| Patents for F28G 7 - Cleaning by vibration (611) |
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| 10/15/1991 | US5056587 Method for deslagging a boiler |
| 09/12/1991 | DE4010442C1 Boiler tube cleaner - has dust removed from tube exteriors using shaking drive |
| 08/07/1991 | EP0440465A1 Method and apparatus for removing foreign matter from heat exchanger tubesheets |
| 08/02/1991 | CA2035421A1 Method and apparatus for removing foreign matter from heat exchanger tubesheets |
| 07/03/1991 | EP0435486A2 System and method for loosening and removing sludge and debris from the interior of a vessel of a heat exchanger |
| 06/27/1991 | CA2032756A1 System and method for vertically flushing a steam generator during cleaning operation |
| 06/12/1991 | CN1012840B Method for cleaning inner surface of heat transfering tube of heat exchanger |
| 06/06/1991 | DE3942759C1 Cleaner for boiler ducts - has anvil impacted by hammer to transfer impact force onto wall |
| 05/28/1991 | US5019329 System and method for vertically flushing a steam generator during a shock wave cleaning operation |
| 04/17/1991 | EP0422267A1 Improved pressure pulse cleaning method |
| 04/17/1991 | EP0422266A1 Improved pressure pulse cleaning method |
| 04/16/1991 | US5007970 Cooling surface below softening point of deposits to harden for mechanical removal |
| 04/09/1991 | US5006304 Pressure pulse cleaning method |
| 03/26/1991 | US5002079 Pressure pulse method and system for removing debris from nuclear fuel assemblies |
| 03/13/1991 | CN1012008B Apparatus for cleaning transversetube |
| 02/19/1991 | US4993098 Apparatus for vibratory cleaning the surface of an article from foreign matter |
| 11/27/1990 | US4972805 Method and apparatus for removing foreign matter from heat exchanger tubesheets |
| 11/20/1990 | CA1276625C Controlling rapping cycle |
| 09/19/1990 | CN1045453A Controlling rapping cycle |
| 07/31/1990 | CA1272184A1 Method and automatic device for cleaning a gaseous fluid heat exchanger |
| 06/20/1990 | EP0373936A1 Pressure pulse method and system for removing debris from nuclear fuel assemblies |
| 06/13/1990 | CN1042851A Vibrating apparatus for removing surface dirt of article |
| 05/23/1990 | EP0302899B1 A method for producing pressure pulses in a mass of gas and a device for performing the method |
| 05/08/1990 | US4923374 Method for producing pressure pulses in a mass of gas and a device for performing the method |
| 05/01/1990 | US4921662 Pressure pulse cleaning method |
| 04/11/1990 | CN2055925U On-line automatic scale-remover of cool exchanging equipment |
| 03/28/1990 | CN2055066U Infrasonic and low-frequency sonic generator |
| 03/13/1990 | US4907542 Cleaning system for a horizontal type tube assembly |
| 02/13/1990 | US4899697 Pressure pulse cleaning apparatus |
| 02/06/1990 | US4898197 Cleaning of tubes using projectiles |
| 01/16/1990 | US4893588 Adaptive control technique for steam generator cleaning |
| 12/21/1989 | DE3819941A1 Method for cleaning the tubes in a steam generator, and device for carrying out the method |
| 11/23/1989 | EP0342767A1 Controlling rapping cycle |
| 11/07/1989 | US4878654 Method for cooling gases and/or vapors from non-ferrous metal treatment plants, and the relative apparatus |
| 11/02/1989 | EP0339289A1 Improved pressure pulse cleaning method |
| 11/02/1989 | EP0339288A1 Improved pressure pulse cleaning method |
| 09/27/1989 | CN1035886A Apparatus for cleaning transversetube |
| 09/20/1989 | EP0333182A1 Cleaning system for a horizontal type tube assembly |
| 08/24/1989 | WO1989007492A1 Device for vibrational removal of dirt from the surface of articles |
| 07/12/1989 | CN1033873A Spiral scale-eliminating device with heat-exchange intensifying function |
| 07/05/1989 | CN1033688A Automatical cleaner and heat transmission strengthening unit in heat transmission pipe |
| 06/27/1989 | US4841917 Radiation cooling unit for cooling dust-laden gases |
| 06/20/1989 | US4840145 Process and a device for cleaning inner or outer walls of vertically extending or inverted tubes of heat exchangers |
| 06/15/1989 | DE3740982A1 Device for cleaning pipes |
| 06/14/1989 | EP0319634A2 Device for cleaning a heating surface, especially for a boiler installation |
| 06/06/1989 | US4836146 Controlling rapping cycle |
| 05/23/1989 | US4831969 Process and a device for cleaning inner or outer walls of vertically extending or inverted tubes of heat exchangers |
| 05/02/1989 | US4825940 Automatic process and device for cleaning a heat exchanger for gaseous fluids |
| 02/15/1989 | EP0302899A1 A method for producing pressure pulses in a mass of gas and a device for performing the method. |
| 01/25/1989 | EP0300696A2 Sound generating system |
| 10/05/1988 | CN87108129A Electro-impulse rapper system for boilers |
| 08/02/1988 | USRE32723 Apparatus for deslagging steam generator tubes |
| 07/07/1988 | DE3644629A1 Vertical flow-heat distributor with heat recovery and harmful-substance reduction |
| 06/29/1988 | EP0272817A2 Electro-impulse rapper system for boilers |
| 06/14/1988 | US4750547 Method for cleaning inner surfaces of heat-transfer tubes in a heat-exchanger |
| 06/02/1988 | WO1988003995A1 A method for producing pressure pulses in a mass of gas and a device for performing the method |
| 05/04/1988 | EP0265549A1 Method of pressure pulse cleaning a tube bundle heat exchanger |
| 05/03/1988 | US4741292 Electro-impulse rapper system for boilers |
| 01/27/1988 | EP0254379A1 Boilers systems |
| 01/07/1988 | EP0251213A1 Apparatus for cleaning the inner or outer walls of standing or hanging heat exchanger tubes |
| 01/07/1988 | DE3621850A1 Method and device for cleaning the inner or outer wall of standing or hanging tubes of heat exchangers |
| 01/05/1988 | US4716611 Apparatus for cleaning pipes, tubes, and the like by launching pigs |
| 11/10/1987 | US4705054 Ultrasonic radiator cleaning system |
| 07/28/1987 | CA1224606A1 Transfer of impact force onto heating or cooling surfaces, and device for effecting such transfer |
| 07/28/1987 | CA1224605A1 Sonic cleaning device and method |
| 05/27/1987 | CN86107449A Method for cleaning inner surface of heat transfering tube of heat exchanger |
| 04/29/1987 | EP0219882A1 Process and automatic cleaning device for gaseous fluids |
| 04/28/1987 | US4660627 Heat exchanging with slowly rotating finned elements |
| 04/07/1987 | US4655846 Method of pressure pulse cleaning a tube bundle heat exchanger |
| 03/31/1987 | US4653578 Heat exchanger |
| 02/24/1987 | US4645542 Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like |
| 01/08/1987 | DE3524264A1 Scalable pipe grid |
| 11/25/1986 | US4624220 Infrasound generator |
| 11/18/1986 | CA1214004A1 Method of cleaning pipes, tubes etc. |
| 07/30/1986 | EP0188556A1 Heat exchanger cleaning |
| 07/22/1986 | CA1208086A1 Single drum all-welded boiler |
| 06/17/1986 | US4595048 Transfer of impact force onto heating or cooling surfaces, and device for effecting such transfer |
| 06/10/1986 | CA1205703A1 Apparatus for deslagging steam generator tubes |
| 01/30/1986 | WO1986000696A1 Heat exchanger cleaning |
| 07/17/1985 | EP0077364B1 Infrasound generator |
| 06/05/1985 | EP0143402A2 Improved apparatus for deslagging steam generator tubes |
| 05/21/1985 | US4517915 Low-frequency sound generator |
| 02/05/1985 | US4497282 Apparatus for deslagging steam generator tubes |
| 01/08/1985 | US4492113 Method and apparatus for cleaning and testing heat exchangers |
| 12/04/1984 | US4486388 Apparatus for neutralizing acidic or acid-containing pollutants in furnace flue gases |
| 08/28/1984 | CA1173335A1 Process for cleaning the scoria laden surfaces of an installation burning carbonaceous fuels |
| 07/24/1984 | US4461651 Fluidization of particles by gas flow through corrugated tube and expanding horn |
| 07/03/1984 | US4457361 Connection element for the transfer of knock- or impact-energy upon heating or cooling surfaces to be cleaned and located in a pressure vessel |
| 04/17/1984 | US4442800 For a furnace |
| 11/09/1983 | EP0093570A2 Boiler systems |
| 11/01/1983 | US4412583 Apparatus and methods for cooling exhaust gas streams containing suspended particles |
| 08/02/1983 | US4396434 Process for cleaning surfaces fouled by deposits resulting from combustion of carbon-bearing substances |
| 05/17/1983 | CA1146663A1 Low-frequency sound generator |
| 04/27/1983 | EP0077364A1 Infrasound Generator. |
| 03/08/1983 | US4375991 Ultrasonic cleaning method and apparatus |
| 01/18/1983 | US4368677 Pulse combustion system for boilers |
| 11/23/1982 | US4359962 Low-frequency sound generator |
| 11/11/1982 | WO1982003803A1 An arrangement in an infrasound generator |
| 07/27/1982 | CA1128495A1 Gas cooler for cooling hot gases charged with finely granular solid particles |
| 06/02/1982 | EP0053085A1 Method of cleaning surfaces soiled by deposits accrued during conbustion of carbon materials |