US3861518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveying apparatus
Assignee: BorgWarner Ltd
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Filing: 1973-10-15
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Granted: 1975-01-21
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Expires: 1993-10-15
Abstract
Abstract A bucket elevator reclaimer which is used to dig or elevate bulk material in which a steel cord reinforced belt is used to support and carry the buckets. The belt comprises a rubber or rubber-like covering reinforced with steel cable and at intervals along the length of the belt, clamps which extend across the belt and engage the cable are provided to which the buckets are fastened.
Inventors
- 👤 David W Dibben
- 👤 Madhusudan R Bastikar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:15
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; B65G17/42; B65G17/44; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
259 words
In a bucket wheel reclaiming apparatus which comprises a pair of spaced and supported pulleys, an endless loop belt of flexible and elastic material having an inner loop layer with a surface entrained to pass over and engage said pulleys, and said belt having a plurality of longitudinally extending and laterally spaced reinforcing cables embedded therein with the cables outwardly of the pulley engaging inner surface of the belt, the improvement which comprises: a. the inner loop surface of flexible material inwardly of the cables being formed imperforate and arranged to engage each pulley across the full width of the belt between laterally spaced outer edges of the belt and to continuously engage each pulley along the full longitudinal length of a portion of the belt turning around the periphery of each pulley; b. said belt having a plurality of longitudinally spaced apart discontinuous portions of the flexible material projecting outwardly of the inner continuous loop surface to encompass the cables and project outwardly of the cables; c. clamping means located outwardly of the inner continuous loop surface and in spaces between the discontinuous portions of the flexible material with said clamping means being securely attached directly to said cables, and an outer surface of the clamping means comprising a plate exposed outwardly of said belt along the entire lateral width of the plate and with the plate spanning the entire distance between the edges of said belt; and, d. a bucket removably secured to the exposed outer surface of the clamping means plate and thus to the belt.
Claim 2
Dependent Claim
85 words
An apparatus according to claim 1 in which said clamping means plate has an outer surface parallel to the cables and which across the full width thereof between laterally spaced edges of the belt is contiguous to the outer surfaces of adjacent of the longitudinally discontinuous portions of the flexible material, to present a bucket mounting plate surface of the clamping means which extends the full width of the belt and is flush with the outer surfaces of the discontinuous portions of the flexible material.
References Cited (Backward Citations)
US2873844A
Cited
US3670870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |