US3703349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground flare
Assignee: Combustion Unlimited Inc
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Filing: 1971-05-17
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Granted: 1972-11-21
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Expires: 1991-05-17
Abstract
Abstract A ground flare is provided for incinerating waste combustible gas from refineries and the like in which the waste gases are conducted underground to and through horizontal gas supply pipes on which vertical gas supply pipes having nozzles at their upper ends are mounted. The nozzles deliver the gases for burning within a refractory lined vertical rectangular enclosure to which air is admitted at the bottom and the products of combustion discharged at the top, the flare being free from operating difficulties heretofore encountered.
Inventors
- 👤 John F Straitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:46
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A ground flare for use on the ground comprising a supply pipe disposed beneath the surface of the ground, a plurality of horizontally disposed branch pipes disposed beneath the surface of the ground and connected to said supply pipe, a plurality of nozzle supporting pipes extending upwardly from each of said branch pipes and with upper portions extending above the surface of the ground and disposed in rows, a gas delivery nozzle on the upper end of each of said supporting pipes, and an enclosure having vertical walls with their lower ends spaced above the ground for access of air to the interior and being open at the top for discharge of products of combustion, said nozzles being disposed within said enclosure for delivering said gas for admixture with said air for combustion within said enclosure.
Claim 2
Dependent Claim
136 words
A ground flare for use on the ground comprising a supply pipe disposed beneath the surface of the ground, a plurality of horizontally disposed branch pipes disposed beneath the surface of the ground and connected to said supply pipe, a plurality of nozzle supporting pipes extending upwardly from each of said branch pipes and with upper portions extending above the surface of the ground and disposed in rows, a gas delivery nozzle on the upper end of each of said supporting pipes, and an enclosure having vertical walls with their lower ends spaced above the ground for access of air to the interior and being open at the top for discharge of products of combustion, said nozzles being disposed within said enclosure for delivering said gas for admixture with said air for combustion within said enclosure.
Claim 3
Dependent Claim
136 words
A ground flare for use on the ground comprising a supply pipe disposed beneath the surface of the ground, a plurality of horizontally disposed branch pipes disposed beneath the surface of the ground and connected to said supply pipe, a plurality of nozzle supporting pipes extending upwardly from each of said branch pipes and with upper portions extending above the surface of the ground and disposed in rows, a gas delivery nozzle on the upper end of each of said supporting pipes, and an enclosure having vertical walls with their lower ends spaced above the ground for access of air to the interior and being open at the top for discharge of products of combustion, said nozzles being disposed within said enclosure for delivering said gas for admixture with said air for combustion within said enclosure.
Claim 4
Dependent Claim
136 words
A ground flare for use on the ground comprising a supply pipe disposed beneath the surface of the ground, a plurality of horizontally disposed branch pipes disposed beneath the surface of the ground and connected to said supply pipe, a plurality of nozzle supporting pipes extending upwardly from each of said branch pipes and with upper portions extending above the surface of the ground and disposed in rows, a gas delivery nozzle on the upper end of each of said supporting pipes, and an enclosure having vertical walls with their lower ends spaced above the ground for access of air to the interior and being open at the top for discharge of products of combustion, said nozzles being disposed within said enclosure for delivering said gas for admixture with said air for combustion within said enclosure.
Claim 5
Dependent Claim
18 words
A ground flare as defined in claim 1 in which said enclosure is rectangular in horizontal cross section.
Claim 6
Dependent Claim
18 words
A ground flare as defined in claim 1 in which said nozzles are disposed in rows and columns.
Claim 7
Dependent Claim
32 words
A ground flare ad defined in claim 1 in which said nozzles having nozzle openings to discharge said gas upwardly and outwardly in a conical pattern for admixture with the interior air.
Claim 8
Dependent Claim
19 words
A ground flare ad defined in claim 1 in which said walls are metallic with interior ceramic refractory linings.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |