Patent US3590980A successfully refreshed from Google Patents.
US3590980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer belt supports
Assignee: Individual
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Filing: 1969-05-19
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Granted: 1971-07-06
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Expires: 1989-05-19
Abstract
Abstract In a belt conveyor where the belt consists of rubber or like material, that part of the conveyor belt where the material to be conveyed is dropped onto the belt, is supported by a mat of elastic material to prevent damage to the belt, the mat being secured outside the edges of the conveyor belt.
Inventors
- 👤 Bengt Lennart Bengtsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
B; B65; B65G; B65G21/00; B65G21/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
87 words
A belt conveyor comprising a frame, guide pulleys mounted in said frame, an endless belt travelling around said guide pulleys, a loading station for delivering material to be conveyed onto the belt, a mat of elastic material disposed beneath said loading station and said belt and adapted to support said belt during loading operation, and means located outwardly of the longitudinal edges of said belt for suspending said mat underneath said belt such that the section of said mat underlying said belt is free of underlying support.
Claim 2
Dependent Claim
87 words
A belt conveyor comprising a frame, guide pulleys mounted in said frame, an endless belt travelling around said guide pulleys, a loading station for delivering material to be conveyed onto the belt, a mat of elastic material disposed beneath said loading station and said belt and adapted to support said belt during loading operation, and means located outwardly of the longitudinal edges of said belt for suspending said mat underneath said belt such that the section of said mat underlying said belt is free of underlying support.
Claim 3
Dependent Claim
47 words
A belt conveyor according to claim 1, wherein said mat is suspended at an elevation such that said mat is spaced from said belt during nonloading operation of said belt conveyor, and said belt is adapted to contact said mat during loading operation of said belt conveyor.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |