Patent US4255514A successfully refreshed from Google Patents.
Patent US3194639A successfully refreshed from Google Patents.
US3194639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable mixing mechanism
Assignee: Individual
•
Filing: 1962-05-17
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Granted: 1965-07-13
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Expires: 1982-05-17
Abstract
No abstract record available.
Inventors
- 👤 Brown Curt
- 👤 Lyle B Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:49
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/10; B01F33/00; B01F33/50; B01F33/502; B01F33/5023; B01F35/00; B01F35/71; B01F35/717; B01F35/71775; C; C01; C01B; C01B17/00; C01B17/42; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A MIXING MECHANISM FOR MANUFACTURING SOLUTIONS OF A SOLID SOLUTE COMPRISING: A TANK HAVING A SEMI-CYCLINDRICAL BOTTOM WALL; MEANS FOR INTRODUCING WATER AND SOLID SOLUTE INTO THE TANK; A PAIR OF SPACED AXIALLY ALIGNED TUBULAR HOUSING RIGIDY MOUNTED IN THE TANK IN SPACED RELATION CLOSELY ADJACENT TO THE BOTTOM WALL, EACH HOUSING HAVING OPPOSITELY OPENING ENDS AND A LONGITUDINALLY TAPERING SLOT THEREIN ADJACENT TO AND DIRECTED TOWARD THE BOTTOM WALL; A SHAFT JOURNALED LONGITUDINALLY IN THE TANK CONCENTRICALLY OF THE HOUSINGS; A PAIR OF LONGITUDINALLY SPACED HELICAL SCREW IMPELLERS MOUNTED ON SAID SHAFT INDIVIDUALLY WITHIN SAID HOUSINGS WITH THE IMPELLERS BEING OF OPPOSITE PITCH; POWER MEANS HAVING DRIVING CONNECTION TO THE SHAFT FOR ROTATING SAID IMPELLERS WITHIN THEIR RESPECTIVE HOUSINGS TO FORCE LIQUID THROUGH SAID SLOTS IN SWEEPING RELATION AGAINST SAID BOTTOM WALL TO STIR MATERIAL TENDING TO SETTLE IN THE LIQUID; AND MEANS FOR RELEASING THE AQUEOUS SOLUTION FROM THE TANK.
Claim 2
Dependent Claim
152 words
A MIXING MECHANISM FOR MANUFACTURING SOLUTIONS OF A SOLID SOLUTE COMPRISING: A TANK HAVING A SEMI-CYCLINDRICAL BOTTOM WALL; MEANS FOR INTRODUCING WATER AND SOLID SOLUTE INTO THE TANK; A PAIR OF SPACED AXIALLY ALIGNED TUBULAR HOUSING RIGIDY MOUNTED IN THE TANK IN SPACED RELATION CLOSELY ADJACENT TO THE BOTTOM WALL, EACH HOUSING HAVING OPPOSITELY OPENING ENDS AND A LONGITUDINALLY TAPERING SLOT THEREIN ADJACENT TO AND DIRECTED TOWARD THE BOTTOM WALL; A SHAFT JOURNALED LONGITUDINALLY IN THE TANK CONCENTRICALLY OF THE HOUSINGS; A PAIR OF LONGITUDINALLY SPACED HELICAL SCREW IMPELLERS MOUNTED ON SAID SHAFT INDIVIDUALLY WITHIN SAID HOUSINGS WITH THE IMPELLERS BEING OF OPPOSITE PITCH; POWER MEANS HAVING DRIVING CONNECTION TO THE SHAFT FOR ROTATING SAID IMPELLERS WITHIN THEIR RESPECTIVE HOUSINGS TO FORCE LIQUID THROUGH SAID SLOTS IN SWEEPING RELATION AGAINST SAID BOTTOM WALL TO STIR MATERIAL TENDING TO SETTLE IN THE LIQUID; AND MEANS FOR RELEASING THE AQUEOUS SOLUTION FROM THE TANK.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |