US4608175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral waste disposal system
Assignee: NEEDFUL PROVISION Inc
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Filing: 1984-07-06
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Granted: 1986-08-26
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Expires: 2004-07-06
Abstract
Abstract This invention is a sanitary disposal system for human waste and organic garbage by aerobic composting combined with solar evaporative distillation for greywater. The aerobic composting reduces waste volume by ninety percent leaving water, carbon dioxide and a harmless but fertile ash by-product. Except for urine, the system essentially operates dry. No chemicals, septic system, or sewage treatment plant is required. There is no odor and no polluting discharged during operation. A nonsoiling toilet seat is provided so a dry toilet bowl may be used without the usual problems of cleaning. Insects are prevented from entering or leaving the system which is constantly aerated to assure that the composting process does not convert to anaerobic. The greywater system further enhances pollution control. This includes solar evaporative distillation to separate out solids which can be disposed of in a sanitary dump while the reclaimed water can be used for non-household purposes.
Inventors
- 👤 David A. Nuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:44
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y02W; Y02W10/00; Y02W10/30; Y02W10/37; Y10; Y10S; Y10S203/00; Y10S203/05
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
A system for disposal of household liquid and solid waste comprising: an aerobic biological decomposing tank for receiving and treating human and organic waste, said decomposing tank having waste inlet means for depositing said human and organic waste, aeration means including air inlet means, air exhaust means and blower means for causing a positive air flow through said decomposing tank, and access means for removal of ash resulting from the decomposition of said human and organic waste; and a solar evaporative distillation and collecting system for receiving and distilling waste water, said distillation system being independent of said decomposing tank and having at least one reservoir for receiving said waste water, a trough-like condensing surface having an extending lower apex over a substantial portion of said reservoir, and a water collection trough disposed below said apex of said condensing surface whereby a highly efficient, low cost system for disposal of household solid and liquid waste is provided.
Claim 2
Independent Claim
157 words
A system for disposal of household liquid and solid waste comprising: an aerobic biological decomposing tank for receiving and treating human and organic waste, said decomposing tank having waste inlet means for depositing said human and organic waste, aeration means including air inlet means, air exhaust means and blower means for causing a positive air flow through said decomposing tank, and access means for removal of ash resulting from the decomposition of said human and organic waste; and a solar evaporative distillation and collecting system for receiving and distilling waste water, said distillation system being independent of said decomposing tank and having at least one reservoir for receiving said waste water, a trough-like condensing surface having an extending lower apex over a substantial portion of said reservoir, and a water collection trough disposed below said apex of said condensing surface whereby a highly efficient, low cost system for disposal of household solid and liquid waste is provided.
Claim 3
Dependent Claim
25 words
The disposal system of claim 1 wherein said air inlet means includes means for heating air as such air passes through said air inlet means.
Claim 4
Dependent Claim
17 words
The disposal system of claim 2 wherein said means for heating air is a solar air warmer.
Claim 5
Dependent Claim
33 words
The disposal system of claim 3 wherein said solar air warmer includes a secondary heating means for heating air when the internal temperature of said solar air warmer drops below a predetermined temperature.
Claim 6
Dependent Claim
16 words
The disposal system of claim 4 wherein said secondary heating means is an electrical resistance heater.
Claim 7
Dependent Claim
27 words
The decomposing system of claim 1 wherein the means for depositing the solid human waste in the aerobic biological decomposing system is a toilet chair type means.
Claim 8
Dependent Claim
18 words
The decomposing system of claim 6 wherein said toilet chair means includes an associated bulking material depositing means.
Claim 9
Dependent Claim
15 words
The decomposing system of claim 7 wherein the bulking material is of the sawdust type.
Claim 10
Dependent Claim
25 words
The disposal system of claim 8 wherein said toilet chair means includes a driven air flow means to reduce the likelihood of odor escaping therefrom.
Claim 11
Dependent Claim
17 words
The disposal system of claim 7 including a means for premeasuring the amount of bulking material used.
Claim 12
Dependent Claim
29 words
The disposal system of claim 1 wherein said aeration means further includes means for preventing build-up of internal pressure within said decomposing tank whereby more efficient decomposing is achieved.
Claim 13
Dependent Claim
36 words
The disposal system of claim 11 wherein said means for preventing pressure build-up includes self-adjusting inlet and exhaust openings which change direction with the wind so as to always be disposed away from the prevailing winds.
Claim 14
Dependent Claim
27 words
The disposal system of claim 1 wherein said distillation and collection system includes two reservoirs for alternately receiving waste water while the other reservoir is being serviced
Claim 15
Dependent Claim
20 words
The waste disposal system of claim 13 wherein a separate condensing surface and collecting trough is provided for each reservoir.
Claim 16
Dependent Claim
26 words
The decomposing system of claim 1 wherein the means for depositing the organic waste in the aerobic biological decomposing system is a garbage chute type means.
Claim 17
Dependent Claim
25 words
The decomposing system of claim 11 wherein the means for disposing the liquid waste in the evaporative distillation system is a plumbing fixture type means.
Claim 18
Dependent Claim
53 words
The disposal system of claim 1 wherein said blower means includes a first fan-type means disposed within said air inlet means for pushing air into said decomposing tank and a second fan-type means disposed within said air exhaust means for pulling air from said decomposing tank, whereby a push-pull ventilation system is provided.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |