| Patents for F28G 7 - Cleaning by vibration (611) |
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| 12/08/1998 | US5846496 Apparatus for manufacturing chemical products |
| 11/24/1998 | US5841826 Method of using a chemical solution to dislodge and dislocate scale, sludge and other deposits from nuclear steam generators |
| 11/12/1998 | DE19714665C1 Removal and prevention device for ultrasonic depositions in heat exchangers |
| 07/23/1998 | WO1998031975A1 Device, system and method for on-line explosive deslagging |
| 07/15/1998 | EP0519050B1 Method and device for manufacturing chemicals |
| 06/23/1998 | US5769034 Device, system and method for on-line explosive deslagging |
| 06/09/1998 | US5764717 Chemical cleaning method for the removal of scale sludge and other deposits from nuclear steam generators |
| 06/09/1998 | US5763724 Method of manufacturing chemical products |
| 05/06/1998 | CN2280888Y Linea-arryed sound-wave dust cleaner |
| 04/22/1998 | EP0595867B1 A method of removing deposits from the walls of a gas cooler inlet duct, and a gas cooler inlet duct having a cooled elastic metal structure |
| 01/28/1998 | EP0821212A2 Heat exchanger |
| 01/27/1998 | US5711327 System for vibration cleaning of articles including radiators |
| 01/07/1998 | CN1169527A Sound emitter for low frequency sound |
| 12/29/1997 | EP0772696A4 Method for removing alkaline sulfate scale |
| 12/17/1997 | EP0812630A1 Method and device for imparting vibration to a pipe in a thermal enclosure |
| 12/14/1997 | CA2207810A1 Process and apparatus for inducing vibration of a conduit in a thermal enclosure |
| 12/11/1997 | DE19623108A1 Exhaust gas heat-exchanger e.g. for combined heat and power plant |
| 10/29/1997 | EP0803287A1 Method and device to reduce or prevent the deposit of solid particles on the internal wall of a conduit |
| 10/24/1997 | CA2203343A1 Process and apparatus for heat treatment of products running through a pipe |
| 10/23/1997 | DE19619526A1 Heat-exchanger heating or cooling gas |
| 10/07/1997 | US5674323 Pulsating liquid with standing wave, cavitation while vibrating column pipe at different frequency to dislodge material |
| 09/24/1997 | CN1160189A Single impact rapping hammer system and method for cleaning tube units |
| 06/26/1997 | DE19547269A1 Removal of cinders and ashes from fire grates in boiler plants |
| 05/14/1997 | EP0772696A1 Method for removing alkaline sulfate scale |
| 04/23/1997 | EP0633998B1 Method and device for percussive cleaning of objects |
| 04/09/1997 | CN1147081A Rappable steam generator tube bank |
| 03/06/1997 | WO1997008107A1 A chemical cleaning method for the removal of scale, sludge and other deposits from nuclear steam generators |
| 01/28/1997 | US5597417 Acceleration of striker; pressure balancing |
| 01/08/1997 | EP0752282A1 Method and apparatus for the induction of sonics, subsonics and/or supersonics into the interior of open-ended columns |
| 10/22/1996 | US5566649 Method and apparatus for the cleaning of fire tubes in a fire tube boiler |
| 10/02/1996 | EP0734291A1 Method for removing solid deposits from an object by means of mechanical vibration |
| 10/01/1996 | US5561583 Particulate-removal rapper-controller |
| 09/19/1996 | DE19508870A1 Cleaning mechanism for finned heating surfaces |
| 09/18/1996 | EP0732561A2 Single impact rapping hammer system and method for cleaning tube units |
| 09/10/1996 | US5553571 Rappable steam generator tube bank |
| 08/14/1996 | CN1128963A Method for cleaning inner surface of a pipe and device for carrying |
| 07/30/1996 | US5540275 Single impact rapping hammer system and method for cleaning tube units |
| 07/03/1996 | CN2230436Y High-efficiency supersonic dust-blowing device |
| 06/19/1996 | CN2229646Y Special descaling apparatus of drinking water furnace for railway passenger train |
| 06/12/1996 | EP0716282A1 Rappable steam generator tube bank |
| 06/08/1996 | CA2163172A1 Rappable steam generator tube bank |
| 04/25/1996 | WO1996011755A1 Method for removing solid deposits from an object by means of mechanical vibration |
| 04/25/1996 | CA2179021A1 Method for removing solid deposits from an object by means of mechanical vibration |
| 03/14/1996 | WO1996007763A1 Method for removing alkaline sulfate scale |
| 02/27/1996 | US5494004 For cleaning the interior walls of a heat producing system |
| 01/31/1996 | CN2218919Y Sound wave ash blower for large power station boiler |
| 01/09/1996 | US5482110 Device for cooling a deposit-forming gas |
| 12/13/1995 | CN2215110Y Acoustic wave dust blower |
| 11/21/1995 | CA2087518C Hammering system for watertube boiler |
| 10/17/1995 | US5458860 Dissolving |
| 08/22/1995 | US5443654 Heat exchanging, cooling the metal duct so that deposits become brittle, ready detaching |
| 08/01/1995 | CA2113918C A method of removing deposits from the walls of a gas cooler inlet duct, and a gas cooler inlet duct having a cooled elastic metal structure |
| 07/04/1995 | US5429077 Water hammer rapper method and apparatus |
| 06/22/1995 | DE4344480A1 Flexible heat exchanger for heat recovery from exhaust gases etc. |
| 06/13/1995 | US5423917 Method for cleaning heat exchanger tubes by creating shock wave and mixing the liquid with injected air |
| 05/31/1995 | CN2199520Y Rotary whistle impact wave type ash cleaning device |
| 05/24/1995 | CN2198592Y Ash cleaning controller for boiler |
| 04/27/1995 | DE4400070C1 Heat exchanger |
| 02/23/1995 | WO1995005250A1 Method of cleaning the inner surface of a pipe and device for carrying out said method |
| 01/25/1995 | EP0635694A2 System for cooling a gas which forms deposits |
| 01/18/1995 | EP0633998A1 Method and device for percussive cleaning of objects. |
| 12/06/1994 | CA1333319C Cleaning apparatus and process |
| 11/17/1994 | DE4324586C1 Device for cooling a film-forming gas |
| 09/28/1994 | CN2178343Y Electronic descaling and antiscale device |
| 08/18/1994 | WO1994018518A1 Method and device for percussive cleaning of objects |
| 07/28/1994 | DE4302109A1 Heat exchanger tube wall cleaning equipment |
| 06/21/1994 | CA1330259C Method for cooling gases and/or vapours from non-ferrous metal treatment plants, and the relative apparatus |
| 06/08/1994 | CN2168227Y Acoustic dust-blowing device |
| 05/31/1994 | US5315966 Hammering device for tube boilers |
| 05/19/1994 | DE4238793A1 Plant operating fault monitoring system - evaluates sound-waves generated by periodic striking of plant components to remove deposited material |
| 05/11/1994 | EP0595867A1 A method of removing deposits from the walls of a gas cooler inlet duct, and a gas cooler inlet duct having a cooled elastic metal structure |
| 03/30/1994 | CN2160099Y High frequency sonic wave burning-assisted dust remover |
| 02/22/1994 | US5287915 Heat exchanger and method for removing deposits from inner surfaces thereof |
| 01/05/1994 | CN2152196Y Supersonic pulse ash-removing and coke-removing device |
| 11/30/1993 | US5265629 Universal cleaning system utilizing cavitating fluid |
| 10/14/1993 | WO1993019834A1 Arrangement in connection with a flue gas scruber |
| 08/24/1993 | US5238055 Field adjustable rapper tie bar |
| 08/19/1993 | DE4140378A1 Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid |
| 08/05/1993 | WO1993014887A1 Method and device for removing ash deposits from the surfaces of technological installations |
| 05/18/1993 | US5211135 Apparatus and method of deslagging a boiler with an explosive blastwave and kinetic energy |
| 03/24/1993 | CN1070260A Method and apparatus for introducing hot process or flue gases into gas coder |
| 02/04/1993 | WO1993002331A1 A method of removing deposits from the walls of a gas cooler inlet duct, and a gas cooler inlet duct having a cooled elastic metal structure |
| 02/02/1993 | US5183513 Cyclically directing pulses of pressurized fluid into the vessel, the pulses cleans internal surfaces removing impurities such as scale or other buildup |
| 01/19/1993 | CA1312797C Method for cleaning steam-generator heating-surfaces |
| 01/14/1993 | DE4121815A1 Heat-exchanger for dust-laden exhaust gas - has top part of tube bundle outside exhaust passage in gas-tight chamber |
| 12/23/1992 | EP0519050A1 Method of manufacturing chemicals |
| 12/01/1992 | CA1310799C Tube cleaning apparatus |
| 10/13/1992 | US5154197 Chemical cleaning method for steam generators utilizing pressure pulsing |
| 07/24/1992 | CA2057565A1 Electro-hammer rapper |
| 07/23/1992 | WO1992011931A1 Method of manufacturing chemicals |
| 06/24/1992 | CN2108264U Electromagnetic vibration scaling preventive apparatus |
| 06/17/1992 | DE4116360A1 Device for cleaning pipes in steam producer - comprises vibration agitator with support frame and couplable to pipes |
| 05/06/1992 | EP0484042A1 Method for removing sludge and deposits from the interior of a heat exchanger vessel |
| 04/22/1992 | CN2102491U Infrasonic wave boiler dust remover using steam as power source |
| 03/03/1992 | US5092355 Pressure pulse method for removing debris from nuclear fuel assemblies |
| 03/03/1992 | US5092280 Pressure pulse cleaning apparatus |
| 01/21/1992 | US5082502 Gas explosion to produce shockwave |
| 01/07/1992 | US5079459 Electro-hammer rapper |
| 11/27/1991 | EP0458533A1 Chemical cleaning method for steam generators utilizing pressure pulsing |
| 11/27/1991 | CN1014929B Controllable method and apparatus for rapping dirt on heat exchanging surface |