| Patents for F28G 9 - Cleaning by flushing or washing, e.g. with chemical solvents (1,594) |
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| 09/08/2004 | CN1165739C Dry ice cleaning method for convection chamber pipes of fue oil heating furnace |
| 08/18/2004 | CN1522296A Improved scale conditioning agents |
| 08/12/2004 | WO2004067945A1 Arrangement and method for recirculation of exhaust gases of a combustion engine |
| 08/11/2004 | CN1161580C Pipeline cleaning device and method for refrigerating apparatus |
| 08/05/2004 | US20040149310 Partial dissolution, softening, and disruption; pretreating with chelant and reducing agent in pH controlled solution; cleaning heat exchangers; effective against highly densified magnetite; faster, low temperature, reduced waste, noncorrosive |
| 07/14/2004 | CN1157584C Cleaning method and cleanser for use in water way system |
| 07/13/2004 | US6761774 Comprising a chelating agent having at least two carboxylic acid functional groups and a basic agent selected from alkali metal hydroxides; for in situ removal of silicate-containing scale from interior surfaces of boilers |
| 07/06/2004 | USRE38542 Upper bundle steam generator cleaning system and method |
| 06/24/2004 | WO2004053023A1 Cooling device for coke-oven gas |
| 06/24/2004 | DE10258066A1 Gas cooler for coke oven with condensed by-products has upright or horizontal battery of heat exchanger panels located in gas passage |
| 06/23/2004 | EP1431674A1 Water heater comprising water softening means |
| 06/23/2004 | CN1506638A 热水器 Water Heater |
| 06/23/2004 | CN1154822C Piping washing method and piping washing apparatus for refrigerating apparatus |
| 06/17/2004 | US20040112812 Water heater |
| 05/27/2004 | US20040102351 without disassembling equipment or rinsing; monocyclic saturated terpene, nonionic surfactant, steam |
| 05/25/2004 | US6740168 Scale conditioning agents |
| 05/19/2004 | CN2616865Y Spray dust-removing device for solar water heater |
| 05/12/2004 | EP1417441A1 Passive back-flushing thermal energy system |
| 05/06/2004 | DE10202406B4 Vorrichtung zum Reinigen eines Heizkörpers An apparatus for cleaning a heater |
| 04/28/2004 | CN1147368C Apparatus and method for cleaning cooling pipelines |
| 04/15/2004 | DE10246258A1 Klimaanlage Air Conditioning |
| 04/08/2004 | US20040065107 Air conditioning system |
| 04/07/2004 | EP1404489A2 Improved scale conditioning agents |
| 04/07/2004 | CN1487262A Boiler coke eliminating agent |
| 04/01/2004 | WO2003106735A3 Method for scale removal |
| 03/24/2004 | CN1483506A Method for recovering waste liquid produced in process of chemical cleaning for intlustrial boiler |
| 03/24/2004 | CN1143073C Upper bundle steam generator cleaning system and method |
| 03/23/2004 | US6708717 Flushing system for air conditioning drainage pipes |
| 03/09/2004 | US6702903 Washing method of petroleum equipment and washing solution for use with the method |
| 03/04/2004 | WO2004019343A1 Method for cleaning a steam generating device of a compressed water reactor |
| 03/04/2004 | DE10238730A1 Verfahren zur Reinigung des Dampferzeugers eines Druckwasserreaktors Methods for cleaning up of the steam generator of a pressurized water reactor |
| 02/26/2004 | US20040035446 Low-pressure cleaning system using high-velocity-high volume air |
| 02/26/2004 | US20040035445 Washers having nozzles and computers, used for removal of wastes from interior walls of heat exchangers |
| 02/26/2004 | DE10312892A1 Bag for use when washing internal components of split air conditioning systems is made from transparent polyvinyl chloride with upper collar of foam-sheathed wire |
| 02/25/2004 | EP1391680A1 Automated tube cleaner |
| 02/24/2004 | US6695927 Method and cleaning solution for cleaning a container |
| 02/18/2004 | CN2603926Y 换热器清洗机 Heat Exchanger Cleaning Machine |
| 01/22/2004 | WO2004008056A1 Cleaning system and cleaning device for heat exchanger |
| 01/08/2004 | DE10226685A1 Heizgerät mit Brenner und Wärmeübertrager Boiler with burner and heat exchanger |
| 12/24/2003 | WO2003106735A2 Method for scale removal |
| 12/18/2003 | WO2003103863A1 Cleaning method |
| 12/17/2003 | CN2593147Y Spiral double-turbulence heat exchange reinforced descaling apparatus |
| 12/10/2003 | CN2591546Y Scaler for water heater |
| 12/10/2003 | CN1130545C Descaling device and method for steam generator |
| 11/13/2003 | WO2003092919A1 Methods of simultaneously cleaning and disinfecting industrial water systems |
| 11/13/2003 | CA2484029A1 Methods of simultaneously cleaning and disinfecting industrial water systems |
| 11/05/2003 | CN2584288Y Spray gun head |
| 10/30/2003 | WO2003000464A3 Improved scale conditioning agents |
| 10/30/2003 | US20030203827 Method of simultaneously cleaning and disinfecting industrial water systems |
| 10/30/2003 | US20030200997 Forming chlorine dioxide in situ using alakli halites or halates; killing microorganisms |
| 10/29/2003 | CN1451938A Radiator inwall treatment process |
| 10/29/2003 | CN1125965C Defrost and liquid distribution for plate fin heat exchanger |
| 10/22/2003 | CN1125311C Boiler washing method and apparatus for power plant |
| 10/08/2003 | CN1447090A Operation method of head exchanger |
| 09/24/2003 | CN2575595Y Motorcycle approach angle & departure angle measuring meter |
| 08/27/2003 | EP1116000A4 Exfoliated magnetite removal system and controllable force cooling for boilers |
| 08/26/2003 | US6609531 Condenser tube cleaning nozzle |
| 08/13/2003 | CN1435670A Industrial air conditioner surface cooler in-line chemical cleaning method |
| 08/12/2003 | US6604577 Geothermal heat pump cleaning control system and method |
| 08/07/2003 | DE10203119C1 Process for cleaning a solid body system comprises subjecting different cross-sectional sections of a solid body system to a cleaning medium while simultaneously passing a fluid through a channel |
| 07/08/2003 | US6588049 Cleaning installation and device for removing soot or similar deposits |
| 06/25/2003 | CN1112566C Ball collector for cleaning rubber ball by condenser |
| 06/18/2003 | CN1424554A Dual turbulent spiral forced heat exchanging and automatic descaling device |
| 06/11/2003 | CN2555458Y Automatic rotary filtering net |
| 05/28/2003 | EP1314798A2 Device for the descaling of pipes and apparatuses in heating and cooling installations |
| 05/08/2003 | WO2003038364A1 A waste heat recovering device, cleaning-water auto-filtering device, and exhaust gas regenerating device for tenters |
| 05/07/2003 | CN2549363Y Air-conditioner |
| 05/06/2003 | CA2185561C Sootblower nozzle |
| 04/29/2003 | US6554006 Piping deposit removal from stator water cooling systems |
| 04/17/2003 | WO2003031882A1 Absorption refrigeration device |
| 04/16/2003 | EP0755495B1 An upper bundle steam generator cleaning system and method |
| 04/16/2003 | CN2545536Y Auto-cleaning double-row vacuum tube solar water heater |
| 04/08/2003 | US6543392 Deployment system for an upper bundle steam generator cleaning/inspection device |
| 03/27/2003 | US20030056816 Condenser tube cleaning nozzle |
| 03/27/2003 | US20030056812 Method and apparatus for cleaning air handling systems |
| 03/26/2003 | CN2541795Y Automatic cleaner for solar heat collecting tube of solar water heater |
| 03/05/2003 | CN2539131Y Automatic descaling device for solar heat collecting pipe |
| 02/27/2003 | US20030037807 Comprises use of solution of surfactant (anionic, cationic, amphoteric, and nonionic) and oil (kerosene, light gas oil, vacuum gas oil, and light cycle oil fraction obtained from fluid catalytic cracking unit) |
| 02/26/2003 | CN1399118A Dry ice cleaning method for convection chamber pipes of fuel oil heating furnace |
| 02/25/2003 | US6524397 Method for removing an acidic deposit |
| 02/25/2003 | US6523502 Exfoliated magnetite removal system and controllable force cooling for boilers |
| 02/20/2003 | WO2003014627A1 Passive back-flushing thermal energy system |
| 02/20/2003 | US20030034149 Passive back-flushing thermal energy system |
| 02/20/2003 | DE20214606U1 Central heating system radiator portable water jet cleaning assembly has portable water jet delivery system with side-supports, protective rubber splash screens with spacers |
| 02/12/2003 | CN1101246C Self-sucking method of preventing furnace fume deposit |
| 02/04/2003 | US6513462 Descaling device for steam generator |
| 01/23/2003 | US20030015313 Apparatus and method for cleaning a shell-type cooler in situ and cleaning liquid for use therewith |
| 01/16/2003 | DE20113516U1 Apparatus for cleaning pipelines, heat exchangers, condensers and catalysts comprises using carbon dioxide in the liquid and/or super-critical state |
| 01/08/2003 | CN1390292A Apparatus for treating exhausted heating gas |
| 01/07/2003 | US6502590 Method and apparatus for flushing x-ray tube heat exchanger |
| 01/03/2003 | WO2003000464A2 Improved scale conditioning agents |
| 01/02/2003 | US20030004081 Comprising a chelating agent having at least two carboxylic acid functional groups and a basic agent selected from alkali metal hydroxides; for in situ removal of silicate-containing scale from interior surfaces of boilers |
| 12/26/2002 | US20020196891 Scale conditioning agents |
| 12/04/2002 | EP0907848B1 A valve for changing the direction of flow in pipes leading to/from a heat-exchanger |
| 11/26/2002 | US6485578 Chemical cleaning process for removing fouling |
| 10/30/2002 | CN2519233Y Refrigerant pipe line cleaning machine for refrigerating equipment |
| 10/01/2002 | US6457348 High pressure steam line target inserter |
| 09/26/2002 | US20020134141 High pressure steam line target inserter |
| 09/25/2002 | CN2513071Y Micro autoamtic washing machine for stains on air conditioner heat exchanger fin surface |
| 09/18/2002 | CN1370267A Air preheater cleaner |