Class F23B : METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
Subclass 50/06: Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10571152 | Reverse combustion type combustion apparatus | Jan 04, 18 | Feb 25, 20 | Noritz Corporation |
| 10495300 | Highly efficient wood stove/heater | Nov 24, 17 | Dec 03, 19 | Liberator, LLC |
| 10247422 | Combustion system | Mar 27, 14 | Apr 02, 19 | Not available |
| 8845769 | Downdraft gasifier with improved stability | Jan 18, 11 | Sep 30, 14 | ZEROPOINT CLEAN TECH, INC. |
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