Class F22D : PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS
Subclass 1/06: Feed-water heaters, e.g. preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways (heat-exchange tubes in general F28F) the tubes having plain outer surfaces, e.g. in vertical arrangement in horizontal arrangement
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10514183 | Exhaust gas latent heat recovery device | Jul 15, 16 | Dec 24, 19 | MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
| 10295174 | Steam generation apparatus and associated control system and methods for providing venting | Mar 01, 16 | May 21, 19 | Skavis Corporation |
| 10197266 | Boiler system comprising an integrated economizer | Jun 12, 15 | Feb 05, 19 | Thermodesign, Inc. |
| 10125977 | Steam generation apparatus and associated control system and methods for providing a desired injection pressure | Mar 01, 16 | Nov 13, 18 | Skavis Corporation |
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