA ON THE OTHER SIDE OF THE INTERMESH.
Claim 3
Dependent Claim
123 words
A seam as defined in claim 1 wherein a first number of warp strands extend, in the lengthwise direction of said cloth, in said first warp area; and wherein a second number of warp strands extend, in the lengthwise direction of said cloth, in said second warp area; and wherein a third number of warp strands extend, in the lengthwise direction of said cloth, in said third warp area; said first, second and third number of warp strands being substantially equal; said first and second weftless continuations of said warp strands comprising, respectively, fourth and fifth numbers of warp strands; said fourth and fifth numbers of warp strands being substantially equal and less than said first, second and third numbers of warp strands.
Claim 4
Dependent Claim
188 words
A seam as defined in claim 1 wherein the selected first set of warp strands in said first area of warp comprises every second warp strand in said first area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second warp strand in said third area of warp; whereby said first weftless continuation joins only every second warp strand of said first area of warp with every second warp strand of said third area of warp; the remainder of the warf strands of said first weftless continuation being culled out; and wherein the selected second set of warp strands in said second area of warp comprises every second warp strand in said second area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second warp strand in said third area of warp; whereby said second weftless continuation joins only every second warp strand of said second area of warp with every second warp strand of said third area of warp; the remainder of the warp strands of said second weftless continuation being culled out.
Claim 5
Dependent Claim
204 words
A seam as defined in claim 1 wherein the selected first set of warp strands in said first area of warp comprises every second and third warp strand in said first area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second and third warp strand in said third area of warp; whereby said first weftless continuation joins only every second and third warp strand of said first area of warp with every second and third warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out; and wherein the selected second set of warp strands in said second area of warp comprises every second and third warp strand in said second area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second and third warp strand in said third area of warp; whereby said second weftless continuation joins only every second and third warp strand of said second area of warp with every second and third warp strand of said third area of warp; the remainder of the warp strands of said second weftless continuation being culled out.
Claim 6
Dependent Claim
212 words
A seam as defined in claim 1 wherein the selected first set of warp strands in said first area of warp comprises every second, third and fourth warp strand in said first area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second, third and fourth warp strand in said third area of warp; whereby said first weftless continuation joins only every second, third anD fourth warp strand of said first area of warp with every second, third and fourth warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out; and wherein the selected second set of warp strands in said second area of warp comprises every second, third and fourth warp strand in said second area of warp; and wherein the corresponding warp strands in said third area of warp comprises every second, third and fourth warp strand in said third area of warp; whereby said second weftless continuation joins only every second, third and fourth warp strand of said second area of warp with every second, third and fourth warp strand of said third area of warp; the remainder of the warp strands of said second weftless continuation being culled out.
Claim 7
Dependent Claim
188 words
A seam as defined in claim 1 wherein the selected first set of warp strands in said first area of warp comprises every third warp strand in said first area of warp; and wherein the corresponding warp strands in said third area of warp comprises every third warp strand in said third area of warp; whereby said first weftless continuation joins only every third warp strand of said first area of warp with every third warp strand of said third area of warp; the remainder of the warp strands of said first weftless continuation being culled out; and wherein the selected second set of warp strands in said second area of warp comprises every third warp strand in said second area of warp; and wherein the corresponding warp strands in said third area of warp comprises every third warp strand in said third area of warp; whereby said second weftless continuation joins only every third warp strand of said second area of warp with every third warp strand of said third area of warp; the remainder of the warp strands of said second weftless continuation being culled out.
Claim 8
Dependent Claim
55 words
A seam as defined in claim 1 wherein each length of warp strand enveloping an interwoven weft strand comprises a unit of length; and wherein each of said first and second weftless continuations of said warp strands comprises a greater number of units of length than its adjacent first and second areas of warp respectively.
Claim 9
Dependent Claim
35 words
A seam as defined in claim 7 wherein said first and second weftless continuation of warp strands is at least two units of length greater than its adjacent first and second areas of warp respectively.
Claim 10
Dependent Claim
59 words
A seam as defined in claim 1 wherein the warp strands enveloping the last weft strand adjacent one end of said cloth are bonded to said last weft strand; and wherein the warp strands, enveloping the last weft strand adjacent another end of the cloth, are bonded to said last weft strand adjacent said another end of the cloth.
Claim 11
Dependent Claim
30 words
A seam as defined in claim 9 wherein said warp strands enveloping the last weft strand adjacent the one and the another ends of the cloth are coated with adhesive.
Claim 12
Dependent Claim
34 words
A seam as defined in claim 10 wherein the warp strands enveloping the last weft strands adjacent the one and the another ends of the cloth are heat sealed to their respective weft strands.
Claim 13
Dependent Claim
36 words
A seam as defined in claim 10 wherein the warp strands enveloping the last weft strands adjacent the one and the another ends of the cloth are bonded to their respective weft strands with said adhesive.
Claim 14
Dependent Claim
143 words
A seam as defined in claim 1 wherein a first end set of unwefted warp strands projects beyond said first area in a direction opposite to said first weftless continuation of said warp strands; and wherein a second end set of unwefted warp strands projects beyond said second area in a direction opposite to said second weftless continuation of said warp strands; wherein after being coupled by a coupling means said projecting set of weftless warp strands of said first end are interwoven with weft strands in said third area adjacent that end of said third area closest to said second weftless continuation of said warp strands and said projecting unwefteD warp strands of said second end are interwoven with weft strands in said third area adjacent that end of said third area closest to said first weftless continuation of said warp strands.
Claim 15
Dependent Claim
132 words
A seam as defined in claim 1 wherein each of said warp strands in said first and second weftless continuations of said warp strands comprises a crimp; said crimps of one of the weftless continuation extending in an upward direction relative to said cloth, and said crimps of the other of the weftless continuations extending in a downward direction relative to the cloth; said crimps being adjacent one another along the width of said cloth when said first weftless continuations of said warp strands and said second weftless continuations of said warp strands are intermeshed; whereby the crimps cooperate with to form cylindrical-like openings along the width of the cloth; said coupling means being inserted in said cylindrical-like openings to thereby fasten one end of said cloth to the other end thereof.
Claim 16
Dependent Claim
15 words
A seam as defined in claim 1 wherein said coupling means comprises a pintle pin.
Claim 17
Dependent Claim
137 words
A seam as defined in claim 1 wherein each said warp strands in said first and second weftless continuations of said warp strands comprises at least a first crimp and a second crimp; said first crimps of said first weftless continuation of said warp strands cooperating with said second crimps of said second weftless continuation of said warp strands to form a first cylindrical-like opening along the width of said cloth; said second crimps of said first weftless continuation of said warp strands cooperating with said first crimps of said weftless continuation of said warp strands to form a second cylindrical-like opening along the width of said cloth; and first and second coupling means inserted in each said first and second cylindrical-like openings respectively to thereby fasten one end of said cloth to the other end thereof.
Claim 18
Dependent Claim
21 words
A seam as defined in claim 16 wherein said first and second coupling means comprises first and second pintle pins respectively.
References Cited (Backward Citations)
US3283388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |