Patent US4089277A successfully refreshed from Google Patents.
US4089277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid waste disposal
Assignee: Individual
•
Filing: 1976-10-29
•
Granted: 1978-05-16
•
Expires: 1996-10-29
Abstract
Abstract An entirely dry, solid waste disposal system is provided which incinerates waste in a manner to minimize pollution and to utilize the heat energy which is a by-product of the incineration. The waste material is shredded and then dried by mixing it with heated ambient air in an elongated dryer. A helix propels the waste through the dryer and into a combustion chamber together with the hot ambient air which was employed to dry the waste material. The hot gases resulting from incinerating the wastes are directed to a boiler wherein steam is generated. The steam thus produced is used to generate electricity and additionally may be utilized as a source of heat for heating or drying. The hot gases from the combustion chamber and the boiler are fed to the dryer for waste drying purposes. Exhaust gases from the dryer are fed to a scrubber to remove any remaining pollutants prior to being exhausted into the atmosphere.
Inventors
- 👤 Franklin O. Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/44; F23G5/46; F23G5/02; F23J; F23J15/00; F23G2201/00; F23G2201/80; F23G2206/00; F23G2206/10; F23G2206/20; F23G2206/203; Y; Y02; Y02E; Y02E20/00; Y02E20/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
241 words
A solid waste disposal apparatus for incinerating solid wastes, which comprises: (A) a dryer including a drying chamber for drying the solid waste, a conveyor positioned within said drying chamber to transport the wastes through the dryer, and means to pass heated air through the dryer said means including an inner chamber within which is positioned the conveyor and an outer shell at least partically surrounding the inner chamber; (B) an incinerator for burning the wastes including means to receive the solid wastes from the dryer, a combustion chamber for incinerating the wastes and wherein hot flue gases are generated, and flue gas outlet means for leading the hot flue gases from the incinerator; (C) a boiler receiving at least some of the flue gases from the incinerator, said boiler including a heat exchange means to utilize the heat of the hot flue gases, the heat exchange means exhausting the used hot flue gases from the boiler; (D) first conduit means adapted to direct hot flue gases from the incinerator or used flue gases from the boiler to the dryer for waste drying purposes, said conduit means being adapted to direct the hot flue gases through the said outer shell; (E) a heater surrounding at least a part of the first conduit means and adapted to heat ambient air by utilizing heat from the flue gases, and (F) second conduit means adapted to direct the heated ambient air to the dryer.
Claim 2
Dependent Claim
241 words
A solid waste disposal apparatus for incinerating solid wastes, which comprises: (A) a dryer including a drying chamber for drying the solid waste, a conveyor positioned within said drying chamber to transport the wastes through the dryer, and means to pass heated air through the dryer said means including an inner chamber within which is positioned the conveyor and an outer shell at least partically surrounding the inner chamber; (B) an incinerator for burning the wastes including means to receive the solid wastes from the dryer, a combustion chamber for incinerating the wastes and wherein hot flue gases are generated, and flue gas outlet means for leading the hot flue gases from the incinerator; (C) a boiler receiving at least some of the flue gases from the incinerator, said boiler including a heat exchange means to utilize the heat of the hot flue gases, the heat exchange means exhausting the used hot flue gases from the boiler; (D) first conduit means adapted to direct hot flue gases from the incinerator or used flue gases from the boiler to the dryer for waste drying purposes, said conduit means being adapted to direct the hot flue gases through the said outer shell; (E) a heater surrounding at least a part of the first conduit means and adapted to heat ambient air by utilizing heat from the flue gases, and (F) second conduit means adapted to direct the heated ambient air to the dryer.
Claim 3
Dependent Claim
19 words
The solid waste disposal apparatus of claim 1 wherein portions of the conveyor within the drying chamber are perforate.
Claim 4
Dependent Claim
32 words
The solid waste disposal apparatus of claim 1 wherein the conveyor within the drying chamber includes an auger blade, the said auger blade including means to pass heated gases through the blade.
Claim 5
Dependent Claim
22 words
The solid waste disposal apparatus of claim 3 in which the means to pass include at least one opening through the blade.
Claim 6
Dependent Claim
31 words
The solid waste disposal apparatus according to claim 3 wherein the auger blade comprises a screen material and wherein the heated ambient air is directed through openings in the screen material.
Claim 7
Dependent Claim
26 words
The solid waste disposal apparatus of claim 3 wherein the second conduit means is adapted to direct the heated ambient air to the said inner chamber.
Claim 8
Dependent Claim
26 words
The solid waste disposal apparatus of claim 6 wherein the heated ambient air is directed through the said means to pass heated gases through the blade.
References Cited (Backward Citations)
US2213668A
Cited
US2730971A
Cited
US3027854A
Cited
US3774555A
Cited
US3942455A
Cited
US4009667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |