US2805989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for increasing rate of flow in sewage units
Assignee: LOUISE P GREER
•
Filing: 1954-06-14
•
Granted: 1957-09-10
•
Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 John H Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:00
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28; C02F3/02; C02F3/04; C02F3/046; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A PROCESS FOR FACILITATING WASTE LIQUID FLOW IN A SEWAGE UNIT COMPRISING AT LEAST ONE OF A SEPTIC TANK, LATERAL AND CESSPOOL DISPOSED IN THE GROUND FOR DRAINAGE FLOW OF SAID LIQUID THROUGH PERMEABLE WALLS IN SAID UNIT, WHEREIN DRAINAGE FLOW IS IMPEDED BY THE ACCUMULATION OF SOLID WASTE MATTER INCLUDING LIME AND MAGNESIUM SOAPS AND ORGANIC MATTER INCLUDING GREASE, FATS AND SUBSTANCES OF ANIMAL AND VEGETABLE ORIGIN WITHIN SAID SEWAGE UNIT AND WITHIN THE POROUS SOIL SURROUNDING THE UNIT, WHICH COMPRISES ADDING TO SAID SEWAGE UNIT A COMPOSITION TO REDUCE THE SURFACE TENSION OF SAID WASTE LIQUID AND INCREASE ITS DRAINAGE RATE THROUGH SAID PERMEABLE WALLS AND THE POROUS SOIL SURROUNDING THE SAME, SAID COMPOSITION COMPRISING; A WETTING AGENT HAVING A SUBSTANTIALLY NEUTRAL PH AND INERTNESS TO BACTERIA; AND A PHOSPHATE HAVING THE CAPACITY TO DISSOLVE SAID SOAPS AND SAID ORGANIC MATTER, AND SAID PHOSPHATE BEING PRESENT IN AN AMOUNT UP TO ABOUT 20% OF THE WETTING AGENT; AND SAID COMPOSITION BEING ADDED IN THE AMOUNT OF UP TO ABOUT ONE-HALF OF 1% OF THE LIQUID IN THE SEWAGE UNIT.
Claim 2
Dependent Claim
181 words
A PROCESS FOR FACILITATING WASTE LIQUID FLOW IN A SEWAGE UNIT COMPRISING AT LEAST ONE OF A SEPTIC TANK, LATERAL AND CESSPOOL DISPOSED IN THE GROUND FOR DRAINAGE FLOW OF SAID LIQUID THROUGH PERMEABLE WALLS IN SAID UNIT, WHEREIN DRAINAGE FLOW IS IMPEDED BY THE ACCUMULATION OF SOLID WASTE MATTER INCLUDING LIME AND MAGNESIUM SOAPS AND ORGANIC MATTER INCLUDING GREASE, FATS AND SUBSTANCES OF ANIMAL AND VEGETABLE ORIGIN WITHIN SAID SEWAGE UNIT AND WITHIN THE POROUS SOIL SURROUNDING THE UNIT, WHICH COMPRISES ADDING TO SAID SEWAGE UNIT A COMPOSITION TO REDUCE THE SURFACE TENSION OF SAID WASTE LIQUID AND INCREASE ITS DRAINAGE RATE THROUGH SAID PERMEABLE WALLS AND THE POROUS SOIL SURROUNDING THE SAME, SAID COMPOSITION COMPRISING; A WETTING AGENT HAVING A SUBSTANTIALLY NEUTRAL PH AND INERTNESS TO BACTERIA; AND A PHOSPHATE HAVING THE CAPACITY TO DISSOLVE SAID SOAPS AND SAID ORGANIC MATTER, AND SAID PHOSPHATE BEING PRESENT IN AN AMOUNT UP TO ABOUT 20% OF THE WETTING AGENT; AND SAID COMPOSITION BEING ADDED IN THE AMOUNT OF UP TO ABOUT ONE-HALF OF 1% OF THE LIQUID IN THE SEWAGE UNIT.
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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |