US4623281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open-mesh fabric
Assignee: Bekaert NV SA
•
Filing: 1984-07-26
•
Granted: 1986-11-18
•
Expires: 2004-07-26
Abstract
Abstract Disclosed is a dimensionally stable, flexible and open-mesh woven fabric comprising a warp and a weft comprised of thread-like elements, wherein the warp elements are arranged in groups spaced apart from each other, wherein the distance between each two successive groups as well as the distance between each two successive wefts is between about 0.8 cm and 6 cm, and wherein the clamping force of a group of the warp elements on the weft elements is such that an axial movement of the weft elements occurs only in the case of an axial tensile loading of at least about 1% of the breaking strength of the weft elements.
Inventors
- 👤 Germain Verbauwhede
- 👤 Roger Vanassche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:10
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/122; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
170 words
A dimensionally stable, flexible and open-mesh woven fabric, comprising: a plurality of interwoven warp and weft elements comprised of thread-like elements, wherein the warp elements are arranged in groups comprising a plurality of warp elements extending parallel to one another with each warp element extending sinusoidally so that it alternately extends over and under the weft elements, said weft elements being axially movable with respect to said groups of warp elements, wherein said groups are spaced apart from each other and the distance between each two successive groups as well as the distance between each two successive wefts is between about 0.8 cm and 6 cm, and wherein the number of warp elements in said groups and said spacing are selected so that the clamping force of a group of the warp elements on the weft elements is such that an axial movement of the weft elements occurs only in the case of an axial tensile loading of at least about 1% of the breaking strength of the weft elements.
Claim 2
Dependent Claim
170 words
A dimensionally stable, flexible and open-mesh woven fabric, comprising: a plurality of interwoven warp and weft elements comprised of thread-like elements, wherein the warp elements are arranged in groups comprising a plurality of warp elements extending parallel to one another with each warp element extending sinusoidally so that it alternately extends over and under the weft elements, said weft elements being axially movable with respect to said groups of warp elements, wherein said groups are spaced apart from each other and the distance between each two successive groups as well as the distance between each two successive wefts is between about 0.8 cm and 6 cm, and wherein the number of warp elements in said groups and said spacing are selected so that the clamping force of a group of the warp elements on the weft elements is such that an axial movement of the weft elements occurs only in the case of an axial tensile loading of at least about 1% of the breaking strength of the weft elements.
Claim 3
Dependent Claim
57 words
A fabric according to claim 1, wherein the number of warp elements in said groups and said spacing are selected so that said clamping force is such that axial movement occurs only in the case of an axial tensile loading on the weft elements of at least about 2% of the breaking strength of the weft elements.
Claim 4
Dependent Claim
53 words
A fabric according to claim 2, wherein the number of warp elements in said groups and said spacing are selected so that the clamping force is such that said movement occurs only at an axial tensile loading having a value of at least about 10% of the breaking strength of the weft elements.
Claim 5
Dependent Claim
12 words
A fabric according to claim 1, wherein the elements comprise steel cords.
Claim 6
Dependent Claim
23 words
A fabric according to claim 1, wherein each group of warp elements comprises an even number of between one and fifteen identical elements.
Claim 7
Dependent Claim
18 words
A fabric according to claim 4, wherein the warp cords and weft cords are of the same type.
Claim 8
Dependent Claim
54 words
A fabric according to claim 1, wherein the following equation is satisfied in an unloaded fabric ##EQU2## wherein D is the thickness of the weft elements, d i is the diameter of the filament "i" in a warp cord, and n i is the number of filaments with diameter d i in this cord.
Claim 9
Dependent Claim
36 words
A woven fabric strip comprising a plurality of juxtaposed fabrics according to claim 1, wherein the longitudinal edges of the juxtaposed fabrics overlap each other and are mutually connected by means of a vulcanized rubber strip.
Claim 10
Dependent Claim
23 words
A fabric strip according to claim 8, further comprising at least one ballast weight attached to said woven fabric strip at spaced locations.
Claim 11
Dependent Claim
23 words
A fabric strip according to claim 8, further comprising at least one float member attached to said woven fabric strip at spaced locations.
Claim 12
Dependent Claim
27 words
A fabric strip according to claim 8, further comprising a plate and a vulcanized rubber layer connecting said plate to the lateral end of the fabric strip.
Claim 13
Dependent Claim
65 words
A fabric strip according to claim 11, further comprising a tube, a counter-plate and a plurality of clamping bolts attaching said plate and counter-plate together, wherein the end of the fabric strip is looped around said tube to form a region of double layer thickness of fabric, and said region is clamped between said plates with the interposition of at least one vulcanized rubber layer.
Claim 14
Dependent Claim
31 words
A fabric according to claim 4, wherein said steel cords have a diameter between about 0.10 mm and 2 mm and a tensile strength between about 400 and 3500N/mm 2 .
Claim 15
Dependent Claim
15 words
A fabric according to claim 1, wherein said groups comprise only said parallel-extending warp elements.
Claim 16
Dependent Claim
20 words
A fabric according to claim 14, wherein each group of warp elements comprises a plurality of pairs of warp elements.
Claim 17
Dependent Claim
20 words
A fabric according to claim 1, wherein each group of warp elements comprises a plurality of pairs of warp elements.
Claim 18
Dependent Claim
16 words
A fabric according to claim 16, wherein each group of warp elements comprises six warp elements.
Claim 19
Dependent Claim
61 words
A fabric according to claim 17, wherein said warp and weft elements comprise steel cords having a thickness of about 1.3 mm and a breaking load of about 1950N, wherein the distance between weft elements is about 18 mm, the width of each group of warp elements is about 12 mm and the distance between said groups is about 28 mm.
Claim 20
Dependent Claim
30 words
A fabric according to claim 1, wherein the warp elements have a tensile strength and a rigidity which do not differ by an order of magnitude from the weft elements.
References Cited (Backward Citations)
US2024806A
Cited
US2052808A
Cited
US2092183A
Cited
US2361163A
Cited
US2922442A
Cited
NL6803322A
Cited
FR2076016A1
Cited
US3928696A
Cited
US4239795A
Cited
US4002188A
Cited
DE3120661A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |