US4167909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid fuel burner
Assignee: Individual
•
Filing: 1978-06-07
•
Granted: 1979-09-18
•
Expires: 1998-06-07
Abstract
Abstract A solid fuel burner utilizing at least two stacked chambers one of which contains a combustion bed for the solid fuel burning process. A second chamber below the first bed containing chamber serves to combust volatile gases unburned in the first chamber with the aid of an oxidizing rejector.
Inventors
- 👤 Hector A. Dauvergne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:00
CPC Classifications
F; F23; F23K; F23K3/00; F23K3/16; F23B; F23B5/00; F23B5/04; F23B7/00; F23B7/002; F23B7/007; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/16; F23G5/165; F23L; F23L17/00; F23L17/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A solid fuel burner comprising: a. A combustion bed; b. a first combustion chamber encompassing said first combustion bed; c. a second combustion chamber located adjacent said first combustion chamber; d. means for delivering solid fuel into said first chamber and onto said combustion bed; e. means for recycling gaseous products from the combustion of the solid fuel in said first chamber to said second chamber; f. means for exhausting gaseous matter from said second chamber to a space externally located, with respect to the solid fuel burner; g. means for providing gaseous matter for the oxidation of said solid fuel; h. a third chamber formed adjacent said second chamber by a partition, said third chamber communicating with said second chamber to permit the transfer of solids therefrom, and said gaseous products recycling means further includes means for recycling gaseous matter from said third chamber to said second chamber.
Claim 2
Dependent Claim
149 words
A solid fuel burner comprising: a. A combustion bed; b. a first combustion chamber encompassing said first combustion bed; c. a second combustion chamber located adjacent said first combustion chamber; d. means for delivering solid fuel into said first chamber and onto said combustion bed; e. means for recycling gaseous products from the combustion of the solid fuel in said first chamber to said second chamber; f. means for exhausting gaseous matter from said second chamber to a space externally located, with respect to the solid fuel burner; g. means for providing gaseous matter for the oxidation of said solid fuel; h. a third chamber formed adjacent said second chamber by a partition, said third chamber communicating with said second chamber to permit the transfer of solids therefrom, and said gaseous products recycling means further includes means for recycling gaseous matter from said third chamber to said second chamber.
Claim 3
Dependent Claim
27 words
The solid fuel burner of claim 1 in which said recycling means includes air ejection means for removing the gaseous matter from said first and third chambers.
Claim 4
Dependent Claim
19 words
The solid fuel burner of claim 2 in which said partition forming said third chamber comprises a fume hood.
Claim 5
Dependent Claim
41 words
The solid fuel burner of claim 1 in which said solid fuel delivering means comprises a mechanical conveyor located above said first combustion bed and includes entry means for delivering the solid fuel to the upper portion of said first chamber.
Claim 6
Dependent Claim
18 words
The solid fuel burner of claim 4 which additionally comprises means for removing ash from said third chamber.
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) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |