US2734355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
wenzelberger
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:24
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/90; A23B2/905; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; C; C12; C12H; C12H6/00; C12H6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN APPARATUS FOR THE CONCENTRATION OF A LIQUID BEARING SOLIDS AND SOLVENT USEFUL IN COMBINATION WITH REFRIGERANT MEANS FOR FORMING WITHIN THE SAID LIQUID A MASS OF SMALL SOLVENT CRYSTALS, THE STRUCTURE COMPRISING A COLLECTING CHAMBER FOR SAID LIQUID AND CRYSTALS, SAID CHAMBER HAVING LATERAL WALL PORTIONS TAPERING AND UPWARDLY EXTENDING FROM THE BASE THEROF, SAID TAPERING LATERAL WALL PORTION DEFINING AN OPENING IN SAID CHAMBER, AN AUGER EXTENDING FROM SAID BASE UPWARDLY THROUGH SAID LATERAL WALLS AND TERMINATING AT ITS UPPER END IN SAID TAPERING LATERAL WALL PORTIONS, A SCREEN MEMBER SECURED BELOW SAID AUGER IN CLOSELY SPACED RELATION THERWITH, AND MEANS TO APPLY SUCTION PRESSURE TO SAID SCREEN WHEN SAID CRYSTALS AND LIQUID COVER SAID AUGER AND SCREEN TO DRAW SAID LIQUID THERETHROUGH.
Claim 2
Dependent Claim
125 words
IN APPARATUS FOR THE CONCENTRATION OF A LIQUID BEARING SOLIDS AND SOLVENT USEFUL IN COMBINATION WITH REFRIGERANT MEANS FOR FORMING WITHIN THE SAID LIQUID A MASS OF SMALL SOLVENT CRYSTALS, THE STRUCTURE COMPRISING A COLLECTING CHAMBER FOR SAID LIQUID AND CRYSTALS, SAID CHAMBER HAVING LATERAL WALL PORTIONS TAPERING AND UPWARDLY EXTENDING FROM THE BASE THEROF, SAID TAPERING LATERAL WALL PORTION DEFINING AN OPENING IN SAID CHAMBER, AN AUGER EXTENDING FROM SAID BASE UPWARDLY THROUGH SAID LATERAL WALLS AND TERMINATING AT ITS UPPER END IN SAID TAPERING LATERAL WALL PORTIONS, A SCREEN MEMBER SECURED BELOW SAID AUGER IN CLOSELY SPACED RELATION THERWITH, AND MEANS TO APPLY SUCTION PRESSURE TO SAID SCREEN WHEN SAID CRYSTALS AND LIQUID COVER SAID AUGER AND SCREEN TO DRAW SAID LIQUID THERETHROUGH.
References Cited (Backward Citations)
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Cited
US722632A
Cited
US1445917A
Cited
US1906534A
Cited
US2121208A
Cited
US2324869A
Cited
US2386052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |