| Patents for F17D 1 - Pipe-line systems (8,074) |
|---|
| 06/12/1990 | CA1270178A1 Method and apparatus for dividing a single stream of liquid and vapor into multiple streams having similar vapor to liquid ratios |
| 05/30/1990 | EP0370874A1 Method and apparatus for pumping a petroleum fluid |
| 05/29/1990 | US4928719 Method and apparatus for preventing pulsations in a flowing fluid |
| 05/22/1990 | US4926582 Adding pour point depressant of ethylene-acrylonitrile copolymer or terpolymer; for pipeline flow |
| 05/17/1990 | DE3829726A1 Pilot-controlled pressure-shock auxiliary outlet valve |
| 05/17/1990 | DE3590605C1 Einrichtung zum Daempfen von Schwingungen in geschlossenen Fluessigkeitsfoerdersystemen Means for steaming oscillations in closed Fluessigkeitsfoerdersystemen |
| 05/16/1990 | CN1042227A Process for pumping multi-phase gas-liquid mixture by means of use of pump |
| 05/01/1990 | US4920749 Method of and means for producing electricity |
| 04/28/1990 | CA2001685A1 Process for pumping a multi-phase gas-liquid mixture by means of the use of a pump |
| 04/18/1990 | EP0364218A2 Method for reducing pressure drop in the transportation of drag reducer |
| 04/17/1990 | US4917576 Method and apparatus for conveying a liquid |
| 04/17/1990 | US4917136 Process gas supply piping system |
| 04/11/1990 | CN2055899U Pipeline system for corrosive fluid |
| 04/10/1990 | US4915176 Injecting an antiagglomerant to form a dispersion; petroleum oil and gas from ocean wells |
| 03/27/1990 | US4911204 Device for damping pressure surges in pipelines, especially sanitary installations |
| 03/27/1990 | CA1267056A1 Process for the transport of heavy oil |
| 03/14/1990 | EP0357953A1 Mixtures of organic ammonium salts and their use as drag-reducing agents |
| 02/13/1990 | US4899545 Method and apparatus for thermodynamic cycle |
| 01/30/1990 | US4897022 Multi-tank/multi-pump water pressure booster system |
| 01/25/1990 | WO1990000633A1 Gas supply pipeline system for process equipment |
| 01/17/1990 | CN1038832A Low pour crude oil compositions |
| 01/16/1990 | US4894069 Pumping |
| 12/28/1989 | WO1989012782A1 Fluid system |
| 12/20/1989 | EP0347124A1 Apparatus and method for maintaining a minimum temperature for liquids in pipes |
| 12/20/1989 | CN1038149A Integrated multifunction regulator station for gas supply to secondary mains |
| 12/19/1989 | US4887433 Liquefied gas transfer line having at least one bypass for the vapors of said gas |
| 12/06/1989 | EP0345008A1 Low pour crude oil compositions |
| 11/28/1989 | US4883943 Electric heater for fuel tank discharge opening coupling to prevent fuel waxing |
| 11/21/1989 | US4881566 Method for reducing pressure drop in the transportation of drag reducer |
| 11/02/1989 | WO1989010515A1 Pipeline for conveying a viscous or pasty filling material |
| 10/25/1989 | EP0338195A1 Pipeline for a viscous or a pasty filling material |
| 10/18/1989 | EP0337887A2 Integrated multipurpose expansion station for supplying a secondary gas distribution network |
| 09/26/1989 | CA1261735A1 Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleaningstorage vessels and pipelines |
| 09/26/1989 | CA1260759A1 Bi-phased fluid pump feeder device, and hydrocarbon production installation using said device |
| 09/06/1989 | EP0331295A1 Pipeline system to separate at least a two-phase fluid flow |
| 08/22/1989 | US4858640 Process for feeding gas stored in a cavern storage facility into a consumer network, and a layout for implementing such a process |
| 08/15/1989 | US4856593 Inhibition of hydrate formation |
| 08/02/1989 | EP0325873A1 Liquefied gas transfer line having at least one vapour derivation |
| 07/27/1989 | DE3843168A1 Device for checking the positive pressure of a medium |
| 07/18/1989 | US4848471 Method and apparatus for transporting unprocessed well streams |
| 07/12/1989 | EP0323775A1 Process to delay the formation and/or to reduce the tendency to agglomerate of hydrates |
| 07/12/1989 | EP0323774A1 Process to delay the formation and/or to reduce the tendency to agglomerate of hydrates |
| 07/05/1989 | EP0323307A1 Process for transporting a fluid which forms hydrates |
| 06/29/1989 | WO1989005940A1 Method and apparatus for equalising of variations of density in a streaming fluid |
| 06/27/1989 | US4842486 Method and apparatus for increasing the operating efficiency of a liquid-flow machine |
| 06/27/1989 | CA1256305A1 Methods of pumping and loading emulsion slurry blasting compositions |
| 06/21/1989 | EP0321085A2 Fuel delivery system heater |
| 06/15/1989 | DE3729981A1 Safety device with a guard valve |
| 06/07/1989 | CN2038990U Automatic control constant temp. filter for petroleum pipeline |
| 05/24/1989 | EP0178962B1 Method and apparatus for the compression and transportation of a gas comprising a liquid fraction |
| 05/16/1989 | US4830581 Apparatus for dispensing measured quantities of a liquid material |
| 04/27/1989 | DE3735081A1 Pressure-pulsation damper for flow media |
| 04/25/1989 | CA1253293A1 Polymeric additives effective for inhibiting paraffin deposition in crude oils |
| 04/18/1989 | US4821777 Device for damping pressure surges in pipelines, especially sanitary installations |
| 04/11/1989 | CA1252287A1 Method of drying long-distance pipelines in sections |
| 04/06/1989 | DE3722060A1 Safety valve protective system |
| 03/29/1989 | EP0309210A1 Inhibition of hydrate formation |
| 03/22/1989 | EP0308346A1 Process and installation for the use of high viscosity refinery waste oil |
| 03/15/1989 | EP0307003A2 Electromagnetic energy heating |
| 03/14/1989 | US4811652 Constant differential overpressure device |
| 03/08/1989 | CN1031597A Improved dissolution performance by injection through die-type nozzle |
| 03/08/1989 | CN1031596A Improved polymeric drag reducer landlength die |
| 03/01/1989 | CN2033469U D.c. electric heeting deblocking device |
| 02/23/1989 | WO1989001590A1 Pipeline transportation of natural or industrial aqueous slurries |
| 02/22/1989 | CN2033081U Hammered steel ring lock fast-opening blankoff flange |
| 02/22/1989 | CN1031274A Valve for limiting of the rate of flow |
| 01/31/1989 | US4801245 Method of damping surges in recirpocating compressors |
| 01/31/1989 | US4800921 Method and apparatus for dividing a single stream of liquid and vapor into multiple streams having similar vapor to liquid rations |
| 01/25/1989 | EP0300791A1 Water hammer absorber |
| 01/18/1989 | EP0299722A2 Improved dissolution performance by injection through a die- type nozzle |
| 01/18/1989 | EP0299721A2 Improved polymeric drag reducer performance by injection through a land-length die |
| 01/11/1989 | CN2030787U Skin current to heat cable |
| 12/29/1988 | WO1988010397A1 A method and a plant for transport of hydrocarbons over a long distance from an offshore source of hydrocarbons |
| 12/28/1988 | CA1247496A Apparatus for and a method of transferring liquid |
| 12/06/1988 | CA1245997A1 Use of flow improvers |
| 11/17/1988 | EP0290787A1 Damper element for pulsating liquid-flows |
| 11/15/1988 | US4783961 Natural gas pressure differential energy recovery system |
| 11/15/1988 | CA1244743A1 Method for transporting liquid substances by utilizing the potential energy of an operating fluid and liquid column machine for the implementation of the technique |
| 11/09/1988 | CN88200419U Liquid lifting and pouring box using negtive pressure |
| 11/08/1988 | US4783030 Apparatus for the mechanical decoupling of piping systems |
| 11/02/1988 | EP0289485A1 Circuit arrangement for limiting shock impact on hydraulic long distance pipelines |
| 11/01/1988 | US4781845 Hydrocarbon gellant |
| 11/01/1988 | US4781207 Emulsification with anionic surfactant |
| 10/20/1988 | EP0244400A4 Refrigeration from expansion of transmission pipeline gas. |
| 10/19/1988 | CN88212799U Household pipe gas supplementary device in case of stopping supply |
| 10/18/1988 | US4778586 Viscosity reduction processing at elevated pressure |
| 10/12/1988 | EP0286259A2 Multi-phase petroleum stream monitoring system |
| 10/11/1988 | CA1242952A1 Process for transportation of viscous crude oils |
| 09/29/1988 | DE3708535A1 Line system for cryogenic fluids |
| 09/20/1988 | US4771800 Solutions through orifices at the injection end |
| 09/13/1988 | US4770199 Process for transporting heavy oils |
| 09/07/1988 | WO1988006704A1 Cogeneration of electricity and refrigeration by work-expanding pipeline gas |
| 08/23/1988 | CA1240834A1 Arrangement in plant equipment for supplying a binding agent directly to a building element |
| 08/10/1988 | CN87101301A Heating cable with skin current |
| 08/04/1988 | EP0245360A4 Joule-thomson apparatus with temperature sensitive annular expansion passageway. |
| 08/02/1988 | US4760742 Multi-phase petroleum stream monitoring system and method |
| 07/27/1988 | CN87210839U Wind-force fume extractor |
| 07/27/1988 | CN87101289A Control device for intermittent outflow without mechanical parts |
| 07/20/1988 | EP0275173A1 Delivery and conditioning system for thermoplastic material |
| 07/19/1988 | US4758365 Polymeric additives useful for inhibition of the deposit of paraffins in crude oils |