US3802020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile field burner
Assignee: Individual
•
Filing: 1972-12-27
•
Granted: 1974-04-09
•
Expires: 1992-12-27
Abstract
Abstract A mobile burner for sterilizing and decontaminating seed grass fields without thereby causing excessive air pollution. The mobile burner apparatus comprises a vehicular structure having a combustion chamber and means for collecting and conveying to the chamber the loose seed grass remaining on the ground after harvest. Impingement means are provided for directing some of the hot combustion gases from the chamber into the soil as the burner traverses the field, to burn the short grass and any remaining loose seed grass and destroy weed seed and vermin in preparation for planting of the next crop. The flue system of the combustion chamber is equipped with a group of cyclones for cleaning at least a major portion of the combustion gases before their emission into the atmosphere by separating the dirt, cinders and other particulate material from the gases and distributing the separated solids on the ground. A system for recirculating a portion of the gases through the combustion chamber is provided to promote efficiency of the system.
Inventors
- 👤 R Stone
- 👤 R Coakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:49
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/40; F23G7/00; F23G7/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
114 words
A vehicular mobile field burner for purifying and decontaminating the soil of an agricultural field by applying heat thereto as said burner traverses said field, said vehicular burner comprising: a. a Combustion chamber having an inlet port for receiving vegetable matter collected from said field and having an exhaust conduit for conducting combustion gases from said chamber; b. cleansing means communicating with said exhaust conduit for removing particulate matter from at least a portion of said combustion gases prior to their emission into the atmosphere; and c. impingement means communicating with said exhaust conduit for directing at least a portion of said combustion gases onto the soil as said vehicular burner traverses said field.
Claim 2
Dependent Claim
114 words
A vehicular mobile field burner for purifying and decontaminating the soil of an agricultural field by applying heat thereto as said burner traverses said field, said vehicular burner comprising: a. a Combustion chamber having an inlet port for receiving vegetable matter collected from said field and having an exhaust conduit for conducting combustion gases from said chamber; b. cleansing means communicating with said exhaust conduit for removing particulate matter from at least a portion of said combustion gases prior to their emission into the atmosphere; and c. impingement means communicating with said exhaust conduit for directing at least a portion of said combustion gases onto the soil as said vehicular burner traverses said field.
Claim 3
Dependent Claim
41 words
The vehicular burner of claim 1 wherein means are provided communicating with said inlet port of said combustion chamber for collecting vegetable matter from said field and conveying said vegetable matter to said inlet port as said burner traverses said field.
Claim 4
Dependent Claim
25 words
The vehicular burner of claim 1 wherein said impingement means includes adjustable means for regulating the flow of said combustion gases directed onto said soil.
Claim 5
Dependent Claim
24 words
The vehicular burner of claim 3 wherein a temperature sensor is provided adjacent said impingement means for measuring the temperature of said combustion gases.
Claim 6
Dependent Claim
40 words
The vehicular burner of claim 4 including control means coupled with said adjustable gas flow regulating means and with said temperature sensor for controlling said flow of combustion gases directed onto said soil in response to said combustion gas temperature.
Claim 7
Dependent Claim
48 words
The vehicular burner of claim 5 wherein said control means includes means for closing said regulating means so as to prevent the impingement of said combustion gases upon said soil whenever the temperature of said combustion gases as measured by said temperature sensor is below a predetermined temperature.
Claim 8
Dependent Claim
46 words
The vehicular burner of claim 3 wherein said impingement means comprises a group of downwardly facing ports and wherein said adjustable gas flow regulating means comprises an array of adjustable louvers in proximity with said ports for regulating the flow of combustion gases through said ports.
Claim 9
Dependent Claim
40 words
The vehicular burner of claim 1 wherein shroud means are provided extending from said vehicular burner downwardly into proximity with the soil for substantially shielding the area of impingement of said combustion gases on said soil from the surrounding atmosphere.
Claim 10
Dependent Claim
45 words
The vehicular burner of claim 1 wherein said combustion gas cleansing means communicates with said exhaust conduit at a location downstream, in the direction of flow of said combustion gases through said conduit, from the location where said impingement means communicates with said exhaust conduit.
Claim 11
Dependent Claim
49 words
The vehicular burner of claim 1 wherein said combustion gas cleansing means comprises cyclone means for separating said particulate matter from said combustion gases, said cyclone means having means adjacent its bottom portion for distributing said separated particulate matter downwardly onto the soil as said burner traverses said field.
Claim 12
Dependent Claim
35 words
The vehicular burner of claim 10 including shroud means extending downwardly from said burner into proximity with the soil for substantially shielding the area of distribution of said separated particulate matter from the surrounding atmosphere.
Claim 13
Dependent Claim
29 words
The vehicular burner of claim 1 wherein means are provided communicating with said exhaust conduit for recirculating at least a portion of said combustion gases through said combustion chamber.
Claim 14
Dependent Claim
61 words
The vehicular burner of claim 1 including suction means communicating with said exhaust conduit at a location downstream, in the direction of flow of said combustion gases through said conduit, from the location where said impingement means communicates with said exhaust conduit, so as to maintain a decreasing pressure gradient in said conduit in a downstream direction from said impingement means.
Claim 15
Dependent Claim
37 words
The vehicular burner of claim 1 wherein the walls of said combustion chamber are hollow so as to define a cooling plenum chamber therein, and wherein means are provided for forcing cooling air through said plenum chambEr.
Claim 16
Dependent Claim
36 words
The vehicular burner of claim 1 wherein said combustion chamber includes a plurality of ports in its walls and wherein means are provided for forcing air through said ports into said chamber to support combustion therein.
Claim 17
Dependent Claim
202 words
A mobile field burner for purifying and decontaminating the soil of an agricultural field by applying heat thereto, said burner comprising: a. a vehicular supporting structure; b. a combustion chamber mounted on said vehicular structure having a fuel inlet port and an exhaust conduit for conducting combustion gases from said chamber; c. means for collecting vegetable matter from said field as said vehicular structure traverses said field, including means for conveying said collected vegetable matter to said fuel inlet port of said combustion chamber; d. downwardly facing impingement means communicating with said exhaust conduit for directing at least a portion of said combustion gases from said exhaust conduit onto the ground beneath said mobile burner, said impingement means including adjustable means for regulating the flow of said gases directed onto the ground; e. combustion gas cleansing means communicating with said exhaust conduit at a location downstream from said impingement means for separating particulate matter from at least a portion of said combustion gases and distributing said particulate matter on the ground; and f. an exhaust port communicating with said exhaust conduit at a location downstream from said gas cleansing means for permitting said cleansed combustion gases to be emitted into the atmosphere.
Claim 18
Dependent Claim
202 words
A mobile field burner for purifying and decontaminating the soil of an agricultural field by applying heat thereto, said burner comprising: a. a vehicular supporting structure; b. a combustion chamber mounted on said vehicular structure having a fuel inlet port and an exhaust conduit for conducting combustion gases from said chamber; c. means for collecting vegetable matter from said field as said vehicular structure traverses said field, including means for conveying said collected vegetable matter to said fuel inlet port of said combustion chamber; d. downwardly facing impingement means communicating with said exhaust conduit for directing at least a portion of said combustion gases from said exhaust conduit onto the ground beneath said mobile burner, said impingement means including adjustable means for regulating the flow of said gases directed onto the ground; e. combustion gas cleansing means communicating with said exhaust conduit at a location downstream from said impingement means for separating particulate matter from at least a portion of said combustion gases and distributing said particulate matter on the ground; and f. an exhaust port communicating with said exhaust conduit at a location downstream from said gas cleansing means for permitting said cleansed combustion gases to be emitted into the atmosphere.
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |