US3628903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Afterburner
Assignee: KENNETH C HOYT
•
Filing: 1970-05-11
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Granted: 1971-12-21
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Expires: 1990-05-11
Abstract
Abstract An afterburner for completing the combustion of stack gases and the like has a fuel supply to the interior of the stack and a mechanically controlled pilot which is blown by a jet of gas into the stack to ignite the fuel. The jet flows in parallel with the fuel supply. The pilot and fuel emerge centrally in the stack and are deflected by a downwardly concave deflector that cooperates with a larger upwardly concave deflector. An annular downwardly opening hood surrounds the stack and shields the pilot and the secondary air inlets.
Inventors
- 👤 Kenneth C Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/061; F23G7/065; F23Q; F23Q9/00; F23Q9/02; F23Q9/04; F23Q9/045
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
48 words
An afterburner as claimed in claim 1, said fuel supply means comprising a pair of orifices in parallel fluid circuit with each other, one of said orifices being larger than the other and supplying gas to said tube, and the said other orifice blowing across the pilot light.
Claim 2
Dependent Claim
23 words
An afterburner as claimed in claim 2, and a downwardly opening annular hood encompassing said stack and covering said orifices and pilot light.
Claim 3
Dependent Claim
16 words
An afterburner as claimed in claim 3, and means removably mounting said hood on the stack.
Claim 4
Dependent Claim
66 words
An afterburner as claimed in claim 4, said removable mounting means comprising a support carried by the stack, the inner margin of the hood resting on said support, one of said support and margin having a pin and the other of said support and margin having an opening in which said pin is removably disposed to locate the hood in a predetermined position on the stack.
Claim 5
Dependent Claim
29 words
An afterburner as claimed in claim 4, said gas supply means comprising a U-shaped tube with the lower edge of the hood disposed in the bend of the U.
Claim 6
Dependent Claim
29 words
An afterburner as claimed in claim 2, and a tube that extends through and is secured to the stack for conveying the blown pilot light toward said emerging fuel.
Claim 7
Dependent Claim
72 words
An afterburner as claimed in claim 7, said fuel tube terminating in an upwardly extending outlet, a relatively large upwardly concave deflector disc carried by and surrounding said outlet, and a relatively small downwardly concave disc disposed above said outlet, said tube for conveying the blown pilot light being secured adjacent its outer end in said wall of the stack and resting adjacent its inner end on said relatively large deflector disc.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |