Patent US4913844A successfully refreshed from Google Patents.
Patent US3655046A successfully refreshed from Google Patents.
US3655046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Municipal waste disposal
Assignee: Fermbionics Inc
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Filing: 1970-03-11
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Granted: 1972-04-11
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Expires: 1990-03-11
Abstract
Abstract A system for disposing of municipal waste including garbage and sewage which converts the garbage portion into a matrix filter which is used to separate the liquids and solids in the sewage. The liquids are purified in a normal manner, for example by aeration, and the solids are converted into a food material suitable for livestock consumption.
Inventors
- 👤 Harry B Trussell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:37
CPC Classifications
C; C02; C02F; C02F11/00; C02F11/12; C02F11/121; C02F11/123; A; A23; A23K; A23K10/00; A23K10/20; A23K10/26; C05; C05F; C05F17/00; C05F17/40; C05F7/00; C05F9/00; C05F9/04; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/92
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
20 words
A process as in claim 1 wherein the sewage is filtered by pouring it onto the uniform layer of garbage.
Claim 2
Dependent Claim
15 words
A process as in claim 2 comprising the step of pasteurizing the mixture after filtration.
Claim 3
Dependent Claim
50 words
A process as in claim 3 comprising the steps of analyzing the mixture to determine the presence of nutrients, vitamins and minerals, and buffering the mixture by adding quantities of nutrients, vitamins, and minerals to bring the concentration of nutrients, vitamins, and minerals in the mixture to predetermined end levels.
Claim 4
Dependent Claim
32 words
A process as in claim 4 comprising the steps of grinding the garbage to moderately-sized pieces and removing rocks, metals, glass and plastic from the garbage prior to forming the filter matrix.
Claim 5
Dependent Claim
37 words
A process as in claim 5 comprising the steps of separating the liquids from the solids in the mixture after digestion, and recycling the liquids obtained from separation to the digester for further and more complete digestion.
Claim 6
Dependent Claim
50 words
A process as in claim 6 wherein the uniform layer of garbage on the conveyor belt passes around a rotating drum having a screen-type exterior and wherein the sewage is admitted to the interior of said drum from the collection point and is passed through the drum to the matrix.
Claim 7
Dependent Claim
19 words
A process as in claim 7 comprising the step of pre-heating the mixture in a heat exchanger before pasteurization.
Claim 8
Dependent Claim
16 words
A process as in claim 8 comprising the step of purifying the liquid sewage after filtration.
Claim 9
Dependent Claim
29 words
A process as in claim 8 wherein the mixture is further heated during pasteurization and wherein said heated pasteurized mixture is used to preheat the mixture prior to pasteurization.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |