Patent US3239067A successfully refreshed from Google Patents.
US3239067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined clarifier and digester of high capacity
Assignee: Lakeside Engineering Corp
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Filing: 1963-03-15
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Granted: 1966-03-08
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Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Hikes Burd
- 👤 Grujanac Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:39
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0039; B01D21/0042; B01D21/10; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2433; B01D21/245; B01D21/2488; B01D21/0003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A COMBINATION CLARIFYING AND DIGESTION TANK, A SUBSTANTIALLY CIRCULAR TANK HAVING A VERTICAL CYLINDRICAL WALL AND A BOTTOM WALL, AN ANNULAR SKIRT DEPENDING WITHIN THE TANK IN SPACED RELATION TO THE CYLINDRICAL WALL THEREOF, SAID SKIRT DIVIDING THE UPPER PORTION OF THE TANK INTO A CENTRALLY DISPOSED CLARIFYING COMPARTMENT WITHIN THE SKIRT AND A PERIPHERAL RACE EXTENDING AROUND THE SKIRT AND BETWEEN THE SKIRT AND THE CYLINDRICAL WALL OF THE TANK, AN INLET CONDUIT SUPPLYING INCOMING LIQUID TO THE PERIPHERAL RACE, A LAUNDER POSITIONED WITHIN THE CLARIFYING COMPARTMENT FOR DECANTING CLEAR LIQUID, MEANS FOR DISCHARGING THE CLEAR LIQUID FROM THE LAUNDER, A STACK CONDUIT LOVATED CONCENTRICALLY WITHIN THE DEPENDING SKIRT, SAID STACK CONDUIT BEING OPEN AT EACH END AND HAVING A CYLINDRICAL PART EXTENDING UPWARDLY THROUGH THE CLARIFYING CHAMBER TO PROJECT BEYOND THE SAID CHAMBER, A BAFFLE ARRANGEMENT LOCATED WITHIN THE TANK BELOW THE STACK CONDUIT AND SAID BAFFLE ARRANGEMENT BEING INCLINED UPWARDLY FROM THE CYLINDRICAL WALL OF THE TANK TO THE STACK CONDUIT SO AS TO SEPARATE THE CLARIFYING COMPARTMENT AND THE PERIPHERAL RACE IN THE UPPER PORTION OF THE TANK FROM
Claim 2
Dependent Claim
184 words
IN A COMBINATION CLARIFYING AND DIGESTION TANK, A SUBSTANTIALLY CIRCULAR TANK HAVING A VERTICAL CYLINDRICAL WALL AND A BOTTOM WALL, AN ANNULAR SKIRT DEPENDING WITHIN THE TANK IN SPACED RELATION TO THE CYLINDRICAL WALL THEREOF, SAID SKIRT DIVIDING THE UPPER PORTION OF THE TANK INTO A CENTRALLY DISPOSED CLARIFYING COMPARTMENT WITHIN THE SKIRT AND A PERIPHERAL RACE EXTENDING AROUND THE SKIRT AND BETWEEN THE SKIRT AND THE CYLINDRICAL WALL OF THE TANK, AN INLET CONDUIT SUPPLYING INCOMING LIQUID TO THE PERIPHERAL RACE, A LAUNDER POSITIONED WITHIN THE CLARIFYING COMPARTMENT FOR DECANTING CLEAR LIQUID, MEANS FOR DISCHARGING THE CLEAR LIQUID FROM THE LAUNDER, A STACK CONDUIT LOVATED CONCENTRICALLY WITHIN THE DEPENDING SKIRT, SAID STACK CONDUIT BEING OPEN AT EACH END AND HAVING A CYLINDRICAL PART EXTENDING UPWARDLY THROUGH THE CLARIFYING CHAMBER TO PROJECT BEYOND THE SAID CHAMBER, A BAFFLE ARRANGEMENT LOCATED WITHIN THE TANK BELOW THE STACK CONDUIT AND SAID BAFFLE ARRANGEMENT BEING INCLINED UPWARDLY FROM THE CYLINDRICAL WALL OF THE TANK TO THE STACK CONDUIT SO AS TO SEPARATE THE CLARIFYING COMPARTMENT AND THE PERIPHERAL RACE IN THE UPPER PORTION OF THE TANK FROM
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |