Patent US1045671A successfully refreshed from Google Patents.
Patent US5010831A successfully refreshed from Google Patents.
US5010831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate fuel burner and method of operation
Assignee: Individual
•
Filing: 1988-04-18
•
Granted: 1991-04-30
•
Expires: 2008-04-18
Abstract
Abstract Burner having two coaxially mounted tubes (3,4). The outer tube (3) is provided with means to introduce both air and particulate matter in the space between both tubes. For conveying of solid matter between both tubes screw conveyor means (5) are provided. Transferring of gasses resulting from gasification of the solid material to the inner space of the inner tube 4 is provided by opening (15).
Inventors
- 👤 Frans L. Halfhide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:39
CPC Classifications
F; F23; F23D; F23D1/00; F23G; F23G7/00; F23G7/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
Burner comprising two coaxially mounted tubes provided with means to introduce air as well as particulate matter in the space between both tubes and means to discharge burnt matter from that space and wherein the inner tube being at least partially gas porous, said inner tube being provided with means to introduce a combustion agent, characterized in that, in the space between both tubes screw conveyor means are provided.
Claim 2
Dependent Claim
69 words
Burner comprising two coaxially mounted tubes provided with means to introduce air as well as particulate matter in the space between both tubes and means to discharge burnt matter from that space and wherein the inner tube being at least partially gas porous, said inner tube being provided with means to introduce a combustion agent, characterized in that, in the space between both tubes screw conveyor means are provided.
Claim 3
Dependent Claim
19 words
Burner according to claim 1, wherein the screw conveyor means are connected to the inner tube, being rotatably suspended.
Claim 4
Dependent Claim
23 words
Burner according to claim 1, wherein means are provided for transferring of products of incomplete combustion, comprising filter openings in the inner tube.
Claim 5
Dependent Claim
19 words
Burner according to claim 1, wherein at least a vacuum air injector member is provided in the inner tube.
Claim 6
Dependent Claim
21 words
Burner according to claim 1, wherein means are provided for introducing of air in the space between the tubes with over-pressure.
Claim 7
Dependent Claim
43 words
Burner according to claim 1, wherein the means for introducing of air comprise of an air box surrounding at least a part of the outer tube being air permeable, wherein the lower part of the air box being connected to further conveyor means.
Claim 8
Dependent Claim
25 words
Burner according to claim 6, wherein the means to discharge burnt matter from the space between the tubes are connected to the further conveyor means.
Claim 9
Dependent Claim
105 words
Method for operating a burner comprising two coaxially mounted tubes provided with means to introduce air as well as particulate matter in the space between both tubes and means to discharge burnt matter from that space and wherein the inner tube being at least partially gas porous, said inner tube being provided with means to introduce a combustion agent, characterized in that, in the space between both tubes screw conveyor means are provided, wherein the speed of the conveyor means is so adapted to the nature and quantity of the material introduced that substantially all of the solid (partially burnt) particles are conveyed by it.
Claim 10
Dependent Claim
105 words
Method for operating a burner comprising two coaxially mounted tubes provided with means to introduce air as well as particulate matter in the space between both tubes and means to discharge burnt matter from that space and wherein the inner tube being at least partially gas porous, said inner tube being provided with means to introduce a combustion agent, characterized in that, in the space between both tubes screw conveyor means are provided, wherein the speed of the conveyor means is so adapted to the nature and quantity of the material introduced that substantially all of the solid (partially burnt) particles are conveyed by it.
References Cited (Backward Citations)
DE2608559A1
Cited
DE2622930A1
Cited
GB1590341A
Cited
US4361100A
Cited
US4470358A
Cited
US4593629A
Cited
US4782765A
Cited
US4856438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |