Class F23L : AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
Subclass 13/02: Construction of valves or dampers for controlling air supply or draught (in general F16K) pivoted about a single axis but having no other movement (formed as linked slats each pivoted about an axis F23L 13/08)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11892200 | Furnace | Jun 15, 20 | Feb 06, 24 | FIRE CHIEF INDUSTRIES LLC |
| 11719433 | Velocity damper for a recovery boiler | Nov 11, 21 | Aug 08, 23 | Andritz, Inc. |
| 11703221 | Flue damper having a float coupled to a damper gate | Sep 16, 20 | Jul 18, 23 | Field Controls LLC |
| 11530814 | Adjustable restrictor for burner | Mar 12, 18 | Dec 20, 22 | Beckett Gas Inc. |
| 11480334 | Integrated damper control system | Mar 25, 19 | Oct 25, 22 | Field Controls LLC |
| 11226095 | Velocity damper for a recovery boiler | Jan 20, 20 | Jan 18, 22 | Andritz, Inc. |
| 10976075 | System and method to reduce standby energy loss in a gas burning appliance and components for use therewith | Dec 16, 16 | Apr 13, 21 | INVENSYS CONTROLS AUSTRALIA PTY LTD. |
| 10816214 | Sealed damper | Mar 11, 16 | Oct 27, 20 | Not available |
| 10684040 | Furnace | Aug 25, 16 | Jun 16, 20 | FIRE CHIEF INDUSTRIES LLC |
| 10598404 | Damper with adjustable resistance to blade motion | Jun 26, 17 | Mar 24, 20 | Research Products Corporation |
| 10502455 | System and method to reduce standby energy loss in a gas burning appliance and components for use therewith | Jan 14, 10 | Dec 10, 19 | INVENSYS CONTROLS AUSTRALIA PTY LTD. |
| 10480821 | Water heater | Jun 21, 16 | Nov 19, 19 | Rinnai Corporation |
| 10422527 | Combustion apparatus | Jun 23, 16 | Sep 24, 19 | Rinnai Corporation |
| 10408448 | Damper system for heater stack | Jan 07, 16 | Sep 10, 19 | Not available |
| 10337727 | Furnace inducer choke and a gas furnace employing the same | Sep 18, 18 | Jul 02, 19 | Lennox Industries Inc. |
| 10281149 | Reverse flow prevention apparatus for common exhaust flue and combustion apparatus having same | May 26, 16 | May 07, 19 | KYUNGDONG NAVIEN CO., LTD. |
| 10240787 | Integrated damper control system | Apr 27, 12 | Mar 26, 19 | Field Controls LLC |
| 10222061 | Method and burner using the curie effect for controlling reactant velocity for operation in pre-heated and non-pre-heated modes | Jan 05, 17 | Mar 05, 19 | American Air Liquide, Inc. |
| 10215404 | Dual venturi for combustor | Sep 13, 13 | Feb 26, 19 | KYUNGDONG NAVIEN CO., LTD. |
| 10161268 | System, method and apparatus for minimizing heat loss in a heat recovery steam generator | Jan 13, 17 | Dec 25, 18 | General Electric Technology GmbH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0175,606 | FURNACE | Feb 06, 24 | May 30, 24 | Not available |
| 2023/0408,087 | Electronic Control Device and Flow Rate Measurement System | Sep 21, 21 | Dec 21, 23 | Not available |
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