| Patents for F28G 9 - Cleaning by flushing or washing, e.g. with chemical solvents (1,594) |
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| 08/21/2002 | CN1089431C Regenerated heat exchanger |
| 08/14/2002 | EP1230516A1 Apparatus for treating exhausted heating gas |
| 08/06/2002 | US6430249 Polymer dispersants and methods of use in a nuclear steam generator |
| 07/24/2002 | CN1360182A Air conditioning device and method for suppression of mildew in air conditioning device |
| 07/23/2002 | US6423152 Method and apparatus for treatment of internal surfaces in a closed-loop fluid system |
| 07/17/2002 | EP1223402A1 Piping deposit removal from stator water cooling systems |
| 07/10/2002 | EP1021693A4 An upper bundle steam generator cleaning, inspection, and repair system |
| 06/27/2002 | US20020078975 Piping deposit removal from stator water cooling systems |
| 06/26/2002 | EP1217312A2 Air conditioner and method for inhibiting mold growth in said air conditioner |
| 06/06/2002 | US20020066555 Geothermal heat pump cleaning control system and method |
| 05/14/2002 | US6386465 Gun |
| 05/09/2002 | US20020053539 Method and apparatus for flushing contaminants from a container of fluids |
| 05/08/2002 | EP1203196A1 Air preheater cleaner |
| 04/30/2002 | US6379540 Engine transmissions, cooling systems |
| 04/17/2002 | CN1345410A Descaling device for steam generator |
| 03/27/2002 | CA2357827A1 Self-washing coil for air conditioning units |
| 03/13/2002 | CN1080755C Dissolving method for asphalt resultant in oil well |
| 03/06/2002 | CN2480692Y Chemical cleaner for large boiler |
| 01/31/2002 | US20020012414 Polymer dispersants and methods of use in a nuclear steam generator |
| 01/24/2002 | US20020007640 Flushing composition |
| 01/23/2002 | EP1068474A4 Chamber cleaning mechanism |
| 01/16/2002 | CN2472185Y Descaler for water heater |
| 01/09/2002 | EP1170567A1 Descaling device for steam generator |
| 12/19/2001 | CN2466598Y Self-descaling heat transfer enhancing turbulation device |
| 12/04/2001 | CA2196552C Method for removing alkaline sulfate scale |
| 11/28/2001 | CN2462341Y Boiler tube driving structure of semiconductor diffusive stove tube cleaner |
| 11/27/2001 | US6321542 Method for cleaning pipe and pipe cleaning apparatus for refrigerating apparatus |
| 11/20/2001 | US6318108 Self-washing coil for air conditioning units |
| 11/15/2001 | US20010039958 Method for removing an acidic deposit |
| 10/30/2001 | US6308774 Method for the cleaning of heat exchange tubes and collecting device for the collection of deposits from heat exchange tubes |
| 10/25/2001 | DE10021254A1 Method and appliance for washing out pipes involve shut-off valves, pump, heat exchanger, flushing flap, suction pipe and connection |
| 10/23/2001 | US6305393 Flushing system with pressurized air |
| 10/18/2001 | DE10017624A1 Cleaning and eliminating combustion residues involves spraying high pressure liquid jet at normal temperature onto residues from outside through open boiler hatch during operation of boiler |
| 10/17/2001 | EP1144560A1 Flushing composition |
| 10/10/2001 | EP1143037A2 Method for removing an acidic deposit |
| 10/09/2001 | USRE37402 Accessory structure for spray cleaning a heat exchanger in a vehicle air-conditioner |
| 10/03/2001 | CN1315222A Self-sucking method for preventing furnace fume deposit |
| 09/19/2001 | EP1134537A2 Cleaning installation for removing soot |
| 09/04/2001 | US6283133 Method for cleaning heavy hydrocarbon scale adhered to heat exchanger and piping structure for cleaning |
| 08/29/2001 | EP1128151A1 Cleaning installation for removing soot |
| 08/28/2001 | US6279330 Apparatus and method for cleaning pipes of refrigerating unit |
| 08/23/2001 | US20010015216 Engine transmissions, cooling systems |
| 08/23/2001 | US20010014992 Device for use in a cleaning installation for removing soot similar deposits, a valve assembly and cleaning installation with such a device |
| 08/09/2001 | WO2001057462A1 Descaling device for steam generator |
| 07/26/2001 | WO2001053753A1 Apparatus for treating exhausted heating gas |
| 07/18/2001 | EP1116000A1 Exfoliated magnetite removal system and controllable force cooling for boilers |
| 07/04/2001 | CN1301604A Cleaning method for central air conditioner |
| 06/13/2001 | CN1299455A Chamber cleaning mechanism |
| 05/16/2001 | EP1099488A1 Machine for cleaning pipelines |
| 05/15/2001 | US6230359 Air intake passage cleaning method and its apparatus |
| 05/10/2001 | WO2001032804A1 Method and device for chemically cleaning a metal surface coated with an adherent deposit formed with hydrocarbon decomposition products |
| 05/10/2001 | DE10054654A1 Heater cleaning appliance for cleaning convection heating bodies using cleaning liquid with liquid container with pressure prodn. element for conveying cleaning liquid from container |
| 05/08/2001 | US6228950 High purity acrylic homo or copolymer for treating blowdown water stream to prevent metal-oxide deposits on steam generator tubes in the secondary side of pressurized nuclear steam generator |
| 05/02/2001 | EP1095805A1 Accessory structure for a vehicle air conditioner |
| 04/18/2001 | CN1064752C Organic anti-scale corrosion inhibitor and its compounding process for low-pressure boiler |
| 04/10/2001 | US6213133 Filtration of transmission fluid pumped from cooler through first hose, external filter and second hose while aerating by compressed air injected into fluid flow then cleaning filter and reversing flow by electrically controlled valves |
| 02/27/2001 | CA2282731A1 Mixcir |
| 02/22/2001 | WO2001011935A2 Method of sludge removal in pressurized water nuclear reactors |
| 02/15/2001 | WO2001011304A1 Air preheater cleaner |
| 02/15/2001 | CA2378158A1 Air preheater cleaner |
| 02/13/2001 | US6187109 Cleaning composition for removing fouling and a method for using the same |
| 02/06/2001 | US6182677 Cleanout fitting for air conditioner evaporator drains |
| 02/06/2001 | US6182325 Chamber cleaning mechanism |
| 01/25/2001 | DE19933715A1 Tube bundle vaporizer comprises a chamber with tubes that pass through, and at least one flushing tube with a flushing agent connection |
| 01/17/2001 | EP1068474A1 Chamber cleaning mechanism |
| 01/03/2001 | EP0946944A4 Polymer dispersants and methods of use in a nuclear steam generator |
| 01/03/2001 | CN1278906A Pipeline cleaning device and method for refrigerating apparatus |
| 12/14/2000 | WO2000075400A1 Detergent composition for petroleum refining apparatus |
| 12/14/2000 | CA2375638A1 Detergent composition for petroleum refining apparatus |
| 12/06/2000 | CN2409483Y Arrow-shaped ball collecting net device |
| 11/30/2000 | WO2000071958A1 Method and system for cleaning heat-exchanging surfaces of a circulatory regenerative heat exchanger |
| 11/30/2000 | DE19918103A1 Vorrichtung zum Reinigen der Brennkammer und/oder der Rauchgaszüge eines Heizkessels Apparatus for cleaning the combustion chamber and / or the flues of a boiler |
| 11/23/2000 | DE19923200A1 Device for cleaning heat-exchanging surfaces of circulating regenerative heat exchanger involving rotor comprising several rotor sectors rotating around axis and supported in housing, lance of cleaning device having nozzle head at free end |
| 11/01/2000 | CN1271847A In-line cleaning method for industrial air conditioner |
| 10/25/2000 | EP1046863A1 Method of cleaning the combustion chamber and/or exhaust gas ducts of a boiler and device therefor |
| 10/24/2000 | US6135129 Cleaning the air intake passage and heat exchanger of an air conditioner by supplying cleaning solvent on a wiper together with compressed air to a blow-out port while blocking a plurality of other blow-out ports |
| 09/28/2000 | WO2000056854A1 Detergent for automotive air conditioner and method of cleaning automotive air conditioner |
| 09/13/2000 | CN1056444C Heat exchanger |
| 08/08/2000 | US6098573 Method and apparatus for cleaning boiler of power generation plant |
| 08/03/2000 | WO2000044859A1 Flushing composition |
| 08/02/2000 | EP1023123A1 A gun |
| 07/26/2000 | EP1022524A1 Apparatus and method for cleaning pipes of refrigerating unit |
| 07/26/2000 | EP1021693A2 An upper bundle steam generator cleaning, inspection, and repair system |
| 07/25/2000 | US6092491 Boiler wash |
| 07/05/2000 | EP1016837A1 Piping washing method and piping washing apparatus for refrigerating apparatuses |
| 05/31/2000 | CN1053041C Pressed water sprayer for cleaning of heat exchanger |
| 05/24/2000 | CN1254410A Piping washing method and piping washing apparatus for refrigerating apparatus |
| 05/23/2000 | US6065528 Air preheater cleaner |
| 05/23/2000 | US6065301 Accessory structure for vehicle air-conditioner |
| 05/17/2000 | CN2378708Y Cleaning device for heater |
| 05/17/2000 | CN1253275A Technology for cleaning centralized air conditioning equipment |
| 05/16/2000 | US6062486 High volume and low pressure water cleaning system |
| 05/09/2000 | US6058974 Valve for changing the direction of flow in pipes leading to/from a heat-exchanger |
| 04/11/2000 | US6047714 A cleaning solvent and compressed air are concurrently supplied through an air passage on heat exchanger side from a blow out port |
| 03/30/2000 | WO2000017576A1 Exfoliated magnetite removal system and controllable force cooling for boilers |
| 03/30/2000 | CA2345096A1 Exfoliated magnetite removal system and controllable force cooling for boilers |
| 03/29/2000 | CN1050898C Lance machine with flexible lance |
| 03/22/2000 | CN1247932A Collector for cleaned steam condenser rubber balls |
| 03/02/2000 | DE19837683A1 Heat exchange pipes and collection device cleaning method esp. for removing nuclear engineering equipment residue deposits |
| 02/23/2000 | EP0829695A4 Method of cleaning the inner surface of a steel circulation system using a lead-based liquid metal coolant |