US3909364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste disposal method and apparatus
Assignee: Individual
•
Filing: 1974-04-24
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Granted: 1975-09-30
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Expires: 1994-04-24
Abstract
Abstract The structures herein set forth comprise a method and apparatus for the disposal of waste. Municipal wastes such as garbage, trash and the like are transmitted to separator and shredder devices. The carbonizable portions thereof which may be agricultural, forest or animal, are transmitted, along with sanitary sludge cake, into a drier. After a partial drying operation the material is mixed with coal and coal char, and optionally with oil char and the like, and transmitted to a devolatilizer and heat generator assembly wherein the carbonizable portions of the waste are combined with coal and coal char, and optionally with oil char, whereby to provide a combined char suitable for fuel. The by-products provided by the process are recovered.
Inventors
- 👤 Alamjit D Singh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:09
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/04; C10B49/00; C10B49/16; C10B49/20; C10B49/22; C10B53/00; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
64 words
THE THE CLASS CONSISTING OF GARBAGE AND SANITARY SLUDGE CAKE WHICH COMPRISES MIXING THE WASTE WITH COAL WITHIN A CARBONIZING CHAMBER, AND SUBJECTING THE MIX TO THE ACTION OF HEAT WHILE IN SAID CHAMBER BY MIXING HOT COAL CHAR TAKEN FROM A SEPARATE COMBUSTION SOURCE THEREWITH WHEREBY TO PROVIDE A CARBONACEOUS CHAR, THE INDIVIDUAL PARTICLES OF WHICH COMPRISE COAL CHR AND THE CARBONIZED WASTE.
Claim 2
Dependent Claim
64 words
THE THE CLASS CONSISTING OF GARBAGE AND SANITARY SLUDGE CAKE WHICH COMPRISES MIXING THE WASTE WITH COAL WITHIN A CARBONIZING CHAMBER, AND SUBJECTING THE MIX TO THE ACTION OF HEAT WHILE IN SAID CHAMBER BY MIXING HOT COAL CHAR TAKEN FROM A SEPARATE COMBUSTION SOURCE THEREWITH WHEREBY TO PROVIDE A CARBONACEOUS CHAR, THE INDIVIDUAL PARTICLES OF WHICH COMPRISE COAL CHR AND THE CARBONIZED WASTE.
Claim 3
Dependent Claim
18 words
The method of treating carbonizable waste as defined in claim 1 wherein oil is added to the system.
Claim 4
Dependent Claim
24 words
The method of treating carbonizable waste as defined in claim 1 wherein the carbonizable waste and the coal are in granular form when mixed.
Claim 5
Dependent Claim
23 words
The method of treating carbonizable waste as defined in claim 1 wherein volatile by-products are extracted from the mix during the heating operation.
Claim 6
Dependent Claim
23 words
The method of treating carbonizable waste as defined in claim 2 wherein volatile by-products are extracted from the mix during the heating operation.
Claim 7
Dependent Claim
24 words
The method of treating carbonizable waste as defined in claim 1 wherein the heat is supplied by a partial burning of the carbonaceous char.
Claim 8
Dependent Claim
25 words
The method of treating carbonizable waste as defined in claim 1 wherein the waste is subjected to a preliminary treatment which comprises a shredding operation.
Claim 9
Dependent Claim
16 words
The method of treating carbonizable waste as defined in claim 1 wherein the waste comprises garbage.
Claim 10
Dependent Claim
18 words
The method of treating carbonizable waste as defined in claim 1 wherein the waste comprises sanitary sludge cake.
Claim 11
Dependent Claim
106 words
Apparatus for treating carbonizable waste selected from the class consisting of garbage and sanitary sludge cake comprising a devolatilizer, means forming a source of comminuted waste, means for transmitting comminuted waste from said source to the devolatilizer, means forming a source of granular coal, means for transmitting granular coal from said source to the devolatilizer, means including a combustion chamber providing a source of hot coal char, and means for subjecting the coal and the waste to the action of hot coal char from said combustion chamber within the devolatilizer to form a char the individual particles of which comprise combined coal char and carbonized waste.
Claim 12
Dependent Claim
106 words
Apparatus for treating carbonizable waste selected from the class consisting of garbage and sanitary sludge cake comprising a devolatilizer, means forming a source of comminuted waste, means for transmitting comminuted waste from said source to the devolatilizer, means forming a source of granular coal, means for transmitting granular coal from said source to the devolatilizer, means including a combustion chamber providing a source of hot coal char, and means for subjecting the coal and the waste to the action of hot coal char from said combustion chamber within the devolatilizer to form a char the individual particles of which comprise combined coal char and carbonized waste.
Claim 13
Dependent Claim
20 words
Apparatus for treating carbonizable waste as defined in claim 10 wherein means is provided for transmitting oil to the devolatilizer.
Claim 14
Dependent Claim
45 words
Apparatus for treating carbonizable waste as defined in claim 10 wherein the means for subjecting the coal and waste to the action of heat comprises a heat generator interconnected with the devolatilizer and within which the coal char and waste material char are partially burned.
Claim 15
Dependent Claim
25 words
Apparatus for treating carbonizable waste as defined in claim 10 wherein means is provided for extracting volatile materials from the devolatilizer during the heating action.
Claim 16
Dependent Claim
29 words
Apparatus for treating carbonizable waste as defined in claim 10 wherein a drier is provided within which the waste material is partially dried prior to transmission to the devolatilizer.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |