US4094402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inlay fabric
Assignee: Conrad Scholtz AG
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Filing: 1976-04-27
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Granted: 1978-06-13
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Expires: 1996-04-27
Abstract
Abstract An inlay fabric for transversely stiff conveyor belts having warp threads to be arranged in longitudinal direction of the conveyor belt and relatively stiff weft threads extending transversely thereof. The weft threads have a diameter in the range from 0.2 to 1.0 mm, the density of the weft threads ranges from 60 to 120 threads per 100 mm of fabric length, and the warp threads have a crimp between 6.5 and 22.5%, whereby the inlay fabric has relatively great transverse stiffness together with low longitudinal stiffness and at the same time is suitable to accomodate tensile forces in longitudinal direction.
Inventors
- 👤 Hugo Heeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:07
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/34; B65G15/36; B65G2201/00; B65G2201/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
100 words
A conveyor belt which is transverely stiff, has low longitudinal stiffness, and is capable of accommodating tensile forces, comprising, in combination, an elastomer and an inlay fabric embedded within said elastomer, said inlay fabric comprising: warp threads to be arranged longitudinally of the conveyor belt; and relatively stiff weft threads extending transversely of the warp threads, said weft threads having a diameter in the range of 0.2 mm. to 1.0 mm., the density of said weft threads ranging from 60 to 120 threads per 100 mm. of fabric length, and said warp threads having a crimp between 6.5% and 22.5%.
Claim 2
Dependent Claim
100 words
A conveyor belt which is transverely stiff, has low longitudinal stiffness, and is capable of accommodating tensile forces, comprising, in combination, an elastomer and an inlay fabric embedded within said elastomer, said inlay fabric comprising: warp threads to be arranged longitudinally of the conveyor belt; and relatively stiff weft threads extending transversely of the warp threads, said weft threads having a diameter in the range of 0.2 mm. to 1.0 mm., the density of said weft threads ranging from 60 to 120 threads per 100 mm. of fabric length, and said warp threads having a crimp between 6.5% and 22.5%.
Claim 3
Dependent Claim
14 words
A conveyor belt according to claim 1, wherein the weft threads have no crimp.
Claim 4
Dependent Claim
14 words
A conveyor belt according to claim 1, wherein the weft threads are synthetic monofilaments.
Claim 5
Dependent Claim
17 words
A conveyor belt according to claim 1, wherein the weft threads of a diameter of 0.4 mm.
Claim 6
Dependent Claim
23 words
A conveyor belt according to claim 1, wherein the density of the weft threads is 80 threads per 100 mm of fabric length.
Claim 7
Dependent Claim
16 words
A conveyor belt according to claim 1, wherein the warp threads have a crimp of 18%.
Claim 8
Dependent Claim
29 words
A conveyor belt according to claim 1, wherein the warp threads are so selected that the fabric will have a tensile strength up to 200 kp/cm of fabric width.
Claim 9
Dependent Claim
28 words
A conveyor belt according to claim 7, wherein the warp threads are so selected that the fabric will have a tensile strength of 100 kp/cm of fabric width.
Claim 10
Dependent Claim
46 words
A conveyor belt as recited in claim 1, wherein said weft threads have no crimp and have a diameter of 0.4 mm., the density of said weft threads is 80 threads per 100 mm. of fabric length, and said warp threads have a crimp of 18%.
Claim 11
Dependent Claim
14 words
A conveyor belt according to claim 9, wherein the weft threads are synthetic monofilaments.
Claim 12
Dependent Claim
28 words
A conveyor belt according to claim 9, wherein the warp threads are so selected that the fabric will have a tensile strength of 100 kp/cm of fabric width.
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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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |