US3290462A
Expired / Lapsed
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Assignee: United States Steel Corp
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Filing: 1965-07-19
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Granted: 1966-12-06
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Lewis W Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:45
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/003; H; H01; H01H; H01H35/00; H01H35/02; H01H35/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE COMBINATION WITH A STORAGE CONTAINER, OF A GENERALLY HORIZONTAL SUPPORT THEREIN, A BALL-AND-SOCKET BEARING HAVING ITS SOCKET MOUNTED ON SAID SUPPORT, SAID SUPPORT HAVING AN OPENING THEREIN BELOW SAID BEARING, A RIGID REACH ROD DEPENDING FROM THE BALL OF SAID BEARING THROUGH SAID OPENING SO THAT THE LOWER END OF THE ROD WILL BE ENGAGED BY MATERIAL PILING UP IN SAID CONTAINER, AN ON-OFF SWITCH MOUNTED ABOVE SAID SUPPORT AND HAVING A PLUNGER PROJECTING DOWNWARDLY THEREFROM AND A RIGID ARM EXTENDING UPWARDLY FROM THE BALL OF SAID BEARING, SAID ARM HAVING A MUSHROOM-SHAPED HEAD ON ITS UPPER END ADAPTED TO ENGAGE SAID PLUNGER EXCEPT WHEN SAID ROD IS TILTED TO A SUBSTANTIAL ANGLE WITH THE VERTICAL.
Claim 2
Dependent Claim
117 words
THE COMBINATION WITH A STORAGE CONTAINER, OF A GENERALLY HORIZONTAL SUPPORT THEREIN, A BALL-AND-SOCKET BEARING HAVING ITS SOCKET MOUNTED ON SAID SUPPORT, SAID SUPPORT HAVING AN OPENING THEREIN BELOW SAID BEARING, A RIGID REACH ROD DEPENDING FROM THE BALL OF SAID BEARING THROUGH SAID OPENING SO THAT THE LOWER END OF THE ROD WILL BE ENGAGED BY MATERIAL PILING UP IN SAID CONTAINER, AN ON-OFF SWITCH MOUNTED ABOVE SAID SUPPORT AND HAVING A PLUNGER PROJECTING DOWNWARDLY THEREFROM AND A RIGID ARM EXTENDING UPWARDLY FROM THE BALL OF SAID BEARING, SAID ARM HAVING A MUSHROOM-SHAPED HEAD ON ITS UPPER END ADAPTED TO ENGAGE SAID PLUNGER EXCEPT WHEN SAID ROD IS TILTED TO A SUBSTANTIAL ANGLE WITH THE VERTICAL.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |