Apparatus and method for conveying and elevating substances
Abstract
Abstract A CONVEYING ARRANGEMENT WHEREIN AN ENDLESS BELT HAS A WORKING RUN THAT TRAVELS IN AN INCLINED CHUTE HAVING A TOP WALL AND A SUBSTANTIALLY PARALLEL BOTTOM WALL ATTACHED THERETO BY SIDE WALLS WITH THE BOTTOM WALL BEING DISCONTINUOUS AND INTERRUPTED BY CUT-OUT PORTIONS, THE BELT HAVING A BEARING FACE SLIDABLY DISPOSED ON THE BOTTOM WALL AND CLOSING OFF THE CUT-OUT PORTIONS SO AS TO COMPLEMENT THE TOP AND SIDE WALLS IN ACHIEVING A CONDUIT EFFECT IN WHICH THE WORKING RUN TRAVELS. THE BELT HAS A WORKING FACE PROVIDED ON ITS OPPOSITE SIDES WITH UPSTANDING ENDLESS FLANGES AND, INTERMEDIATE THE SIDE FLANGES, WITH A PATTERN OF SPACED AND STAGGERED PROJECTING NUMBS THAT EXTEND SUBSTANTIALLY TO THE UNDERSURFACE OF THE TOP WALL FOR MOVING SUBSTANCES THROUGH THE CHUTE WITH THE BELT BEING DRIVEN THROUGH THE CHUTE AT A LINEAR SPEED GREATER THAN THE FALL BACK SPEED OF A CONVEYED SUBSTANCE ON THE WORKING FACE OF THE BELT.
Inventors
- 👤 David R Campbell
Bibliographic Details
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |