Patent US2231084A successfully refreshed from Google Patents.
Patent US3822983A successfully refreshed from Google Patents.
US3822983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground flares
Assignee: Proctor A & Montecatini Edison
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Filing: 1973-04-23
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Granted: 1974-07-09
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Expires: 1993-04-23
Abstract
Abstract A ground flare with a combustion zone defined by a floor and walls constructed from earthen banks, stone, rock, bricks or the like. Tubes leading through the walls into the interior of the flare to convey primary combustion air to the combustion zone. A manifold disposed beneath the floor of the flare leads to a series of nozzles projecting upwardly from the flare which serve to discharge a waste gas into the combustion zone. Pilot burners are provided to ignite the waste gas. Some of the nozzles are each surmounted by an air moving device which is fed with steam. The steam flows over a Coanda annulus and serves to induce ambient air into the waste gas discharged by the nozzle.
Inventors
- 👤 A Proctor
- 👤 G Castorani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:26
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
70 words
In a ground flare comprising a combustion zone, means for conveying air to said combustion zone and means for conveying a waste combustible gas to said combustion zone; the improvement comprising a plurality of nozzles for discharging the combustible waste gas into the conbustion zone with at least one of the nozzles being operably associated with an air inducing device which operates in the manner known as the Coanda effect.
Claim 2
Dependent Claim
70 words
In a ground flare comprising a combustion zone, means for conveying air to said combustion zone and means for conveying a waste combustible gas to said combustion zone; the improvement comprising a plurality of nozzles for discharging the combustible waste gas into the conbustion zone with at least one of the nozzles being operably associated with an air inducing device which operates in the manner known as the Coanda effect.
Claim 3
Dependent Claim
22 words
A ground flare according to claim 1, wherein some of the plurality of nozzles are each associated with an air inducing device.
Claim 4
Dependent Claim
21 words
A ground flare according to claim 1, and further comprising means for feeding an inducing medium to the air inducing device.
Claim 5
Dependent Claim
49 words
A ground flare according to claim 1, and further comprising means for feeding steam to the air inducing device, the steam serving to induce air to mix with the gas so that a mixture of gas, air and steam is discharged from the associated nozzle into the combustion zone.
Claim 6
Dependent Claim
25 words
A ground flare according to claim 3, wherein there is provided means for varying the pressure of the inducing medium to control the combustion process.
Claim 7
Dependent Claim
24 words
A ground flare according to claim 4, wherein there is provided means for varying the pressure of the steam to control the combustion process.
Claim 8
Dependent Claim
17 words
A ground flare according to claim 1, and further comprising pilot burners for igniting the waste gas.
Claim 9
Dependent Claim
46 words
A ground flare according to claim 1, wherein the combustion zone is rectangular in plan view and is defined by walls lined internally with a refractory material, the nozzles projecting upwardly from the floor of the zone and communicating with a manifold laid below ground level.
Claim 10
Dependent Claim
26 words
A ground flare according to claim 8, wherein some of the walls have tubes extending therethrough, the tubes constituting means for conveying air to the zone.
Claim 11
Dependent Claim
30 words
A ground flare according to claim 8, wherein the nozzles are arranged in rows extending longitudinally of the zones and each nozzle is inclined towards one of the side walls.
Claim 12
Dependent Claim
35 words
A ground flare according to claim 8, wherein the manifold communicates with a waste gas feed pipe taken above ground level exteriorly of the walls and leading to a pressure vessel incorporating a water seal.
Claim 13
Dependent Claim
28 words
A groud flare according to claim 8, wherein the manifold communicates with one or more drain pipes and drain cocks permitting liquid to be drained from the manifold.
Claim 14
Dependent Claim
33 words
A ground flare according to claim 1, wherein some of the nozzles have sealing means adapted to open when the quantity of waste gas to be disposed of rises above a predetermined amount.
Claim 15
Dependent Claim
68 words
A ground flare according to claim 1, wherein the air inducing device has a body with a central bore of aerofoil section, communicating with an air inlet at one end of the body, a chamber with an outlet adapted to receive inducing medium, and an internal ''''Coanda'''' annulus over which the inducing medium flows to induce air to flow through the bore in combination with the inducing medium.
Claim 16
Dependent Claim
59 words
A ground flare according to claim 14, wherein the air inducing device is supported on its associated nozzle and spaced apart therefrom to permit waste gas discharged from the nozzle to enter the inlet in addition to the air so that the device discharges a mixture of the waste gas, air and the inducing medium into the combustion zone.
Claim 17
Dependent Claim
81 words
A ground flare comprising means for defining a combustion zone, means for conveying air to said zone, a plurality of nozzles for discharging a waste gas for combustion in said zone, air inducing devices which operate on the Coanda principle operably associated with at least some of the nozzles and means for feeding an inducing medium, to each of said devices to induce air to mix with the gas discharged from the nozzle associated therewith whereby to effect substantially smokeless combustion.
Claim 18
Dependent Claim
81 words
A ground flare comprising means for defining a combustion zone, means for conveying air to said zone, a plurality of nozzles for discharging a waste gas for combustion in said zone, air inducing devices which operate on the Coanda principle operably associated with at least some of the nozzles and means for feeding an inducing medium, to each of said devices to induce air to mix with the gas discharged from the nozzle associated therewith whereby to effect substantially smokeless combustion.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |