US3276753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lifting and blending loose solids
Assignee: Fuller Co
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Filing: 1964-08-17
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Granted: 1966-10-04
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Paul E Solt
- 👤 Willard F Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0025; B01F; B01F33/00; B01F33/40; B01F33/405; B01F33/4051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A LIFT BLENDING SYSTEM FOR LOOSE SOLID MATERIAL COMPRISING A SUBSTANTIALLY UPRIGHT VESSEL, AT LEAST ONE SUBSTANTIALLY UPRIGHT LIFT TUBE IN THE VESSEL, SAID TUBE HAVING ITS UPPER AND WITHIN AND SPACED FROM THE TOP OF THE VESSEL TO PROVIDE A DISENGAGING ZONE THEREBETWEEN AND HAVING ITS INTAKE IN A LOWER PORTION OF THE VESSEL, CONDUIT MEANS POSITIONED TO DIRECT A STREAM OF GAS INTO THE INTAKE OF THE LIFT TUBE AND HAVING AN UNRESTRICTED GAS PORT, SAID GAS PORT BEING POSITIONED BELOW THE INTAKE OF THE LIFT TUBE AND WITHIN THE STATIC REPOSE ZONE AND SPACED FROM THE INTAKE OF THE LIFT TUBE TO FORM A GRAVITY MATERIAL INLET BETWEEN THE INTAKE AND THE GAS PORT, VALVE MEANS FOR CONTROLLING THE GRAVITY MATERIAL INLET, AND MEANS FOR FLOWING A STREAM OF GAS THROUGH THE GAS PORT AND THE LIFT TUBE TO CARRY MATERIAL ENTERING THE GRAVITY MATERIAL INLET BY GRAVITY FROM THE MATERIAL SUPPLY ZONE AND DISCHARGE IT IN THE DISENGAGING ZONE.
Claim 2
Dependent Claim
163 words
A LIFT BLENDING SYSTEM FOR LOOSE SOLID MATERIAL COMPRISING A SUBSTANTIALLY UPRIGHT VESSEL, AT LEAST ONE SUBSTANTIALLY UPRIGHT LIFT TUBE IN THE VESSEL, SAID TUBE HAVING ITS UPPER AND WITHIN AND SPACED FROM THE TOP OF THE VESSEL TO PROVIDE A DISENGAGING ZONE THEREBETWEEN AND HAVING ITS INTAKE IN A LOWER PORTION OF THE VESSEL, CONDUIT MEANS POSITIONED TO DIRECT A STREAM OF GAS INTO THE INTAKE OF THE LIFT TUBE AND HAVING AN UNRESTRICTED GAS PORT, SAID GAS PORT BEING POSITIONED BELOW THE INTAKE OF THE LIFT TUBE AND WITHIN THE STATIC REPOSE ZONE AND SPACED FROM THE INTAKE OF THE LIFT TUBE TO FORM A GRAVITY MATERIAL INLET BETWEEN THE INTAKE AND THE GAS PORT, VALVE MEANS FOR CONTROLLING THE GRAVITY MATERIAL INLET, AND MEANS FOR FLOWING A STREAM OF GAS THROUGH THE GAS PORT AND THE LIFT TUBE TO CARRY MATERIAL ENTERING THE GRAVITY MATERIAL INLET BY GRAVITY FROM THE MATERIAL SUPPLY ZONE AND DISCHARGE IT IN THE DISENGAGING ZONE.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |