| Patents for F28F 19 - Preventing the formation of deposits or corrosion, e.g. by using filters (4,908) |
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| 01/08/1992 | EP0464247A1 Apparatus for scale inhibition of tube bundles |
| 01/02/1992 | DE4019916A1 Verfahren und vorrichtung zum kontinuierlichen herstellen einer hartbonbonmasse Method and apparatus for the continuous manufacture of a hard candy mass |
| 12/17/1991 | US5072789 Heat exchanger made of aluminum |
| 12/10/1991 | US5070938 Having two layer protective coating; conversion film with a metal and antimicrobial film which bonds with it |
| 11/27/1991 | EP0458149A1 Heat exchanger in an HF alkylation process |
| 11/27/1991 | CN1056572A Heat exchanger in hf alkylation process |
| 11/05/1991 | US5063117 Copper fin material for heat-exchanger and method of producing the same |
| 10/30/1991 | EP0454550A1 Heat exchanger, in particular for corrosive fluids |
| 10/23/1991 | EP0453080A1 An apparatus for and method of placing fluids in heat exchange relationship |
| 10/15/1991 | CA1290745C Kneader-mixer |
| 10/08/1991 | US5054549 Heat exchanger |
| 10/02/1991 | EP0449459A1 Plastic clad metal laminated heat transfer partitions |
| 10/02/1991 | DE4109969A1 Surface with measurement area esp. for film thickness measurement - has conical frustum needles with measurement areas in slots for use as casting vessel heat exchange surface |
| 09/27/1991 | CA2039018A1 Plastic clad metal laminated heat transfer partitions |
| 09/25/1991 | EP0357609B1 A heat exchanger |
| 09/18/1991 | EP0207961B1 Food processing system and liquid adjustment apparatus for use therein |
| 09/04/1991 | CN1013772B Method for controll corrosion by chlorine ion at dew point of heat exchanger |
| 08/28/1991 | EP0443340A1 Heat exchanger |
| 08/27/1991 | US5042574 Aluminum clad aluminum fin structure brazed to partition of iron aluminum intermetallic; corrosion resistance |
| 08/27/1991 | US5042573 Cylindrical chamber |
| 08/13/1991 | US5038856 Arrangement for the protection of tube sections of platen-like heat-transfer surfaces disposed in a gas conduit against wear by gases laden with solid particles |
| 08/08/1991 | WO1991011671A1 Heat exchanger for aggressive gaseous media |
| 08/08/1991 | DE4009664A1 Waermetauscher fuer aggressive, gasfoermige medien Heat exchanger for aggressive media gasfoermige |
| 08/06/1991 | US5036903 For gas stream containing water |
| 07/31/1991 | EP0438941A1 Device and method for preventing corrosion of a metallic insulated casing |
| 07/30/1991 | US5035282 Heat exchanger made of aluminum and surface treating method therefor |
| 07/09/1991 | US5029637 Heat exchanger, especially for cooling cracked gas |
| 06/18/1991 | CA1284923C Fin of heat exchanger and method of making it |
| 06/12/1991 | EP0431632A1 Heat exchanger made of aluminum |
| 06/06/1991 | DE3939778A1 Heat-exchanger with cleaning system - has driven rotary tube working against scrapers on fixed inner and outer tubes |
| 05/29/1991 | CN1012703B Corrosion protection for heat exchanger |
| 05/16/1991 | WO1991006615A1 Heat exchanger apparatus |
| 05/14/1991 | US5014774 Biocidal coated air conditioning evaporator |
| 05/14/1991 | CA1284067C Apparatus to reduce or eliminate fluid bed tube erosion |
| 04/23/1991 | US5009962 Using mixture of carboxymethyl cellulose and methylolacrylamide |
| 04/09/1991 | US5005285 Method of producing an aluminum heat exchanger |
| 03/20/1991 | EP0418097A1 Apparatus and method for absorbing the vibration energy of a vibrating tube |
| 03/20/1991 | EP0417894A2 Tube and fin assembly for heat exchangers in power plants |
| 03/19/1991 | US5000821 Apparatus for controlling solid particle flow in an evaporator |
| 03/13/1991 | CN1012007B Method and apparatus for cooling hot product gas |
| 03/12/1991 | US4998464 Or continuous cooling |
| 03/06/1991 | CN1049715A Aluminium heat exchanging material used in heat exchanger |
| 02/26/1991 | US4995452 Internal combustion engine |
| 02/26/1991 | CA1280741C Frost free heat exchanger |
| 02/19/1991 | US4993621 Method of protecting corrosion-susceptible walls against corrosion |
| 02/19/1991 | US4993485 Easily disassembled heat exchanger of high efficiency |
| 02/12/1991 | US4992380 By measuring characteristics of tracer introduced with treating agent for reducing corrosion and scaling |
| 02/12/1991 | US4991647 Heat exchanger |
| 02/06/1991 | EP0411112A1 Heat exchanger. |
| 01/23/1991 | EP0409130A1 Aluminum heat exchanger and method of manufacturing same |
| 01/16/1991 | EP0407474A1 Biocidal protective coating for heat exchanger coils. |
| 12/13/1990 | WO1990015119A1 Use of nickel-based alloys in thermal cracking of a petroleum charge and a reactor for the implementation of said process |
| 12/13/1990 | DE3919143A1 Heat exchanger for heating or cooling room - is made from sheet metal with internal passages for cooling medium |
| 12/05/1990 | EP0400700A1 Scraped surface heat exchanger |
| 12/05/1990 | CN1047567A Device for inserting and positioning tool inside heat exchanger tube and use of this device |
| 11/28/1990 | EP0399863A1 Device for the introduction and the positioning of a tool into a pipe of a steam generator and use of that device |
| 11/27/1990 | US4973359 Surface treatment chemical and bath for forming hydrophilic coatings and method of surface-treating aluminum members |
| 11/27/1990 | US4972903 For transferring heat energy from one fluid to another |
| 11/23/1990 | CA2016846A1 Device for introducing and locating of tools in the tube of a heat exchanger, and use of same |
| 11/22/1990 | EP0231178B1 Corrosion protection for heat exchangers |
| 11/20/1990 | US4971141 Heat exchange apparatus |
| 11/20/1990 | US4970770 Method of making a coated heat exchanger with tubes and fins |
| 11/20/1990 | CA1276475C Ice making machine (mark i & mark ii) |
| 10/24/1990 | CN2064264U 铸铁冷却水套 Cast iron cooling water jacket |
| 10/03/1990 | EP0390765A1 Splashing boards resistant to biofouling |
| 10/02/1990 | US4960167 Heat exchanger |
| 09/20/1990 | DE3908277A1 Erosion protection for heat exchangers |
| 09/20/1990 | DE3907346A1 Recuperator pipe |
| 09/18/1990 | US4957948 Polymer and organic phosphate; corrosion resistance, antifouling agents |
| 09/18/1990 | US4957616 Compression bolt; elastomer cylinder; stress distribution washer |
| 09/18/1990 | US4957159 Aluminum heat exchanger provided with fins having hydrophilic coating |
| 09/18/1990 | CA1274086A1 Apparatus for cooling a hot product gas |
| 09/04/1990 | US4953629 Pack of heat transfer plates |
| 09/04/1990 | CA1273546A1 Flow control device in a heat exchanger tube |
| 08/23/1990 | WO1990009555A1 Heat exchanger |
| 08/23/1990 | DE3905140A1 Waermetauscher Heat Exchanger |
| 08/21/1990 | US4949543 Corrosion resistance |
| 08/14/1990 | US4947548 Method of making a heat exchanger for condensing furnace |
| 08/09/1990 | DE4002495A1 Neutralising acidic condensate in heat exchanger - by contact with alkaline-reacting metal oxide |
| 08/07/1990 | US4946140 System for automatically feeding chemical liquids to cooling towers |
| 07/31/1990 | CA1272187A1 Copper radiator for motor cars excellent in corrosion resistance and method of manufacturing the same |
| 07/24/1990 | US4942922 Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same |
| 07/11/1990 | EP0377089A1 Heat exchanger, especially for cooling a cracking gas |
| 07/05/1990 | DE3844229A1 Devices for preventing the bursting/cracking/destruction of pipelines and/or pipe/container systems in the event of changes or fluctuations in temperature/volume/pressure |
| 07/04/1990 | EP0376248A1 Copper fin material for heat-exchanger and method of producing the same |
| 07/03/1990 | CA1271187A1 Raw gas/purified gas heat exchanger |
| 06/27/1990 | CA2006660A1 Copper fin material for heat-exchanger and method of producing the same |
| 06/13/1990 | EP0372605A2 Corrosion protection for flue gas desulfurization installations |
| 06/13/1990 | EP0372300A1 Arrangement for protecting tube sections of plate-like heating surfaces in ducts against wear caused by gases charged with solid particles |
| 06/06/1990 | EP0236388B1 Process for coating tube-sheets or similar for condensers, coolers, heat exchangers or similar with an anti-corrosion agent |
| 06/03/1990 | CA2001479A1 Protection of flue gas desulfurizers against corrosion |
| 05/23/1990 | CN1042410A Expansion lining in-row glass tubes type condenser |
| 05/16/1990 | EP0368487A1 Welded corrosion-resistant ferritic stainless steel tubing and a cathodically protected heat exchanger containing the same |
| 05/09/1990 | EP0367346A1 Distributor casing for heat exchangers with corrosion-proof lining |
| 05/02/1990 | EP0365815A1 Continuous on-stream monitoring of cooling tower water |
| 04/24/1990 | CA1268075A1 Closed food processing system and liquid adjustment apparatus for use therein |
| 04/17/1990 | US4916920 Rotor structure for juice cold temperature creamer |
| 04/11/1990 | EP0107705B1 Process for producing a slurry containing concentrated liquid and ice crystals and subassembly therefor |
| 03/28/1990 | EP0277171B1 Plate heat exchanger with threaded connection ports |
| 03/27/1990 | CA1267106A1 Electroplating the interior of a stream generator tube |