Patent US3140610A successfully refreshed from Google Patents.
US3140610A
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Assignee: United States Steel Corp
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Filing: 1962-03-21
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Granted: 1964-07-14
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Shelby R Lanham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:20
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/0023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
APPARATUS FOR DETERMINING THE LEVEL OF BULK MATERIAL IN A BIN COMPRISING A GAGING MEMBER ARRANGED IN SAID BIN FOR SUPPORTING ENGAGEMENT ON SAID MATERIAL, SAID GAGING MEMBER BEING IN THE FORM OF A CONICALLY-SHAPED METAL SHELL, A VERTICALLY EXTENDING SPROCKET CHAIN HAVING A CONNECTION AT ITS LOWER END WITH THE UPPER END OF SAID SHELL, A SPROCKET WHEEL HAVING SPROCKET TEETH ABOUT ONLY A PORTION OF ITS PERIPHERY FOR MESHING ENGAGEMENT WITH SAID CHAIN, MEANS FOR ROTATING SAID WHEEL TO RENDER SAID SPROCKET TEETH EFFECTIVE DURING EACH REVOLUTION THEREOF TO ELEVATE SAID CHAIN A FIXED DISTANCE IN SAID BIN, SAID CHAIN BEING RELEASED UPON MOVEMENT OF SAID TEETH OUT OF MESHING ENGAGEMENT THEREWITH FOR DOWNWARD MOVE-
Claim 2
Dependent Claim
117 words
APPARATUS FOR DETERMINING THE LEVEL OF BULK MATERIAL IN A BIN COMPRISING A GAGING MEMBER ARRANGED IN SAID BIN FOR SUPPORTING ENGAGEMENT ON SAID MATERIAL, SAID GAGING MEMBER BEING IN THE FORM OF A CONICALLY-SHAPED METAL SHELL, A VERTICALLY EXTENDING SPROCKET CHAIN HAVING A CONNECTION AT ITS LOWER END WITH THE UPPER END OF SAID SHELL, A SPROCKET WHEEL HAVING SPROCKET TEETH ABOUT ONLY A PORTION OF ITS PERIPHERY FOR MESHING ENGAGEMENT WITH SAID CHAIN, MEANS FOR ROTATING SAID WHEEL TO RENDER SAID SPROCKET TEETH EFFECTIVE DURING EACH REVOLUTION THEREOF TO ELEVATE SAID CHAIN A FIXED DISTANCE IN SAID BIN, SAID CHAIN BEING RELEASED UPON MOVEMENT OF SAID TEETH OUT OF MESHING ENGAGEMENT THEREWITH FOR DOWNWARD MOVE-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |