Patent US3557722A successfully refreshed from Google Patents.
US3557722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerating method and apparatus
Assignee: ERMAN CORP
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Filing: 1968-01-03
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Granted: 1971-01-26
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Expires: 1988-01-03
Abstract
Abstract Method and apparatus are provided for incinerating combustible materials while minimizing delivery of contaminants to the atmosphere. In carrying out the method, air is preheated and introduced into the combustion chamber to feed the fire. Preferably the air is preheated to at least about 300* F., and the combustion products are heated to at least about 600* F., or most preferably to at least about 1000* F. Water droplets are preferably introduced into the combustion chamber during incineration, and the products of combustion may be passed through a moving stream of water. The apparatus includes an elongated incineration housing, means for introducing preheated air, and combustion products removal means. Preferably, the airpreheating means also forms means for recirculating air past the entrance and exit openings in the housing. Means are preferably provided for introducing water droplets into an upper portion of the housing and for burning and scrubbing the combustion products.
Inventors
- 👤 Walter Erman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/003; F23G7/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
An incinerator comprising: an elongated incineration housing having oppositely disposed entrance and exit openings; means for recirculating air past said openings; collecting means located in a upper portion of said housing for collecting combustion products from materials burned within said housing; combustion products removal means including a withdrawal means for withdrawing products of combustion from said housing; afterburning means in said combustion products removal means for burning products of combustion; water spray means in an upper portion of said housing; and cooling means for passing water over the exterior of said housing and said collecting means.
Claim 2
Dependent Claim
96 words
An incinerator comprising: an elongated incineration housing having oppositely disposed entrance and exit openings; means for recirculating air past said openings; collecting means located in a upper portion of said housing for collecting combustion products from materials burned within said housing; combustion products removal means including a withdrawal means for withdrawing products of combustion from said housing; afterburning means in said combustion products removal means for burning products of combustion; water spray means in an upper portion of said housing; and cooling means for passing water over the exterior of said housing and said collecting means.
Claim 3
Dependent Claim
22 words
The incinerator of claim 1 wherein said housing has generally upwardly and inwardly sloped sidewalls and is suspended from external frame members.
Claim 4
Dependent Claim
27 words
The incinerator of claim 2 wherein said cooling means includes water retention means for retaining a portion of said water over an upper portion of said housing.
Claim 5
Dependent Claim
86 words
An incinerator comprising: an elongated incineration housing having oppositely disposed entrance and exit openings; means for recirculating air past said openings; collecting means located in an upper portion of said housing for collecting combustion products from materials burned within said housing; combustion products removal means including a withdrawal means for withdrawing products of combustion from said housing; afterburner means in said combustion products removal means for burning products of combustion; and cooling means for passing water over the exterior of said housing and said collection means.
Claim 6
Dependent Claim
86 words
An incinerator comprising: an elongated incineration housing having oppositely disposed entrance and exit openings; means for recirculating air past said openings; collecting means located in an upper portion of said housing for collecting combustion products from materials burned within said housing; combustion products removal means including a withdrawal means for withdrawing products of combustion from said housing; afterburner means in said combustion products removal means for burning products of combustion; and cooling means for passing water over the exterior of said housing and said collection means.
Claim 7
Dependent Claim
27 words
The incinerator of claim 4 wherein said cooling means includes water retention means for retaining a portion of said water over an upper portion of said housing.
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |