US3862609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator ash removal apparatus
Assignee: General Electric Co
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Filing: 1974-03-20
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Granted: 1975-01-28
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Expires: 1994-03-20
Abstract
Abstract A valve and duct means are provided to extract ash-laden air from the combustion chamber of an incinerator and direct it to fly ash separators and a finer filter in order that small particles of ash may be separated from the air before the air is exhausted to atmosphere. An alternate path is provided to remove ash remaining in the combustion chamber after an incineration cycle is completed. Ash-laden air from the combustion chamber is directed to a cyclone separator to remove larger particles of ash from the air. The air is then sent through the fly ash separators and the finer filter in order to remove any remaining smaller particles of ash. The air is then returned to the combustion chamber where particles of ash remaining therein are stirred up by the returning air. Electrical circuitry is provided so that operation of the ash removal apparatus is substantially automatic. A protective circuit prevents operation of the ashremoval apparatus if the temperature in the combustion chamber is above a predetermined level.
Inventors
- 👤 Christian A Eff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:52
CPC Classifications
F; F23; F23J; F23J3/00; F23J3/06; F23J15/00; F23J15/02; F23J15/022; F23J15/027
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
137 words
Ash removal apparatus for an incinerator including a combustion chamber comprising: a. a blower for providing air flow for the incinerator; b. first means for selectively directing air from the combustion chamber to said blower through a first path during ash removal operation and through a second path during incineration; c. said first path directing air from said combustion chamber through a first separating means for removing larger ash particles and then through a second separating means for removing smaller ash particles; d. said second path bypassing said first separating means and directing air from said combustion chamber directly through said second separating means; and e. second means for selectively directing air discharged from said blower through a third path to said combustion chamber during ash removal operation and through a fourth path to atmosphere during incineration.
Claim 2
Dependent Claim
137 words
Ash removal apparatus for an incinerator including a combustion chamber comprising: a. a blower for providing air flow for the incinerator; b. first means for selectively directing air from the combustion chamber to said blower through a first path during ash removal operation and through a second path during incineration; c. said first path directing air from said combustion chamber through a first separating means for removing larger ash particles and then through a second separating means for removing smaller ash particles; d. said second path bypassing said first separating means and directing air from said combustion chamber directly through said second separating means; and e. second means for selectively directing air discharged from said blower through a third path to said combustion chamber during ash removal operation and through a fourth path to atmosphere during incineration.
Claim 3
Dependent Claim
72 words
The ash removal apparatus recited in claim 1 wherein: a. said first means includes a valve positioned adjacent said combustion chamber and movable between a first position permitting air flow through said first path and a second position blocking air flow through said first path; and b. said first means further includes a baffle movable simultaneously with said valve for blocking said second path when said valve is in said first position.
Claim 4
Dependent Claim
67 words
The ash removal apparatus recited in claim 1 wherein: a. said second means includes a first duct connecting said blower to atmosphere; b. a second duct connecting said first duct to said combustion chamber; and c. a baffle positioned at the junction of said first and second ducts for selectively directing air From said first duct to atmosphere or through said second duct to said combustion chamber.
Claim 5
Dependent Claim
43 words
The ash removal apparatus recited in claim 1 wherein said second separating means includes a plurality of serially connected separators suitable for removing fly ash and a third separator connecting between said plurality of separators and said blower for removing finer ash particles.
Claim 6
Dependent Claim
46 words
The ash removal apparatus recited in claim 4 and further including a duct connecting said plurality of said separators and said third separator and means for introducing air from the atmosphere through said duct to maintain the temperature in said third separator below a predetermined level.
Claim 7
Dependent Claim
68 words
The ash removal apparatus of claim 2 wherein said first means further includes a valve and electrical circuitry means associated therewith for simultaneously diverting ash-laden air to said first separating means and energizing said exhaust blower, said electrical circuitry means responsive to the temperature within said combustion chamber so that power to said exhaust blower is interrupted if the temperature within said combustion chamber exceeds a predetermined value.
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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |