US3899984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device generating and directing a flow of combustion supporting gaseous media
Assignee: Finn Corp
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Filing: 1974-05-20
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Granted: 1975-08-19
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Expires: 1994-05-20
Abstract
Abstract The device of the present invention comprises an elongate, substantially cylindrical housing having an open end and a closed end, the housing including a pair of circumferentially spaced discharge means radially projecting therefrom and extending substantially the full length thereof. Means in communication with the open end of the housing introduces a flow of gaseous media into the interior thereof at a greater than atmospheric pressure, and generates a flow of gaseous media from said housing in a predetermined, controlled direction through each of said pair of discharge means.
Inventors
- 👤 Richard E Keyes
- 👤 Neil Justice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
148 words
A device for generating and directing the discharge of two individual streams of combustion-supporting gaseous media into an open top combustion pit, comprising: an elongate, substantially cylindrical housing having an open end and a closed end; a pair of circumferentially spaced, elongate discharge nozzles projecting radially therefrom and directed toward the combustion pit at one side thereof; and means in communication with the open end of said housing for continuously introducing gaseous media into the interior thereof at pressure greater than atmospheric and for directing a first stream of gaseous media through one of said nozzles across the open top of the pit from one side thereof and thence downwardly along the other side of the pit, and for directing a second stream of gaseous media through the other of said nozzles adjacent said one side of the pit and downwardly along said one side of the pit.
Claim 2
Independent Claim
148 words
A device for generating and directing the discharge of two individual streams of combustion-supporting gaseous media into an open top combustion pit, comprising: an elongate, substantially cylindrical housing having an open end and a closed end; a pair of circumferentially spaced, elongate discharge nozzles projecting radially therefrom and directed toward the combustion pit at one side thereof; and means in communication with the open end of said housing for continuously introducing gaseous media into the interior thereof at pressure greater than atmospheric and for directing a first stream of gaseous media through one of said nozzles across the open top of the pit from one side thereof and thence downwardly along the other side of the pit, and for directing a second stream of gaseous media through the other of said nozzles adjacent said one side of the pit and downwardly along said one side of the pit.
Claim 3
Dependent Claim
34 words
A device as called for in claim 1, wherein the Nozzles are so constructed and arranged that the individual streams of gaseous media discharged therefrom diverge at an angle of from 40* to 60*.
Claim 4
Dependent Claim
89 words
A device as called for in claim 1, wherein the length of one nozzle is such as to extend at least to the upper edge of the side wall of an elongate open pit along which the housing is disposed for discharging a first stream of gaseous media into said pit adjacent the aforesaid side wall, and wherein the other nozzle is disposed above and relative to the first mentioned nozzle for discharging a second stream of gaseous media across the pit and against the other side wall thereof.
Claim 5
Dependent Claim
41 words
A device as called for in claim 3, wherein is included means for effecting discharge of from 15% to 25% of the gaseous media in the first stream and from 75 to 85 percent of said media in the second stream.
Claim 6
Dependent Claim
33 words
A device as called for in claim 1, wherein the means for introducing gaseous media into the housing is adapted to maintain a static pressure therein of from 8 inches to 12 inches.
Claim 7
Dependent Claim
40 words
A device as called for in claim 1, wherein the means for introducing gaseous media into the housing is adapted to sustain a discharge rate of 1,000 c.f.m. of said media through said nozzles per foot of length of housing.
Claim 8
Dependent Claim
24 words
A device as called for in claim 1, wherein said housing and said means for introducing gaseous media thereinto comprise a unitary, portable unit.
Claim 9
Dependent Claim
32 words
A device as called for in claim 7, wherein the means for introducing gaseous media into the interior of the housing and that end of the housing adjacent thereto are wheel mounted.
Claim 10
Dependent Claim
18 words
A device as called for in claim 8, wherein the other end of the housing includes a hitch.
Claim 11
Dependent Claim
39 words
A device as called for in claim 1, wherein said housing comprises a plurality of similar, end-connected segments each of which includes a pair of elongate discharge nozzles wherein the nozzles of each section are disposed in axial alignment.
Claim 12
Dependent Claim
29 words
A device as called for in claim 1, wherein the means for introducing gaseous media into the interior of the housing comprises a blower and means for driving it.
Claim 13
Dependent Claim
26 words
A device as called for in claim 3, wherein the length of the first mentioned nozzle is from 15-25 percent of the diameter of said housing.
Claim 14
Independent Claim
136 words
The method of burning elongate combustible material such as, by way of example, tree trunks, brush, and the like, which comprises the steps of: a. digging a pit in the earth of sufficient width and length to accommodate a charge of elongate combustible material; b. igniting the combustible material within the pit; c. continuously introducing a first, elongate, stream of air from the upper edge of one side wall of the pit, across the width of the pit, at a location above the upper surface of the combustible material housed therein, to impinge against the surface of the other side wall and thence be deflected into the combustible material; and of d. continuously introducing a second, elongate stream of air adjacent and downwardly along the first mentioned side of said pit, and into said combustible material.
Claim 15
Independent Claim
136 words
The method of burning elongate combustible material such as, by way of example, tree trunks, brush, and the like, which comprises the steps of: a. digging a pit in the earth of sufficient width and length to accommodate a charge of elongate combustible material; b. igniting the combustible material within the pit; c. continuously introducing a first, elongate, stream of air from the upper edge of one side wall of the pit, across the width of the pit, at a location above the upper surface of the combustible material housed therein, to impinge against the surface of the other side wall and thence be deflected into the combustible material; and of d. continuously introducing a second, elongate stream of air adjacent and downwardly along the first mentioned side of said pit, and into said combustible material.
Claim 16
Dependent Claim
34 words
A method as called for in claim 13, wherein the volume of air discharged in said second stream is from 15-25 percent of the total volume of air discharged from both of said streams.
Claim 17
Dependent Claim
29 words
A method as called for in claim 13, wherein the total quantity of air discharged through both streams approximates 1, 000 c.f.m. per foot of length of said pit.
References Cited (Backward Citations)
US3785302A
Cited
US3773000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |