US3190725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment of night soil
Assignee: Wright Anderson (South Africa) Ltd
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Filing: 1963-04-15
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Granted: 1965-06-22
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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
2026-11-05 22:55
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; A; A47; A47K; A47K11/00; A47K11/02; A47K11/03; A47K11/035; E; E03; E03D; E03D5/00; E03D5/016; E03F; E03F5/00; E03F5/18; Y; Y02; Y02A; Y02A50/00; Y02A50/30; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
TRANSPORTABLE APPARATUS FOR THE AEROBIC DIGESTION OF NIGHT SOIL COMPRISING A MIXING CHAMBER, AN INLET FOR DISCHARGE OF NIGHT SOIL INTO THE MIXING CHAMBER, AN AERATION CHAMBER, A VENT CONNECTING THE AERATION CHAMBER TO ATMOSPHERE, AN AERATOR IN THE AERATION CHAMBER, AND A SETTLEMENT CHAMBER OF RETENTION OF A BODY OF ACTIVATED SLUDGE AND SUPERNATANT ELFFLUENT, MEANS FOR TRANSFERRING ACTIVATED SLUDGE FROM THE SETTLEMENT TO THE AERATION CHAMBER, MEANS FOR TRANSFERRING THE CONTENTS OF THE MIXING CHAMBER TO THE AERATION CHAMBER, THE CONTENTS OF THE AERATION CHAMBER TO THE SETTLEMENT CHAMBER AND RETURNING SUPERNATANT EFFLUENT FROM THE SETTLEMENT CHAMBER TO THE MIXING CHAMBER.
Claim 2
Dependent Claim
103 words
TRANSPORTABLE APPARATUS FOR THE AEROBIC DIGESTION OF NIGHT SOIL COMPRISING A MIXING CHAMBER, AN INLET FOR DISCHARGE OF NIGHT SOIL INTO THE MIXING CHAMBER, AN AERATION CHAMBER, A VENT CONNECTING THE AERATION CHAMBER TO ATMOSPHERE, AN AERATOR IN THE AERATION CHAMBER, AND A SETTLEMENT CHAMBER OF RETENTION OF A BODY OF ACTIVATED SLUDGE AND SUPERNATANT ELFFLUENT, MEANS FOR TRANSFERRING ACTIVATED SLUDGE FROM THE SETTLEMENT TO THE AERATION CHAMBER, MEANS FOR TRANSFERRING THE CONTENTS OF THE MIXING CHAMBER TO THE AERATION CHAMBER, THE CONTENTS OF THE AERATION CHAMBER TO THE SETTLEMENT CHAMBER AND RETURNING SUPERNATANT EFFLUENT FROM THE SETTLEMENT CHAMBER TO 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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |