US3913499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refuse burner apparatus
Assignee: Koppers Inc
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Filing: 1973-05-30
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Granted: 1975-10-21
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Expires: 1993-05-30
Abstract
Abstract A subterranean burning chamber for burning refuse, which is covered by a frusto-conical metal shell, comprises a steel structure that is refractory lined and has hollow walls that are fluid-cooled. Means is provided for maintaining the chamber in place when bouyant forces are present.
Inventors
- 👤 Ralph E Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:24
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/34; F23M; F23M5/00; F23M5/08; F23M5/085
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
In a refuse burner apparatus including a hollow wall structure of inner and outer spaced-apart plates and a layer of insulating material disposed on said inner wall plate, with a layer of refractory material covering the insulating layer; with a cap plate covering the top of the wall structure; and with a bottom plate on which the wall structure rests, the combination with said wall structure of: a. a first conduit communicating with said hollow wall structure for introducing a cooling fluid thereinto to cool said wall structure; b. means for introducing a cooling fluid into said first conduit; c. means for flowing said cooling fluid out of said wall structure; d. a second conduit carrying said cooling fluid; and e. a third conduit communicating with said second conduit and having a plurality of nozzles that direct fluid flowing in said third conduit into said burner apparatus.
Claim 2
Dependent Claim
147 words
In a refuse burner apparatus including a hollow wall structure of inner and outer spaced-apart plates and a layer of insulating material disposed on said inner wall plate, with a layer of refractory material covering the insulating layer; with a cap plate covering the top of the wall structure; and with a bottom plate on which the wall structure rests, the combination with said wall structure of: a. a first conduit communicating with said hollow wall structure for introducing a cooling fluid thereinto to cool said wall structure; b. means for introducing a cooling fluid into said first conduit; c. means for flowing said cooling fluid out of said wall structure; d. a second conduit carrying said cooling fluid; and e. a third conduit communicating with said second conduit and having a plurality of nozzles that direct fluid flowing in said third conduit into said burner apparatus.
Claim 3
Dependent Claim
18 words
The invention of claim 1 including: a. damper means for regulating the flow of fluid in said conduits.
Claim 4
Dependent Claim
77 words
In a refuse burner apparatus including a hollow wall structure formed by spaced-apart membranes with a cap plate covering the top of said wall structure and a bottom plate on which the wall structure rests, the combination with said wall structure of: a. means for carrying cooling fluid into one portion of said hollow wall structure; and b. conduit means for carrying said cooling fluid from said one portion to another portion of said hollow wall structure.
Claim 5
Dependent Claim
77 words
In a refuse burner apparatus including a hollow wall structure formed by spaced-apart membranes with a cap plate covering the top of said wall structure and a bottom plate on which the wall structure rests, the combination with said wall structure of: a. means for carrying cooling fluid into one portion of said hollow wall structure; and b. conduit means for carrying said cooling fluid from said one portion to another portion of said hollow wall structure.
Claim 6
Dependent Claim
27 words
The invention of claim 3 including: a. means surrounding and coacting with a portion of said wall structure for resisting upward forces acting on said wall structure.
Claim 7
Dependent Claim
54 words
The invention of claim 3 including: a. a first conduit carrying a cooling fluid into the space between said membranes; b. a second conduit having a plurality of nozzles that direct fluid flowing therein into said burner apparatus; and c. damper means for regulating the flow of fluid in said first and second conduits.
Claim 8
Dependent Claim
44 words
The invention of claim 3 including: a. a baffle in said another wall structure portion that is spaced apart from one membrane of said hollow wall structure; and b. adjustable vent openings in said hollow wall structure whereby said cooling fluid may escape therefrom.
Claim 9
Dependent Claim
62 words
In a refuse burner apparatus, the improvement comprising: a. a hollow wall structure comprised of inner and outer membranes with means therebetween for maintaining said membranes in spaced-apart relation; b. means for introducing a cooling fluid into one portion of said hollow wall structure; and c. means for conveying said fluid from said one wall structure portion to another wall structure portion.
Claim 10
Dependent Claim
62 words
In a refuse burner apparatus, the improvement comprising: a. a hollow wall structure comprised of inner and outer membranes with means therebetween for maintaining said membranes in spaced-apart relation; b. means for introducing a cooling fluid into one portion of said hollow wall structure; and c. means for conveying said fluid from said one wall structure portion to another wall structure portion.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |