Patent US3587818A successfully refreshed from Google Patents.
US3587818A
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US
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Means and method for transporting articles with a conveyor system
Assignee: Doosan Bobcat North America Inc
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Filing: 1968-07-16
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Granted: 1971-06-28
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Expires: 1988-07-16
Abstract
Abstract A CONVEYOR SYSTEM HAS A MAIN CONVEYOR AND A AUXILIARY CONVEYOR INTERSECTING THE MAIN CONVEYOR TO ENABLE TRANSFERRING OF ARTICLES BETWEEN THE CONVEYORS. THE MAIN CONVEYOR HAS A SECTION OF HELICAL THREAD ROLLERS ADJACENT THE INTERSECTION WITH THE AUXILIARY CONVEYOR. A ROLLER ON EACH SIDE OF THE SECTION OF HELICAL THREAD ROLLERS CAN BE RAISED ABOVE THE LEVEL OF THE CONVEYOR TO BLOCK AN ARTICLE. THE HELICAL THREADS THEN OPERATE TO PRODUCE A LATERAL ON THE ARTICLE TO MOVE THE ARTICLE TO THE AUXILIARY CONVEYOR.
Inventors
- 👤 Howard C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:12
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/53; B65G47/54; B65G47/74; B65G47/76; B65G47/766; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |