| Patents for F17D 1 - Pipe-line systems (8,074) |
|---|
| 11/27/1991 | CN1014924B Gas delivery system |
| 11/21/1991 | EP0456931A1 Coanda spiral flow device |
| 11/19/1991 | US5065794 Gas flow distribution system |
| 10/22/1991 | CA1290982C Method and apparatus for conveying a liquid |
| 10/08/1991 | US5055180 Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleansing storage vessels and pipelines |
| 10/08/1991 | CA1290159C2 Refrigerant expansion device with means for capturing condensed contaminants to prevent blockage |
| 09/24/1991 | CA1289497C Process for inhibiting formation of wax deposits |
| 09/19/1991 | CA2012452A1 Emergency water reserve system |
| 09/11/1991 | EP0446123A1 Temporary alternative connection installation between multiple fluid entries and exits |
| 09/11/1991 | EP0292521B1 Fluid system |
| 09/11/1991 | CN2084471U Liquid vacuum suction pot for paper making |
| 08/21/1991 | EP0442767A1 Method and apparatus for treating a natural gas |
| 08/20/1991 | US5040558 Low thermal stress steam distribution manifold |
| 08/19/1991 | CA2010300A1 Tower supported gas transmission line |
| 08/13/1991 | CA1287543C One-step process for transforming a water-in-oil emulsion into an oil-in-water emulsion |
| 08/07/1991 | CN2082350U Pneumatic thick liquid transporting device |
| 08/07/1991 | CN1053668A Storaging and filling system of liquefied petroleum gas |
| 08/06/1991 | US5036879 Pulsation dampener and flow check apparatus |
| 07/24/1991 | CN2081385U Sealed oil crane-type pipe under liquid |
| 07/23/1991 | US5033502 Apparatus for supplying a gas to a gas utilizing network |
| 07/17/1991 | CN1013220B Improved use of flow improvers |
| 07/10/1991 | CN1013149B Improved polymeric drag reducer landlength die |
| 07/03/1991 | EP0435711A1 Device for controlling the gas stream delivered by a container for pressure gas and gas feed system comfusing such a device |
| 07/02/1991 | US5027843 Injection of polymer |
| 07/02/1991 | US5027842 Process for commissioning pipelines |
| 06/04/1991 | US5020565 Water hammer absorber |
| 06/04/1991 | US5020561 Using fatty acid amine having amine polar group and hydrocarbon non-polar group |
| 06/04/1991 | CA1284610C Underwater cryogenic pipeline system |
| 05/22/1991 | EP0428237A1 Water hammer absorber |
| 05/21/1991 | US5017054 Delivery line for the conveying of viscous or pasty material |
| 05/15/1991 | CN1051418A Electro-mechanically integrated oil delivery pump station installation of petroleum pipeline |
| 04/23/1991 | US5009680 Method and a system for separating and transporting gas and liquid |
| 04/16/1991 | US5008035 Fluidization of heavy slurries |
| 04/10/1991 | EP0421815A1 Use of ultrasonic energy in the transfer of waxy crude oil |
| 04/10/1991 | EP0421743A2 Coolant supply apparatus for liquid-cooled electronic device |
| 04/07/1991 | CA2026485A1 Use of ultrasonic energy in the transfer of waxy crude oil |
| 04/03/1991 | CN1050388A Process for synthesising oil-soluble anti-drag agent |
| 04/02/1991 | US5003782 Gas expander based power plant system |
| 03/20/1991 | EP0417094A1 Method and apparatus for equalising of variations of density in a streaming fluid. |
| 03/05/1991 | US4997459 Safety |
| 02/27/1991 | EP0413788A1 Device for regulating and reducing a polyphasic flow, and its use |
| 02/12/1991 | US4991614 Method and a plant for transport of hydrocarbons over a long distance from an offshore source of hydrocarbons |
| 02/05/1991 | CA1279857C Joule-thomson apparatus with temperature sensitive annular expansion passageway |
| 01/30/1991 | EP0410522A2 Method and apparatus for preventing slug growth in a pipeline |
| 01/30/1991 | CN2070395U Ultrasound wave viscosity decreasing device for petroleum pipe |
| 01/26/1991 | CA2021796A1 Method and apparatus for preventing slug growth in a pipeline |
| 01/23/1991 | EP0409688A1 Process and installation for supplying gas to a gas distribution network |
| 01/23/1991 | CN2069963U Movable joint for oil and gas delivery pipe |
| 01/23/1991 | CN1048746A Multifunctional device for automatic bidirectional air-injection with stable pressure |
| 01/22/1991 | CA1279280C Choke cooling waxy oil |
| 01/16/1991 | EP0407600A1 Working liquid feeding apparatus for wire cut electric discharge machine |
| 01/09/1991 | CN2069064U Liquid ring forming device for transfering high viscous liquids |
| 01/08/1991 | US4982756 Transporting oil though a pipeline |
| 01/02/1991 | CN2068637U Gas transmission pipeline obstructiveless condensation apparatus |
| 01/02/1991 | CA1278493C Method and apparatus for transporting unprocessed well streams |
| 12/31/1990 | CA2019760A1 Pipeline transportation of heavy hydrocarbons |
| 12/28/1990 | WO1991000017A1 Phosphine fumigation method and apparatus |
| 12/25/1990 | US4979529 Valves |
| 12/13/1990 | WO1990015284A1 Gas distribution system for a dwelling |
| 11/28/1990 | CN2066545U Liquid double-way transporting device |
| 11/27/1990 | US4973775 Process for delaying the formation and/or reducing the agglomeration tendency of hydrates |
| 11/14/1990 | EP0397002A1 Process to improve the flow resistance decrease properties of high molecular polymer solutions in crude oil or refinery products |
| 11/14/1990 | CN2065717U Axial motion reducing device for boiler water pump |
| 11/14/1990 | CN2065713U Magnetic viscosity-reducing device for crude oil transmission |
| 11/13/1990 | CA1276210C Process for restarting core flow with very viscous oils after a long standstill period |
| 10/30/1990 | US4966307 Integrated multifunction regulator station for gas supply to a secondary mains |
| 10/30/1990 | CA1275573C Method and apparatus for increasing the operating efficiency of a liquid-flow machine |
| 10/16/1990 | US4963080 Rotary hydraulic vane machine with cam-urged fluid-biased vanes |
| 10/11/1990 | WO1990012350A1 Method for producing a heatable and refrigerable element for a system handling small quantities of liquid, and an element manufactured by the method |
| 09/25/1990 | US4958658 Mass flow stabilized |
| 09/25/1990 | CA1274399A1 Cogeneration of electricity and refrigeration by work expanding pipeline gas |
| 09/19/1990 | CN2062411U Acetylene safety bus bar |
| 09/18/1990 | CA1274089A1 Preparation of crude oil emulsions |
| 09/07/1990 | WO1990010167A1 Backflash interrupter |
| 09/06/1990 | DE3906891A1 Microbe-repelling piping |
| 08/29/1990 | EP0384335A1 Rotary hydraulic machine |
| 08/28/1990 | US4952738 Composition and method for friction loss reduction |
| 08/23/1990 | DE3903938A1 Verfahren zur entsorgung der gasrauminhalte von grossvolumigen behaeltern bei umweltbelastenden inhaltstoffen A method for disposal of the gas chamber contents of large-volume containers with polluting materials content |
| 08/22/1990 | CN1044849A Gas delivery system with a frequency-changeable speed-adjustable and constant-pressure driver |
| 08/21/1990 | US4949748 Backflash interrupter |
| 08/21/1990 | US4949743 Heating with ethoxylated nonylphenol-formaldehyde resin, surfactant and solvent |
| 08/14/1990 | US4948394 Introduction of a polar solvent and compression of gas-liquid mixture, separation and transportation |
| 08/11/1990 | WO1990009343A1 Process and device for evacuating the content of gas spaces of large containers containing pollutant substances |
| 08/11/1990 | CA2026665A1 Method and arrangement for the disposal of gas space contents of large-volume containers in the case of components which load the environment |
| 08/09/1990 | WO1990008585A1 Device for regulating and reducing a polyphasic flow, and its use |
| 08/07/1990 | US4945937 Dissolving; gelation inhibition |
| 08/01/1990 | EP0379594A1 Gas supply pipeline system for process equipment |
| 07/31/1990 | CA1272023A1 Pipeline transportation of coarse coal-liquid carbon dioxide slurry |
| 07/25/1990 | EP0378595A1 Fluid system |
| 07/18/1990 | EP0378428A2 Method and apparatus for thermodynamic cycle |
| 07/17/1990 | CA1271686A1 Device for damping pressure surges in pipelines, especially sanitary installations |
| 07/03/1990 | US4938173 Fluid system |
| 06/28/1990 | DE3843570A1 Damping device connected between the outlets of two sources of pressure medium |
| 06/26/1990 | US4937007 Process for inhibiting the deposit of paraffins in crude oils and petroleum sections utilizing N-substituted succinimide ethers |
| 06/20/1990 | CN1008470B Insert for insulated steam injection tubing |
| 06/14/1990 | WO1990006472A1 A method and a system for separating and transporting gas and liquid |
| 06/14/1990 | WO1990006202A1 Working liquid feeding apparatus for wire cut electric discharge machine |
| 06/13/1990 | EP0373155A2 Device for damping water hammers in pipes, especially in sanitary installations |
| 06/13/1990 | EP0371976A1 A method and a plant for transport of hydrocarbons over a long distance from an offshore source of hydrocarbons. |
| 06/13/1990 | CN1042979A Release valve for controlling the pressure-increasing rate and maximum pressure in pipe |