Patent US3175887A successfully refreshed from Google Patents.
US3175887A
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Apparatus for the aerobic digestion of night soil
Assignee: Wright Anderson (South Africa) Ltd
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Filing: 1963-04-15
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Granted: 1965-03-30
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Berg Michael A Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:30
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; B; B01; B01D; B01D21/00; B01D21/02; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S4/00; Y10S4/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
TRANSPORTABLE APPARATUS FOR THE AEROBIC DIGESTION OF NIGHT SOIL COMPRISING A TANK, A MIXING CHAMBER, A CONDITIONING CHAMBER AND A SETTLEMENT CHAMBER IN SAID TANK, A VENT CONNECTING SAID CONDITIONING CHAMBER TO ATMOSPHERE, AERATORS LOCATED IN THE MIXING AND CONDITIONING CHAMBERS, MEANS FOR TRANSFERRING THE LOWER PORTION OF THE MATERIAL IN THE SETTLEMENT CHAMBER TO THE CONDITIONING CHAMBER AND THE UPPER PORTION OF THE MATERIAL IN THE SETTLEMENT CHAMBER TO THE MIXING CHAMBER, MEANS FOR TRANSFERRING MATERIAL IN THE CONDITIONING CHAMBER TO THE MIXING CHAMBER AND AN INLET FOR THE DIRECT DISCHARGE OF NIGHT SOIL INTO THE MIXING CHAMBER.
Claim 2
Dependent Claim
99 words
TRANSPORTABLE APPARATUS FOR THE AEROBIC DIGESTION OF NIGHT SOIL COMPRISING A TANK, A MIXING CHAMBER, A CONDITIONING CHAMBER AND A SETTLEMENT CHAMBER IN SAID TANK, A VENT CONNECTING SAID CONDITIONING CHAMBER TO ATMOSPHERE, AERATORS LOCATED IN THE MIXING AND CONDITIONING CHAMBERS, MEANS FOR TRANSFERRING THE LOWER PORTION OF THE MATERIAL IN THE SETTLEMENT CHAMBER TO THE CONDITIONING CHAMBER AND THE UPPER PORTION OF THE MATERIAL IN THE SETTLEMENT CHAMBER TO THE MIXING CHAMBER, MEANS FOR TRANSFERRING MATERIAL IN THE CONDITIONING CHAMBER TO THE MIXING CHAMBER AND AN INLET FOR THE DIRECT DISCHARGE OF NIGHT SOIL INTO THE MIXING CHAMBER.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |