US3638591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner having means including underfire air means for eliminating smoke
Assignee: Individual
•
Filing: 1970-04-13
•
Granted: 1972-02-01
•
Expires: 1990-04-13
Abstract
Abstract Tepee burners having means for concentrating, collecting and reintroducing unburned particles are provided with underfire air systems which uniformly distribute air to the fire piles. An early underfire air system (FIG. 1) includes inclined pipe sections having downwardly directed nozzle tubes. A later underfire air system (FIG. 10) includes nozzles having partially embedded, slotted burner pots and caplike grates having diffuser plates setting in the slots in the pots. A latest underfire air system (FIGS. 16 and 18) includes partially embedded burner pots and caps having radial nozzles positioned on the pots. The means for concentrating, collecting and reintroducing the unburned particles include crown collectors from which ducts lead to blowers which draw the unburned particles and gases from the collectors and blow them with ambient air chordally into the burners so as to aid the coriolis effect, one of the burners (FIGS. 13-15) having adjustable blower outlet nozzles.
Inventors
- 👤 Jerry S Lausmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:00
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/36
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
65 words
In an underfire air system, plural diffusers spaced and separated from one another, header means for supplying air to said diffusers from a source of air, said plural diffusers being distributed in uniform fashion around a common center, the diffusers being divided into groups, the diffusers of each group having a center different from that of the other groups and different from said common center.
Claim 2
Dependent Claim
65 words
In an underfire air system, plural diffusers spaced and separated from one another, header means for supplying air to said diffusers from a source of air, said plural diffusers being distributed in uniform fashion around a common center, the diffusers being divided into groups, the diffusers of each group having a center different from that of the other groups and different from said common center.
Claim 3
Dependent Claim
22 words
A system as in claim 1 in which there are at least two headers and two groups of diffusers for each header.
Claim 4
Dependent Claim
43 words
A system as in claim 2 in which there are feeder arms for the diffusers of each group and wherein the distance between the centers of adjacent groups is less than twice the effective length of an arm to attain an overlapping relationship.
Claim 5
Dependent Claim
27 words
A system as in claim 3 in which the headers and feeder arms are embedded in a supporting strata and wherein the diffusers project above such strata.
Claim 6
Dependent Claim
16 words
A system as in claim 4 wherein the strata is inclined downwardly away from each diffuser.
Claim 7
Dependent Claim
33 words
A system as in claim 4 wherein at least most of the diffusers are each in the form of a removable diffuser cap having an interior plenum chamber communicating with lateral orifice ports.
Claim 8
Dependent Claim
42 words
A system as in claim 3 in which the axes of the arms which are closest the common center, bypass said center in spaced relation, and wherein there are four diffusers for each group and each diffuser has its own feeder arm.
Claim 9
Dependent Claim
73 words
In an underfire air system, a nozzle comprising a pot to be embedded in the ground and having a plurality of slots, and a cap member fitting on said pot and having a top plate, the cap member having radial spacer plates positioned in the slots and spacing the top plate from the top of the pot to define lateral orifices leading from said chamber to the exterior surface of said cap member.
Claim 10
Dependent Claim
73 words
In an underfire air system, a nozzle comprising a pot to be embedded in the ground and having a plurality of slots, and a cap member fitting on said pot and having a top plate, the cap member having radial spacer plates positioned in the slots and spacing the top plate from the top of the pot to define lateral orifices leading from said chamber to the exterior surface of said cap member.
Claim 11
Dependent Claim
89 words
A diffuser cap for an underfire air system, said cap comprising: a cylindrical skirt portion of a predetermined diameter for fitting on upwardly projecting portion of a feeder element, and a head proton defining a plenum chamber surrounded by a cylindrical wall of a diameter greater than said predetermined diameter, said wall having slots defining lateral ports for the delivery of air, said head having an imperforate top portion, said plenum chamber extending laterally beyond said skirt portion so that rising air will be uniformly discharged from said slots.
Claim 12
Dependent Claim
89 words
A diffuser cap for an underfire air system, said cap comprising: a cylindrical skirt portion of a predetermined diameter for fitting on upwardly projecting portion of a feeder element, and a head proton defining a plenum chamber surrounded by a cylindrical wall of a diameter greater than said predetermined diameter, said wall having slots defining lateral ports for the delivery of air, said head having an imperforate top portion, said plenum chamber extending laterally beyond said skirt portion so that rising air will be uniformly discharged from said slots.
Claim 13
Dependent Claim
84 words
A nozzle unit for a burner having an upright shell within which burning is to occur, said unit including an infeed nozzle for delivering a gas to the interior of said shell, said nozzle comprising a conduit member projecting through said shell in fixed relation to said shell, a tubular deflector, mounting means mounting the tubular deflector on the inner end of said conduit for adjustment oblique to the axis of the conduit whereby to permit varying the direCtion of discharge from said conduit.
Claim 14
Dependent Claim
84 words
A nozzle unit for a burner having an upright shell within which burning is to occur, said unit including an infeed nozzle for delivering a gas to the interior of said shell, said nozzle comprising a conduit member projecting through said shell in fixed relation to said shell, a tubular deflector, mounting means mounting the tubular deflector on the inner end of said conduit for adjustment oblique to the axis of the conduit whereby to permit varying the direCtion of discharge from said conduit.
Claim 15
Dependent Claim
31 words
A nozzle unit as in claim 10 wherein said mounting means has a control portion projecting exteriorly of said shell to facilitate adjustment of said deflector from outside the burner shell.
References Cited (Backward Citations)
US1392453A
Cited
US652227A
Cited
US1173581A
Cited
US1464272A
Cited
US2530208A
Cited
US2608169A
Cited
US3027881A
Cited
US3354847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |