US4375845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tail section for multiple chain drag conveyor
Assignee: Bunge Corp
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Filing: 1980-11-21
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Granted: 1983-03-08
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Expires: 2000-11-21
Abstract
Abstract A tail assembly for a multiple chain drag conveyor, including a take-up assembly and multiple tail shafts rotatably mounted on the take-up assembly, each of which carries a chain engaging sprocket. Adjustment devices are connected to the tail shafts. The shafts are capable of travel in a direction parallel to the direction of travel of the chain engaged by the associated sprocket and are caused to travel in that direction by the adjustment devices to permit individual tensioning and adjustment of each of the chains.
Inventors
- 👤 Al L. Chambers
- 👤 Carl V. Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:49
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/18; B65G19/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
171 words
A tail assembly for a multiple chain drag conveyor having at least two independent conveyor chains each carrying an independent flight of paddles and capable of independent, continuous movement on an endless path comprising: (a) a take-up frame assembly mounted within said tail assembly; (b) a plurality of tail shaft mechanisms mounted in common within said tail assembly which each include a tail shaft having two ends carried on the take-up frame assembly, a separate one of the tail shafts being provided for each of the chains of the conveyor, each end of each tail shaft extending beyond the flight of paddles; said tail shafts being mounted noncoaxial to each other to allow individual adjustment of each shaft; (c) offset chain engaging means mounted upon each tail shaft, each capable of carrying one chain; and, (d) adjustment means mounted on said take-up frame and connected to at least one end of each of said tail shafts for individually moving said tail shafts to separately tension and adjust each of said chains.
Claim 2
Dependent Claim
171 words
A tail assembly for a multiple chain drag conveyor having at least two independent conveyor chains each carrying an independent flight of paddles and capable of independent, continuous movement on an endless path comprising: (a) a take-up frame assembly mounted within said tail assembly; (b) a plurality of tail shaft mechanisms mounted in common within said tail assembly which each include a tail shaft having two ends carried on the take-up frame assembly, a separate one of the tail shafts being provided for each of the chains of the conveyor, each end of each tail shaft extending beyond the flight of paddles; said tail shafts being mounted noncoaxial to each other to allow individual adjustment of each shaft; (c) offset chain engaging means mounted upon each tail shaft, each capable of carrying one chain; and, (d) adjustment means mounted on said take-up frame and connected to at least one end of each of said tail shafts for individually moving said tail shafts to separately tension and adjust each of said chains.
Claim 3
Dependent Claim
15 words
A tail assembly according to claim 1, wherein said chain engaging means is a sprocket.
Claim 4
Dependent Claim
83 words
A tail assembly for a multiple chain drag conveyor, according to claim 1, wherein said adjustment means include an eye bolt, one end of which is in engaging contact with one end of said tail shaft and the threaded end of which passes through an adjustment mount and an adjustment nut threaded upon the threaded end of said eye bolt to move said eye bolt and move said tail shaft in a direction substantially parallel to the direction of movement of said chain.
Claim 5
Dependent Claim
21 words
A tail assembly, according to claim 1, wherein each paddle is mounted perpendicular to the direction of motion of said chain.
Claim 6
Dependent Claim
23 words
A tail assembly for a multiple chain drag conveyor, according to claim 1, wherein said tail shafts are of substantially the same length.
Claim 7
Dependent Claim
17 words
A tail assembly, according to claim 5 wherein said tail shafts are substantially interchangeable with one another.
References Cited (Backward Citations)
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US2760621A
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US2759594A
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US2828853A
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US3283882A
Cited
US3845375A
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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) | 1986-03-07 | 1986-09-06 | 1987-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-07 | 1990-09-06 | 1991-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-07 | 1994-09-06 | 1995-03-08 | $7700.00 | Window Closed / Lapsed |