| Patents for B08B 9 - Cleaning hollow articles by methods or apparatus specially adapted thereto (21,169) |
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| 02/06/1991 | EP0410995A1 Apparatus for flushing of hydraulic pipe systems or the like. |
| 02/05/1991 | US4989623 Apparatus and method for cleaning reagent delivery probes |
| 01/30/1991 | EP0410220A1 Drum-washing machine, with tunnels |
| 01/30/1991 | EP0409955A1 Apparatus for cleaning the inner surfaces of tubes in operating multi-tube heat transfer devices |
| 01/24/1991 | DE3923820A1 Rain-water tank stirring system - uses circulating pumps which direct jets of water over floor |
| 01/23/1991 | EP0409305A2 Beer lines cleansing device with coupling member therefor |
| 01/23/1991 | EP0408883A1 High pressure water jet cleaner and coating applicator |
| 01/23/1991 | CN2069760U Standard components for high-pressure oil pipes |
| 01/22/1991 | US4986476 Cleaning sprayers with a spraying-angle adjusting device |
| 01/22/1991 | US4986347 Scraper |
| 01/22/1991 | US4986293 Cleaning system |
| 01/22/1991 | CA1279240C Process and product for sulfur dissolution |
| 01/16/1991 | CN2069312U Multipurpose air sac |
| 01/15/1991 | US4985763 Jet nozzle for propelling an apparatus along a conduit and apparatus provided with such a jet nozzle |
| 01/15/1991 | US4984601 Unit apt to act upon the flow |
| 01/15/1991 | US4984593 Method and apparatus for cleaning freight containers as well as for treating and circulating the fluids used |
| 01/15/1991 | US4984329 Duct sweeper |
| 01/15/1991 | US4984322 Elastomeric disc for use on a pipeline pig |
| 01/10/1991 | WO1991000154A1 Vessel draining installation |
| 01/10/1991 | DE3920906A1 Fassentleerungsanlage Barrel emptying system |
| 01/10/1991 | DE3920046A1 Pulse generating valve for flushing pipework - has impeller driven pulse generating valves to supply water and air mixt. without external power supply |
| 01/09/1991 | EP0407340A1 Device for shaping a tube to be connected with a welding sleeve |
| 01/09/1991 | EP0407327A1 Portable drain cleaning apparatus |
| 01/09/1991 | CN2068866U Hand operated cleaner for conduit pipes |
| 01/03/1991 | DE3927880A1 Coating system using different paints - has different paint tanks selectively connected to spray device |
| 01/02/1991 | EP0405075A1 Pipeline pig |
| 01/01/1991 | US4981524 Herbicidal foam application |
| 01/01/1991 | US4981150 Foundation drain cleaning apparatus and method |
| 12/27/1990 | EP0403794A1 Spray nozzle for bottle cleaning machines |
| 12/26/1990 | CN2068021U Soft axle automatic feed paraphernalia of pipe dredging machine |
| 12/18/1990 | US4978447 Self-propelled apparatus for cleaning a water treatment tank |
| 12/18/1990 | US4977921 High gas flow rate production |
| 12/12/1990 | EP0401364A1 Ultrasound generator and its use |
| 12/12/1990 | EP0401266A1 Catheter cleaner. |
| 12/11/1990 | US4976278 Method and apparatus for introducing and positioning a tank contents removal means |
| 12/11/1990 | US4976002 Tube particle vacuum cleaner |
| 12/06/1990 | WO1990015290A1 Radon treatment system and method |
| 12/06/1990 | CA2033212A1 Radon treatment system and method |
| 12/05/1990 | EP0400422A1 Apparatus for cleaning beverage pipes, especially pipes of licensed premises |
| 12/05/1990 | CN2066774U Self-propelling pipe cleaning machine |
| 12/04/1990 | US4975001 Plastic pipe reboring tool |
| 12/04/1990 | US4974662 Devices for removing worn balls from cleaning installations for tube bundles |
| 12/04/1990 | US4974617 Using liquid harmonic longitudinal pressure waves |
| 12/04/1990 | US4974277 Pneumatic gun |
| 11/29/1990 | WO1990014551A1 Machining device operating within a pipe system |
| 11/29/1990 | WO1990014198A1 Manual tool for preparing tube ends for jointure |
| 11/29/1990 | DE3916186A1 Fuel element basin repair - by layer removing tool on frame with guide element on basin wall |
| 11/28/1990 | EP0399357A2 Device for cleaning clogged drains |
| 11/28/1990 | EP0399154A2 Cleaning device for drink dispensers |
| 11/23/1990 | WO1990014229A1 Process for reclaiming plastic containers |
| 11/23/1990 | CA2033091A1 Process for reclaiming plastic containers |
| 11/22/1990 | EP0398853A1 An improved method for cleaning ventilation ducts |
| 11/18/1990 | CA2015631A1 Method for cleaning ventilation ducts |
| 11/15/1990 | WO1990013370A1 Pneumatic desedimentation machine |
| 11/15/1990 | WO1990013369A1 Process of koshering containers |
| 11/15/1990 | WO1990011822A3 Gas flow control apparatus |
| 11/14/1990 | EP0397448A2 Device for working inside of pipes |
| 11/14/1990 | EP0397132A2 Device for removing components or material projecting from the interior space of pipes |
| 11/10/1990 | CA2053847A1 Inside processing apparatus |
| 11/09/1990 | CA2016296A1 Inside processing apparatus |
| 11/07/1990 | CN2065101U Tricycle pipe-cleaning machine |
| 11/06/1990 | US4968447 Tanks and tubes of paint delivery system |
| 11/06/1990 | US4967841 Horizontal well circulation tool |
| 11/01/1990 | WO1990012931A1 Can for removing blockages |
| 11/01/1990 | WO1990012662A1 Method and apparatus for cleaning and sanitizing hvac systems |
| 11/01/1990 | WO1990012661A1 Foundation drain cleaning apparatus and method |
| 10/31/1990 | EP0395628A2 Machining device for working the inner wall of an underground channel profile, in particular when non-circular |
| 10/31/1990 | EP0267908B1 Apparatus for flushing a piping system |
| 10/31/1990 | DE3917826A1 Dose zum beseitigen von verstopfungen Socket to remove blockages from |
| 10/31/1990 | DE3914362A1 Disposal of old paint cans - by machine which washes cans with jets of cleaning liquid |
| 10/30/1990 | US4966326 Air-blasting cartridge |
| 10/30/1990 | US4966177 Ultrasonic tube cleaning system |
| 10/30/1990 | US4965968 Blast cleaning |
| 10/25/1990 | DE3911781A1 Beer barrel filling and cleaning - involves control of flow of beer and cleaning media by computer |
| 10/18/1990 | WO1990011843A1 Tube cleaning apparatus |
| 10/18/1990 | WO1990011822A2 Gas flow control apparatus |
| 10/17/1990 | EP0392113A2 Apparatus for clearing obstructed fluid passageways |
| 10/17/1990 | CN1010052B Pneumatic bomb |
| 10/16/1990 | US4962778 Backwashing dispenser for air conditioner drain pans |
| 10/16/1990 | US4962566 Machine for cleaning tapped holes used for affixing the covers to armholes and eyeholes in steam generators |
| 10/10/1990 | EP0391845A2 Method and apparatus for cleaning containers |
| 10/09/1990 | US4961440 Chemical dispensing apparatus |
| 10/07/1990 | CA2012606A1 Method and apparatus for cleaning containers |
| 10/03/1990 | EP0390301A1 Cleaning method and device for the inner surface of an elongated hollow body |
| 10/03/1990 | CN2063052U Double-cyclic automatic pot washer |
| 10/03/1990 | CN1009806B Technology for purging pipe network with air-flow impact method |
| 10/03/1990 | CN1009805B Appartus for flushing piping system |
| 09/25/1990 | US4959126 Process for decoking a delayed coker |
| 09/20/1990 | DE3908845A1 Method for cleaning condensers and heat exchangers on the cooling water side |
| 09/20/1990 | DE3908143A1 Installation rinsing device |
| 09/20/1990 | DE3907740A1 Cleaning device |
| 09/18/1990 | US4957566 Acid cleaning of drums with interior linings |
| 09/18/1990 | US4957222 Barrel scraper |
| 09/18/1990 | US4957133 Flushing unit |
| 09/18/1990 | US4957123 Device for cleaning a drain |
| 09/18/1990 | US4956889 Portable drain cleaning apparatus |
| 09/12/1990 | EP0386303A2 Stepped brush |
| 09/11/1990 | US4956042 Process and apparatus for embrittling and subsequently removing an outer protective coating of a pipe or pipeline |
| 09/11/1990 | US4956033 Process for reclaiming plastic containers |
| 09/11/1990 | US4955100 Apparatus for cleaning pipelines for beverages and the like |