US3713402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid waste incinerator and process
Assignee: Individual
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Filing: 1970-10-29
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Granted: 1973-01-30
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Expires: 1990-10-29
Abstract
Abstract An open pit incineration system for solid waste and refuse utilizes a high velocity air curtain to effect not only complete combustion of solid materials into gaseous products of combustion but to prevent the escape of products of incomplete combustion into the atmosphere. The residue or incombustible solid material remaining is removed from the pit. The invention further incorporates a waste disposal system and process to efficiently collect and transfer the waste material into the incineration pit.
Inventors
- 👤 M Ahrend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:41
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
An open pit incinerator for waste and refuse products comprising: a combination chamber formed of a substantially longitudinal U-shape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 2
Dependent Claim
117 words
An open pit incinerator for waste and refuse products comprising: a combination chamber formed of a substantially longitudinal U-shape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 3
Dependent Claim
117 words
An open pit incinerator for waste and refuse products comprising: a combination chamber formed of a substantially longitudinal Ushape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 4
Dependent Claim
117 words
An open pit incinerator for waste and refuse products comprising: a combination chamber formed of a substantially longitudinal Ushape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 5
Dependent Claim
51 words
An incinerator of claim 1 wherein said means to supply air to said port includes a blower or compressor supplying said air to a longitudinal plenum chamber, to which said port is attached, sufficient to create air velocity from said port within the range of 60 to 120 miles per hour.
Claim 6
Dependent Claim
25 words
An incinerator of claim 1 wherein said port is oriented into said pit at an angle of 60* to said vertical leg of said chamber.
Claim 7
Dependent Claim
188 words
A solid waste and refuse material disposal system comprising: a first stationary primary collection hopper to receive said waste and refuse; first means to convey portions of said waste and refuse to a means for shredding or breaking said material into smaller substantially equal size particles; a combustion chamber; second means to convey said particles from said shredder to said combustion chamber; third means contiguous to said second means to remove reusable waste and refuse materials prior to said combustion chamber; said combustion chamber formed of a substantially longitudinal U-shape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 8
Dependent Claim
188 words
A solid waste and refuse material disposal system comprising: a first stationary primary collection hopper to receive said waste and refuse; first means to convey portions of said waste and refuse to a means for shredding or breaking said material into smaller substantially equal size particles; a combustion chamber; second means to convey said particles from said shredder to said combustion chamber; third means contiguous to said second means to remove reusable waste and refuse materials prior to said combustion chamber; said combustion chamber formed of a substantially longitudinal U-shape, closed at the longitudinal ends and open at the top thereof, said chamber formed of heat resistant materials and including means at the bottom thereof to remove residual products incapable of complete combustion; a longitudinal port extending substantially along the longitudinal length of one vertical leg of said chamber and oriented downwardly across and toward the opposite vertical leg of said chamber to provide a uninterrupted curtain of said air substantially across thereof from said end to end; and means to supply sufficient air to said port whereby the air ensuing therefrom traverses at a substantially high velocity.
Claim 9
Dependent Claim
16 words
A system of claim 4 wherein said third means including: a magnetic separator for ferrous particles.
Claim 10
Dependent Claim
11 words
A system of claim 5 including means to separate glass particles.
Claim 11
Dependent Claim
55 words
A system of claim 4 wherein said means to supply air to said port includes a blower or compressor supplying said air to a longitudinal plenum chamber, to whiCh said port is attached, sufficient to create air velocity from said port and across said pit within the range of 60 to 120 miles per hour.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |