US3840320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flarestack combustion method
Assignee: Individual
•
Filing: 1972-04-19
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Granted: 1974-10-08
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Expires: 1992-04-19
Abstract
Abstract A burner for disposing of low pressure fuel gases with a steam inlet adapted to direct steam (originally at high pressure) to flow over a director surface so that entrainment of surrounding air occurs (Coanda effect) and towards a fuel gas inlet supplying low pressure fuel gas, the feed line for the fuel gas being an internal passage of the director body.
Inventors
- 👤 D Desty
- 👤 C Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:08
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/08; F23G7/085
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
217 words
A method for disposing of low pressure fuel gases, comprising the steps of: causing said low pressure fuel gases to flow in a stream; passing a stream of high pressure steam over a deflector surface which comprises a surface of revolution formed by the rotation of a quadrant of a circle and an inwardly curved continuation about the axis of the direction of flow of said low pressure fuel gases, whereby said stream of high pressure steam is directed in a first direction generally perpendicular to the direction of flow of said stream of low pressure fuel gases and is thereafter caused to flow in the same general direction as the direction of flow of said stream of low pressure fuel gases but angularly thereto so that said stream of high pressure steam and said stream of low pressure fuel gases converge, the change in the direction of flow of said stream of high pressure steam inducing a low pressure zone in the air surrounding said stream of high pressure steam to thereby entrain said surrounding air into said stream of high pressure steam, and said steam, entrained air and fuel gases being mixed upon the respective streams of steam and fuel gases converging together; and igniting and burning said mixture of steam, air and fuel gases.
Claim 2
Independent Claim
217 words
A method for disposing of low pressure fuel gases, comprising the steps of: causing said low pressure fuel gases to flow in a stream; passing a stream of high pressure steam over a deflector surface which comprises a surface of revolution formed by the rotation of a quadrant of a circle and an inwardly curved continuation about the axis of the direction of flow of said low pressure fuel gases, whereby said stream of high pressure steam is directed in a first direction generally perpendicular to the direction of flow of said stream of low pressure fuel gases and is thereafter caused to flow in the same general direction as the direction of flow of said stream of low pressure fuel gases but angularly thereto so that said stream of high pressure steam and said stream of low pressure fuel gases converge, the change in the direction of flow of said stream of high pressure steam inducing a low pressure zone in the air surrounding said stream of high pressure steam to thereby entrain said surrounding air into said stream of high pressure steam, and said steam, entrained air and fuel gases being mixed upon the respective streams of steam and fuel gases converging together; and igniting and burning said mixture of steam, air and fuel gases.
Claim 3
Dependent Claim
21 words
A method as claimed in claim 1, wherein said steam is supplieD at a pressure of between 70 and 300 kN/m2.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |