| Patents for F28G 1 - Non-rotary, e.g. reciprocated, appliances (1,988) |
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| 11/01/1990 | WO1990012852A1 Process for steam-cracking hydrocarbons |
| 11/01/1990 | WO1990012851A1 Process and apparatus for decoking a steam-craking installation |
| 10/24/1990 | CN1046345A Method of decoking installation for steam cracking hydrocarbous and corresponding steam-cracking installation |
| 10/18/1990 | WO1990011843A1 Tube cleaning apparatus |
| 10/10/1990 | EP0391038A1 Soot blower |
| 09/19/1990 | CN1045453A Controlling rapping cycle |
| 09/07/1990 | WO1990009850A1 Flexible lance and drive system |
| 08/22/1990 | EP0224490B1 Device and process for cleaning a recirculation-type regenerative heat exchanger |
| 08/21/1990 | CA1272857A1 Sludge lance wand |
| 08/09/1990 | WO1990009556A1 Apparatus for cleaning the inner surfaces of tubes in operating multi-tube heat transfer devices |
| 08/09/1990 | CA2024105A1 Apparatus for cleaning the inner surfaces of tubes in operating multi-tube heat transfer devices |
| 07/31/1990 | CA1272184A1 Method and automatic device for cleaning a gaseous fluid heat exchanger |
| 07/04/1990 | CN1008660B Soot blower |
| 07/03/1990 | US4937907 Cleaning plug assembly |
| 07/03/1990 | CA1271186A1 Correction for tube sheet misalignment in heat exchangers having tube cleaning arrangements therein |
| 06/27/1990 | EP0375533A1 Pig pipe-line for fluid distribution comprising a 3-way valve |
| 06/06/1990 | EP0371859A1 Cleaning method for tubes |
| 06/01/1990 | CA2004307A1 Tube cleaning process |
| 05/30/1990 | CN1042594A Method of and apparatus for cleaning liquid circling-runing tube and use of same in heat exchanger |
| 05/23/1990 | EP0369851A1 Cleaning device for a tube wherein a fluid is circulating |
| 05/08/1990 | US4922937 Exhausting high speed gas; preventing shock waves by adding fluid to decelerate |
| 05/01/1990 | US4921546 High velocity steaming and simultaneous injection of deceleration fluid; pipes |
| 04/17/1990 | US4917176 Device for cleaning inner surfaces of heat exchanger tubes |
| 04/11/1990 | EP0107705B1 Process for producing a slurry containing concentrated liquid and ice crystals and subassembly therefor |
| 03/29/1990 | DE3929782A1 Cleaning of heat exchanger tubes - by driving cleaning balls through tubes by water pressure |
| 03/21/1990 | EP0358921A1 Tube bundle apparatus |
| 03/07/1990 | EP0357572A1 A process for cleaning tube type heat exchangers |
| 03/06/1990 | US4905900 Water cannon apparatus for cleaning a tube bundle heat exchanger, boiler, condenser, or the like |
| 03/01/1990 | DE3829359A1 Tubular heat exchanger having an integrated tube cleaning system |
| 02/22/1990 | DE3827900A1 Device and method for measuring the size or for monitoring the wear and the number of bodies which are entrained in flowing liquids |
| 02/15/1990 | DE3827357A1 Device for raising the quality factor of tubular heat exchangers, such as surface condensers, etc. |
| 02/13/1990 | CA1265784A1 Method and apparatus for recovering heat from gases containing substances which contaminate heat transfer surfaces |
| 02/06/1990 | US4898197 Cleaning of tubes using projectiles |
| 01/31/1990 | EP0353154A1 Apparatus for removing spent pellets from tube bundle cleaning installations |
| 01/25/1990 | DE3824773A1 Heat exchanger |
| 12/20/1989 | CN2049754U Spring brush for smoke pipe |
| 11/28/1989 | CA1263375A1 Apparatus and method for cleaning rotating regenerative heat exchangers |
| 11/23/1989 | EP0342767A1 Controlling rapping cycle |
| 10/25/1989 | EP0338928A1 Heat pipe heat exchanger |
| 10/24/1989 | US4875522 Heat pipe heat exchanger |
| 09/26/1989 | CA1259802A1 In-situ removal of oily deposits from the interior surfaces of conduits |
| 09/19/1989 | US4867879 Pipeline sieve with a suction removal device |
| 09/12/1989 | US4865121 Cleaning system for fluid-conducting tubing |
| 09/05/1989 | CA1259003A1 Sootblower nozzle apparatus |
| 08/29/1989 | US4860821 Process for cleaning tube type heat exchangers |
| 08/15/1989 | US4856545 Multi-lange tube bundle cleaner |
| 08/01/1989 | US4853014 Method and apparatus for cleaning conduits |
| 07/19/1989 | EP0324440A1 Cathodic protection apparatus in systems for the circulation of corrosive liquids |
| 07/18/1989 | CA1257456A1 Cleaning tool |
| 07/12/1989 | CN1033873A Spiral scale-eliminating device with heat-exchange intensifying function |
| 07/11/1989 | US4846259 Method for controlling fluid flow in a tube of a heat exchanger |
| 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 |
| 05/24/1989 | EP0317331A2 Device for cleaning inner surfaces of heat exchanger tubes |
| 05/23/1989 | CA1254520A1 Method and apparatus for removing extraneous matter from a cooling water system |
| 05/16/1989 | US4830099 Apparatus for extracting cleaning bodies from a liquid |
| 05/09/1989 | US4827953 Flexible lance for steam generator secondary side sludge removable |
| 05/09/1989 | CA1253848A1 Apparatus for cleaning radioactive tube banks |
| 05/02/1989 | US4825940 Automatic process and device for cleaning a heat exchanger for gaseous fluids |
| 04/26/1989 | EP0152439B1 Method and apparatus for cleaning pipes, tubes, etc. |
| 04/11/1989 | US4820422 Connecting into system casing filled with movable spheres |
| 03/28/1989 | US4815523 Device and process for cleaning a recirculation-type regenerative heat exchanger |
| 03/21/1989 | US4813384 Soot blower lance with ceramic coating |
| 03/09/1989 | WO1989001600A3 Four-way fixture for reversing the direction of flow of liquid or gaseous media conveyed in pipe systems |
| 03/09/1989 | DE3728955A1 Heat exchanger |
| 03/02/1989 | DE3727467A1 4-wege-armatur zum umlenken der stroemungsrichtung von in rohrleitungs-systemen gefuehrten, fluessigen oder gasfoermigen medien 4-way fitting to redirect the stroemungsrichtung of in piping systems led, liquid or houses on gaseous media |
| 02/23/1989 | WO1989001600A2 Four-way fixture for reversing the direction of flow of liquid or gaseous media conveyed in pipe systems |
| 02/21/1989 | US4805653 Mobile articulatable tube bundle cleaner |
| 01/11/1989 | CN2030709U Screwy reinforced heat-exchanging scale-removing device |
| 12/28/1988 | CA1247310A Method and apparatus for cleaning pipes, tubes etc. |
| 11/22/1988 | CA1245115A1 Eddy current workpiece positioning apparatus |
| 11/22/1988 | CA1245114A1 Method and apparatus for providing oscillating contaminant-removal stream |
| 10/11/1988 | US4776384 Method for monitoring copper-alloy tubes for maintaining corrosion resistance and cleanliness factor of their inner surfaces |
| 10/06/1988 | WO1988007156A3 Flexible lance for steam generator secondary side sludge removal |
| 10/05/1988 | CN87108129A Electro-impulse rapper system for boilers |
| 10/04/1988 | US4774975 Sludge lancing system |
| 09/27/1988 | US4773357 Water cannon apparatus and method for cleaning a tube bundle heat exchanger, boiler, condenser, or the like |
| 09/22/1988 | WO1988007156A2 Flexible lance for steam generator secondary side sludge removal |
| 09/08/1988 | DE3806004A1 Cleaning unit for a heat exchanger |
| 09/07/1988 | EP0281433A2 Working system for primary pipes and water-chamber in a vapour generator of a nuclear plant |
| 09/07/1988 | CN88100751A Improved weld joint for soot blower lance tube |
| 09/01/1988 | DE3705240A1 Process and equipment for controlling the corrosion protection and/or the mechanical cleaning of heat exchanger pipes |
| 08/31/1988 | EP0280219A1 Improved weld joint for soot blower lance tube |
| 08/30/1988 | US4766952 Waste heat recovery apparatus |
| 08/30/1988 | CA1241243A1 Workpiece positioning apparatus with plural sensors |
| 08/24/1988 | EP0279035A1 Heat exchanger having tubes conveying flue gases |
| 08/23/1988 | US4765394 Heat exchanger with a soot blower |
| 08/16/1988 | US4763696 Weld joint for soot blower lance tube |
| 08/09/1988 | US4762168 Injection of ferrous ions, sponge balls to remove deposits |
| 07/19/1988 | US4757785 Steam generator sludge removal apparatus |
| 07/13/1988 | CN87212651U Hydraulic spring cleaning device for boiler stoker |
| 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 | US4750548 Device for sealing retractable soot-blower lances |
| 06/14/1988 | US4750547 Method for cleaning inner surfaces of heat-transfer tubes in a heat-exchanger |
| 05/31/1988 | CA1237349A1 Sludge removal device for cleaning the tubular plate of a steam generator |
| 05/03/1988 | US4741292 Electro-impulse rapper system for boilers |
| 04/13/1988 | EP0263238A2 Device for sealing withdrawable soot-blower lances |
| 02/23/1988 | US4726391 Rotary switching device provided with an axially displaceable conical chamber |