US4184589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensionally stable synthetic conveyor belt
Assignee: Habasit AG
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Filing: 1978-04-21
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Granted: 1980-01-22
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Expires: 1998-04-21
Abstract
Abstract A dimensionally stable synthetic internal support conveyor belt which comprises (a) at least one homogeneous, flat tape of a molecularly oriented plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 . This tape has a fixed profile on both of its large area surfaces and includes reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape. Binding layers are composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 and interlock with the profile on both sides of the tape. Each of the binding layers may be covered with a synthetic fabric. Each of the two binding layers with each of the two synthetic fabrics may be covered with a cover plate of elastomers or thermoplastics.
Inventors
- 👤 Fernand Habegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/02; B32B7/022; B32B27/00; B32B27/06; B32B27/08; B29; B29D; B29D29/00; B29D29/06; B29D29/08; B29D29/085; B32B27/12; B32B27/34; B32B3/00; B32B3/26; B32B3/30; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/34; B65G15/42; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/70; B32B2307/732; B32B2307/734; B32B2377/00; B32B2433/00; B32B2433/02; B65G2201/00; B65G2201/02; B65G2201/04; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24529; Y10T428/24628; Y10T428/24942; Y10T442/00; Y10T442/60; Y10T442/601
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
103 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 2
Dependent Claim
103 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 3
Dependent Claim
19 words
A conveyor belt as defined in claim 1, wherein said flat tape comprises several homogeneous, flat profiled plastic tapes.
Claim 4
Dependent Claim
35 words
A conveyor belt as defined in claim 1, wherein the plastic tape consists of a solvent-sealable polyamide, the binding layers consist of plastified polyamide and synthetic fabrics consist of polyamide and cover the binding layers.
Claim 5
Dependent Claim
22 words
A conveyor belt as defined in claim 3 wherein a cover plate covers each of the synthetic fabrics and consists of polyamide.
Claim 6
Dependent Claim
108 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly oriented plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including outwardly directed projections in the form of triangular pyramids arranged to extend predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 7
Dependent Claim
108 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly oriented plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including outwardly directed projections in the form of triangular pyramids arranged to extend predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 8
Dependent Claim
19 words
A conveyor belt as defined in claim 5 wherein a synthetic fabric covers each of the two binding layers.
Claim 9
Dependent Claim
23 words
A conveyor belt as defined in claim 6 wherein a cover plate of elastomers or thermoplastics covers each of the two synthetic fabrics.
Claim 10
Dependent Claim
38 words
A conveyor belt as defined in claim 7 wherein the flat tape consists of a solvent-sealable polyamide, the binding layers consist of plastified polyamide, and the synthetic fabrics, as well as the cover plates also consist of polyamide.
Claim 11
Dependent Claim
21 words
A conveyor belt as defined in claim 5 wherein the outwardly directed projections define parallel grooves extending longitudinally of the belt.
Claim 12
Dependent Claim
31 words
A conveyor belt as defined in claim 5 wherein the homogeneous, flat tape has a thickness periodically varying in the transverse direction of the tape and is composed of plastic material.
Claim 13
Dependent Claim
19 words
A conveyor belt as defined in claim 5 wherein said flat tape comprises several homogeneous, flat profiled plastic tapes.
Claim 14
Dependent Claim
106 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including parallel grooves and reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 15
Dependent Claim
106 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces, (c) said profile including parallel grooves and reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 kp/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 16
Dependent Claim
116 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces and having a thickness periodically varying in the transverse direction of the tape, (c) said profile including reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 pk/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
Claim 17
Dependent Claim
116 words
A dimensionally stable synthetic internal support conveyor belt which comprises: (a) at least one homogeneous, flat tape composed of a molecularly orientated plastic with a modulus of elasticity of 15,000 to 25,000 kp/cm 2 , (b) said tape having a fixed profile on both of its large area surfaces and having a thickness periodically varying in the transverse direction of the tape, (c) said profile including reinforcement ribs arranged with their components extending predominantly in the longitudinal direction of the tape, and (d) binding layers composed of an elastic material with a modulus of elasticity of 800 to 1,000 pk/cm 2 , (e) said binding layers interlocking with the profile on both sides of the tape.
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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |