US3163248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing machine
Assignee: Fisons Fertilizers Ltd
•
Filing: 1961-01-27
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Granted: 1964-12-29
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Expires: 1981-01-27
Abstract
No abstract record available.
Inventors
- 👤 Farquhar John Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:37
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/06; G01G11/00; G01G11/003; G01G11/04; G01G21/00; Y; Y10; Y10S; Y10S177/00; Y10S177/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A WEIGHING MACHINE ADAPTED TO MEASURE CONTINUOUSLY THE LOAD ON A GIVEN LENGTH OF CONVEYOR BELT, SAID MACHINE COMPRISING A SUPPORTING STRUCTURE, A FULCRUM ATTACHED TO SAID SUPPORTING STRUCTURE, A FLEXIBLE LEVER PIVOTED ABOUT SAID FULCRUM, A TRANSDUCER ON SAID SUPPORTING STRUCTURE, MEANS EXTENDING BETWEEN THE PRESURE TRANSDUCER AND ONE END OF SAID FLEXIBLE LEVER AND CONTACTED AT ALL TIMES BY SAID ONE END, A PIVOT ATTACHED TO SAID SUPPORTING STRUCTURE, A MAIN FRAME BALANCED ABOUT SAID PIVOT, A HINGE CONNECTING THE OTHER END OF SAID FLEXIBLE LEVER TO SAID MAIN FRAME, A DASHPOT CONNECTED BETWEEN SAID MAIN FRAME AND SAID SUPPORTING STRUCTURE AND AN IDLER ROLLER MOUNTED ON ONE END OF SAID MAIN FRAME, SAID IDLER ROLLER BEING ADAPTED TO BEAR AGAINST THE UNDERSIDE OF SAID CONVEYOR BELT AND SAID DASHPOT AND SAID IDLER ROLLER BEING ON THE SAME SIDE OF THE PIVOT AS THE HINGE BETWEEN THE FLEXIBLE LEVER AND THE MAIN FRAME.
Claim 2
Dependent Claim
155 words
A WEIGHING MACHINE ADAPTED TO MEASURE CONTINUOUSLY THE LOAD ON A GIVEN LENGTH OF CONVEYOR BELT, SAID MACHINE COMPRISING A SUPPORTING STRUCTURE, A FULCRUM ATTACHED TO SAID SUPPORTING STRUCTURE, A FLEXIBLE LEVER PIVOTED ABOUT SAID FULCRUM, A TRANSDUCER ON SAID SUPPORTING STRUCTURE, MEANS EXTENDING BETWEEN THE PRESURE TRANSDUCER AND ONE END OF SAID FLEXIBLE LEVER AND CONTACTED AT ALL TIMES BY SAID ONE END, A PIVOT ATTACHED TO SAID SUPPORTING STRUCTURE, A MAIN FRAME BALANCED ABOUT SAID PIVOT, A HINGE CONNECTING THE OTHER END OF SAID FLEXIBLE LEVER TO SAID MAIN FRAME, A DASHPOT CONNECTED BETWEEN SAID MAIN FRAME AND SAID SUPPORTING STRUCTURE AND AN IDLER ROLLER MOUNTED ON ONE END OF SAID MAIN FRAME, SAID IDLER ROLLER BEING ADAPTED TO BEAR AGAINST THE UNDERSIDE OF SAID CONVEYOR BELT AND SAID DASHPOT AND SAID IDLER ROLLER BEING ON THE SAME SIDE OF THE PIVOT AS THE HINGE BETWEEN THE FLEXIBLE LEVER AND THE MAIN FRAME.
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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) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |