| Patents for F16L 53 - Heating or cooling pipes or pipe systems (2,134) |
|---|
| 10/23/2001 | US6307191 Microwave heating system for gas hydrate removal or inhibition in a hydrocarbon pipeline |
| 10/23/2001 | US6305423 Thermoplastic or thermoset pipes including conductive textile reinforcements for heating and leak detection purposes |
| 10/03/2001 | CN2451861Y Internal heating device for pipeline |
| 09/25/2001 | US6293301 Backflow prevention device enclosure having improved access |
| 09/18/2001 | US6292627 Electrical heating of pipelines with pipe-in-pipe and mid-line connector |
| 09/06/2001 | US20010018926 Enhanced features for backflow prevention device enclosure |
| 08/23/2001 | WO2001061262A1 Heat exchange systems |
| 08/22/2001 | EP1125810A1 Heatable pipe for a hydraulic brake device |
| 08/21/2001 | US6278096 Fabrication and repair of electrically insulated flowliness by induction heating |
| 08/21/2001 | US6278095 Induction heating for short segments of pipeline systems |
| 08/07/2001 | CA2230541C Thawing tube guide for a culvert |
| 08/02/2001 | WO2001054840A2 Method of linking steel tubes with aluminum ribs |
| 07/31/2001 | US6267172 Heat exchange systems |
| 07/24/2001 | US6264401 Method for enhancing the flow of heavy crudes through subsea pipelines |
| 07/12/2001 | WO2001050819A1 Microwave heating system for gas hydrate removal or inhibition in a hydrocarbon pipeline |
| 06/28/2001 | US20010005646 Re-connectable pipeline connection for direct heating system |
| 06/27/2001 | CN2436761Y Non-metal electric heating fabric thermal tracing tube |
| 06/07/2001 | WO2001040722A1 Refrigeration device |
| 06/07/2001 | DE19957807A1 Kältegerät The refrigerator |
| 05/15/2001 | US6231313 De-icing system |
| 05/09/2001 | CN2429780Y Pipe heat collector for water sleeve heating furnace in oil field |
| 05/08/2001 | US6227575 Apparatus for the connection of line sections |
| 04/26/2001 | DE19950338A1 Volume mass flow stabilized hot water circulation network bridge has inlet and outlet primary couplings, and outlet and inlet secondary couplings, and secondary delivery pipe with outlet connection and secondary return pipe with inlet |
| 04/18/2001 | CN1292074A Heat insulating device and method for insulating at least a submarine pipeline at great depth |
| 03/27/2001 | US6206030 Insulating cover for water backflow prevention apparatus |
| 03/14/2001 | EP1082878A1 Heating sleeve for pipes |
| 03/08/2001 | WO2001016515A1 Production/injection line and methods relating to same |
| 01/31/2001 | CN2417361Y Electric heating device |
| 01/17/2001 | CN2415236Y PTC pipeline defroster |
| 01/17/2001 | CN2415235Y Heating thermal insulation petroleum pipeline |
| 01/02/2001 | US6167883 Medical air hose internal flow heater |
| 12/26/2000 | US6164307 Non-circulating, rapid, hot tap water apparatus and method |
| 12/13/2000 | EP1058800A1 Heat insulating device and method for insulating at least a submarine pipeline at great depth |
| 12/12/2000 | US6158231 Temperature regulating system employing thermostatic switching devices to assure safe operation of the system in both hazardous and non-hazardous applications |
| 11/07/2000 | US6142707 Direct electric pipeline heating |
| 11/07/2000 | US6141972 Invasive cryogenic tool and method for freezing the content of a pipe |
| 10/25/2000 | CN1271071A Pipe cooler |
| 10/03/2000 | US6128439 Hot pipe coupling means for joining together two segments of pipe |
| 10/03/2000 | US6125880 Mass flow (volume flow) stabilized circulation network |
| 09/27/2000 | CN2398220Y Thermal insulation device for liquid container and pipe |
| 08/16/2000 | EP0840868B1 Pipe coating and pipe with this coating |
| 07/20/2000 | WO2000022329A3 Pipeline with waterproof insulation and sealant and method of repairing the pipeline |
| 07/19/2000 | EP1019275A1 Hydraulic automobile brake system |
| 07/13/2000 | WO2000040886A1 Heat insulating device and method for insulating at least a submarine pipeline at great depth |
| 07/12/2000 | CN1054424C Pipe type solar energy collector |
| 07/05/2000 | CN1259196A Device for connecting pipe sections |
| 07/04/2000 | US6082409 Thawing tube guide for a culvert |
| 06/06/2000 | US6070615 Leakproof and fireproof tubing |
| 05/30/2000 | US6069997 Hot pipe and apparatus for producing same |
| 04/20/2000 | WO2000022329A2 Pipeline with waterproof insulation and sealant and method of repairing the pipeline |
| 04/12/2000 | EP0991891A1 Device for connecting pipe sections |
| 04/11/2000 | US6049657 Marine pipeline heated with alternating current |
| 03/30/2000 | DE19844485A1 Heatable pipe line for a hydraulic braking unit, in particular, for motor vehicles comprises a first cover element accommodating heater leads running in the direction of the pipe line axis |
| 03/29/2000 | EP0988486A1 Flange connection |
| 02/24/2000 | WO2000009924A1 Cold fluid transportation equipment |
| 02/22/2000 | US6026839 Process for the transport of molten sulphur and transport apparatus therefor |
| 02/08/2000 | US6021804 Cover for protecting piping assemblies |
| 12/29/1999 | CN2356208Y Electric heater for pipeline |
| 12/09/1999 | DE19823506A1 Heizmanschette für Rohre Heating sleeve for pipes |
| 12/07/1999 | US5996611 Enhanced features for backflow prevention device cover |
| 12/02/1999 | WO1999062300A1 Heating sleeve for pipes |
| 10/13/1999 | CN2343456Y Magnetizing electric heater for crude oil gathering and transportation pipeline |
| 09/05/1999 | CA2264404A1 Water valve assembly and water draining method |
| 08/03/1999 | US5933574 Heated fluid conduit |
| 07/14/1999 | CN1222948A Heated offshore pipeline and method of manufacturing |
| 06/08/1999 | US5910266 Helical electrical heater |
| 06/02/1999 | CN2322019Y Low-temp. heater for petroleum transferring pipeline |
| 04/08/1999 | WO1999016651A1 Hydraulic automobile brake system |
| 04/08/1999 | DE19754163A1 Hydraulische Kraftfahrzeug-Bremsanlage Motor vehicle hydraulic brake system |
| 03/31/1999 | CN2312399Y Device for heating pipeline using skin current |
| 02/10/1999 | EP0896183A1 Temperature conditioned deformable coupling member |
| 01/27/1999 | CN2305541Y Winding single core cable heating device for underground oil steel pipe |
| 01/19/1999 | US5862303 Electrically heated pipe with helically wound amorphous alloy heater |
| 01/12/1999 | US5859953 Electric heating apparatus for deicing pipes utilizing flexible heated hose inserted into pipe |
| 01/07/1999 | WO1999000620A1 Device for connecting pipe sections |
| 12/30/1998 | CN1203335A Method for transporting molten sulphur and its correlative transporting equipment |
| 12/29/1998 | US5853198 Thermal attachment device |
| 12/29/1998 | US5853031 Insulating and fixation system of steam tracers in fluid transportation pipings |
| 12/17/1998 | WO1998057088A1 Flange connection |
| 12/17/1998 | DE19724323A1 Flanschverbindung Flange |
| 12/02/1998 | EP0881860A2 Helical electrical heater |
| 11/28/1998 | CA2238591A1 Helical electrical heater |
| 11/11/1998 | EP0877197A2 Method for transportation of molten sulfur and transport system therefor |
| 11/10/1998 | CA2236902A1 Process for the transport of molten sulphur and transport apparatus therefor |
| 10/08/1998 | CA2202111A1 Gas powered heating system |
| 08/19/1998 | CN1190713A Arrangment in pipe bundle |
| 08/12/1998 | CN2287695Y Micro electric heating temperature controller |
| 08/11/1998 | US5791377 Electrically heated conduit |
| 07/15/1998 | CN2286240Y Electric cable protector in heating rod |
| 05/13/1998 | EP0840868A1 Pipe coating |
| 04/29/1998 | EP0838127A2 Flexible insulated heater |
| 04/28/1998 | US5743289 For protecting a fluid conveying device in fluid communication with valves |
| 04/21/1998 | US5740832 Elevated cover for backflow prevention device |
| 04/15/1998 | CN2278766Y Energy-saving electric heater for oil well oil transportation pipeline |
| 02/03/1998 | US5714738 Apparatus and methods of making and using heater apparatus for heating an object having two-dimensional or three-dimensional curvature |
| 01/06/1998 | CA2049906C Coupling device for pipeline heating system |
| 11/26/1997 | CN2268829Y Automatic temperature controlling electric heating film for pipelines |
| 10/02/1997 | WO1997036063A1 Heated offshore pipeline and method of manufacturing |
| 06/26/1997 | DE19547881A1 Structural component with limiting surfaces |
| 06/24/1997 | US5640951 Humidifier conduit |