US3693218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor belts
Assignee: Individual
•
Filing: 1971-10-06
•
Granted: 1972-09-26
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Expires: 1991-10-06
Abstract
Abstract This invention relates to conveyor belts and particularly to methods for making a joint in a conveyor belt that is made from rubber or like elastomeric material, that is provided with a reinforcement constituted by at least one layer of longitudinal metal cables. In accordance with the invention, two connecting strips of longitudinal metal cables are positioned in bridge fashion over the abutting ends of the reinforcing layer of two belt portions and these strips are placed on either side of the reinforcing layer to which they are connected by a thin layer of rubber or like elastomeric material, which adheres to both of them.
Inventors
- 👤 Pierre Jaubert
- 👤 Jean Lassere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:52
CPC Classifications
F; F16; F16G; F16G3/00; F16G3/10; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1664
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A method of making a joint for a conveyor belt made from rubber or like elastomeric material, provided with a reinforcement constituted by at least one layer of longitudinal metal cables, which method consists in positioning two connecting strips of longitudinal metal cables in bridge fashion over the abutting ends of the reinforcing layer of the belt, said strips being placed on either side of said reinforcing layer and being connected thereto by a thin layer of elastomer adhering to both of them.
Claim 2
Independent Claim
83 words
A method of making a joint for a conveyor belt made from rubber or like elastomeric material, provided with a reinforcement constituted by at least one layer of longitudinal metal cables, which method consists in positioning two connecting strips of longitudinal metal cables in bridge fashion over the abutting ends of the reinforcing layer of the belt, said strips being placed on either side of said reinforcing layer and being connected thereto by a thin layer of elastomer adhering to both of them.
Claim 3
Dependent Claim
35 words
A method according to claim 1, wherein the metal cables forming said two connecting strips have an elastic elongation at least equal to the elongation of the cables of said reinforcing layer of the belt.
Claim 4
Dependent Claim
61 words
A method according to claim 1, wherein two fabric strips are positioned over part of the ends of said reinforcing layer to cover the junction line between the latter, on each side of the belt, and wherein further fabric straps are positioned to cover the ends of each said connecting strip and a part of the reinforcing layer of the belt.
Claim 5
Dependent Claim
23 words
A method according to claim 1, wherein the ends of the reinforcing layer of the belt are cut up into complementary saw-tooth shapes.
Claim 6
Dependent Claim
29 words
A method according to claim 1, wherein the diameter of the cables of said connecting strips is less than the diameter of the longitudinal reinforcing cables of the belt.
Claim 7
Dependent Claim
74 words
A conveyor belt of rubber or like elastomeric material Provided with a reinforcement constituted by at least one layer of longitudinal metal cables, said belt having a joint between two abutting ends of said reinforcing layer, said joint comprising two connecting strips of longitudinal metal cables located in bridge fashion over said abutting ends on both sides of said belt and connected thereto by a thin layer of elastomer adhering to both of them.
Claim 8
Dependent Claim
74 words
A conveyor belt of rubber or like elastomeric material Provided with a reinforcement constituted by at least one layer of longitudinal metal cables, said belt having a joint between two abutting ends of said reinforcing layer, said joint comprising two connecting strips of longitudinal metal cables located in bridge fashion over said abutting ends on both sides of said belt and connected thereto by a thin layer of elastomer adhering to both of them.
Claim 9
Dependent Claim
62 words
A conveyor belt according to claim 6, wherein two fabric strips are positioned over part of the ends of said reinforcing layer to cover the junction line between the latter, on each side of the belt, and wherein further fabric straps are positioned to cover the ends of each said connecting strip and a part of the reinforcing layer of the belt.
Claim 10
Dependent Claim
24 words
A conveyor belt according to claim 6, wherein the ends of the reinforcing layer of the belt are cut up into complementary saw-tooth shapes.
Claim 11
Dependent Claim
30 words
A conveyor belt according to claim 6, wherein the diameter of the cables of said connecting strips is less than the diameter of the longitudinal reinforcing cables of the belt.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |