Patent US4009989A successfully refreshed from Google Patents.
US4009989A
Expired / Lapsed
US
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Combination gas and oil burners
Assignee: NATIONAL AIROIL BURNER CO Inc
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Filing: 1976-03-11
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Granted: 1977-03-01
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Expires: 1996-03-11
Abstract
Abstract A combination gas and oil burner is disclosed for heating a radiant wall in a reforming furnace for petroleum refinery processes or the like to provide heat for radiation by the wall and in which oil, gas, or both fuels, may be employed, the burners being readily removable for inspection and maintenance, and in which operation can be effected with one fuel with the apparatus for the other fuel being removed without shutting down the operation, and with greater stability attained by surrounding the flame passageways with refractory faces.
Inventors
- 👤 Gordon M. Bitterlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20; F; F23; F23D; F23D17/00; F23D17/002
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
65 words
Combustion apparatus for heating an exposed inner face of an upwardly extending wall of a furnace comprising support means associated with said wall having an opening communicating with the exterior of said wall, register members or controlling the introduction of air into said opening, said support means having a burner block portion with a plurality of spaced air delivery openings directed upwardly along said wall,
Claim 2
Dependent Claim
65 words
Combustion apparatus for heating an exposed inner face of an upwardly extending wall of a furnace comprising support means associated with said wall having an opening communicating with the exterior of said wall, register members or controlling the introduction of air into said opening, said support means having a burner block portion with a plurality of spaced air delivery openings directed upwardly along said wall,
Claim 3
Dependent Claim
49 words
certain of said openings being frustoconical and flaring towards their outlets, one of said openings being elongated and flaring toward its outlet, an oil burner assembly having an oil burner nozzle disposed within said elongated opening for delivery of atomized oil for combustion upwardly within said elongated opening, and
Claim 4
Dependent Claim
49 words
certain of said openings being frustoconical and flaring towards their outlets, one of said openings being elongated and flaring toward its outlet, an oil burner assembly having an oil burner nozzle disposed within said elongated opening for delivery of atomized oil for combustion upwardly within said elongated opening, and
Claim 5
Dependent Claim
21 words
Combustion apparatus as defined in claim 1 in which gas manifolds are provided within said support means to which said gas
Claim 6
Dependent Claim
20 words
Combustion apparatus as defined in claim 1 in which said oil burner nozzle is centrally disposed within said elongated opening.
Claim 7
Dependent Claim
22 words
Combustion apparatus as defined in claim 3 in which gas burner nozzles are provided in said elongated opening on either side of
Claim 8
Dependent Claim
21 words
Combustion apparatus as defined in claim 1 in which said register members are shiftable for access to said opening in said
Claim 9
Dependent Claim
23 words
Combustion apparatus as defined in claim 1 in which said register members are pivotally mounted on said support means for access to said
Claim 10
Dependent Claim
54 words
Combustion apparatus as defined in claim 1 in which said support means comprises a burner block assembly, said burner block assembly has a lower burner block portion communicating with said opening, said burner block assembly has an upper burner block portion with said air delivery openings communicating with said lower burner block opening and
Claim 11
Dependent Claim
21 words
Combustion apparatus as defined in claim 7 in which gas manifolds are provided within said lower burner block opening to which
Claim 12
Dependent Claim
21 words
Combustion apparatus as defined in claim 7 in which said register members are pivotally mounted on the exterior of said wall
Claim 13
Dependent Claim
21 words
Combustion apparatus as defined in claim 7 in which said gas burners are carried on manifold means detachably mounted in said
Claim 14
Dependent Claim
19 words
Combustion apparatus as defined in claim 7 in which said oil burner is detachably mounted in said burner blocks.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |