| Patents for F17D 3 - Arrangements for supervising or controlling working operations (4,120) |
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| 07/23/2009 | US20090183777 System and method for dynamic solenoid response adjust control |
| 07/16/2009 | US20090178714 Flow control system and method for multizone gas distribution |
| 07/15/2009 | CN201273455Y Water channel plate and waterway apparatus using the same |
| 07/15/2009 | CN201273454Y Swivel joint for gas delivery |
| 07/15/2009 | CN101482225A Draining apparatus for steam conduit |
| 07/14/2009 | US7561928 Method for the automatic optimization of a natural gas transport network |
| 07/11/2009 | CA2650104A1 Pipeline tool |
| 07/09/2009 | WO2009085866A2 Gas transport delay resolution for short etch recipes |
| 07/08/2009 | CN201269407Y Pressure regulation apparatus for ore slurry delivery high-pressure pipe |
| 07/07/2009 | CA2411214C Chemical injection system and method |
| 07/03/2009 | CA2648414A1 Continuous gas service restoration and meter change-out system |
| 07/01/2009 | CN201265748Y Electric regulation throttle |
| 07/01/2009 | CN100507343C Method and device for measuring exogenous linear sampling of pipe gas flow |
| 06/25/2009 | US20090159132 Method for operating a metering valve and device for performing the method |
| 06/24/2009 | CN100504142C Gas flow follow-up automatic odor-adding device |
| 06/23/2009 | US7549347 Multiple differential volume tube measurement quantitative conveying device and its conveying method thereof |
| 06/18/2009 | WO2009074653A1 Method of characterizing the rate of flow of a two-phase fluid |
| 06/17/2009 | CN201259087Y Supercharging device for pressure air terminal |
| 06/17/2009 | CN101457870A Self-draining arrangement and self-draining method |
| 06/17/2009 | CN100501219C Valve for sterily sampling a liquid sample from a container |
| 06/13/2009 | CA2614172A1 Fluid backup preventing system, and method of use thereof |
| 06/11/2009 | US20090145999 Method and Apparatus for Stratospheric and Space Structures |
| 06/10/2009 | CN201255304Y Quick joint water gas tank |
| 06/10/2009 | CN201255303Y Pressure-decreasing adjusting device for oil well pipeline along transmission |
| 06/10/2009 | CN101451652A Compressed-air pipe self-supercharging device and supercharging method thereof |
| 06/04/2009 | WO2009067769A1 System for locating pigs in single phase and multiphase fluid transport pipelines |
| 06/04/2009 | US20090139587 Device for actuating a process valve for use in foodstuffs technology |
| 06/03/2009 | CN201251018Y Energy conservation flow control device |
| 06/03/2009 | CN101446383A System and method for supervising gas engineering project |
| 05/27/2009 | CN201246788Y Coal gas-saving device |
| 05/27/2009 | CN101439212A Remote monitoring and metering management system for medical gas supply |
| 05/27/2009 | CN100491808C Double machine parallel oil and gas separator |
| 05/26/2009 | US7539560 Control valve and positioner diagnostics |
| 05/20/2009 | EP2059716A1 Controlled formation of hydrates |
| 05/20/2009 | CN201242040Y Pipe gas ultra- and under-pressure self-closing pressure regulating device |
| 05/20/2009 | CN201242038Y Pressure equalizing container with power pump |
| 05/20/2009 | CN100489372C Liquefied natural gas automatic pressure regulation and gasification and charging device |
| 05/14/2009 | US20090120517 Self regulating valve to obtain low differential air pressure control |
| 05/14/2009 | US20090120511 Standpipe direct float valve |
| 05/14/2009 | US20090120503 Valve for controlling the flow of steam and other fluids |
| 05/13/2009 | CN201237084Y Air supply automatic control device of nitrogen tank |
| 05/13/2009 | CN100487084C Fluid power type acoustic energy crude oil treating device |
| 05/07/2009 | WO2009058027A1 Method for handling of free water in cold oil or condensate pipelines |
| 05/06/2009 | CN201232853Y Gas supply control device |
| 05/06/2009 | CN100485250C Method for restraining gas hydrate in natural gas pipe line and device thereof |
| 04/30/2009 | WO2009055525A1 Method for remediating flow-restricting hydrate deposits in production systems |
| 04/30/2009 | WO2007027190A3 Hydrocarbonaceous material processing mehtods and apparatus |
| 04/30/2009 | CA2703173A1 Method for remediating flow-restricting hydrate deposits in production systems |
| 04/30/2009 | CA2631371A1 Compact manifolded fail-safe hydraulic control system |
| 04/29/2009 | CN201228855Y Novel environment protection noise deadener for air exhausting and steam exhausting pipe for electric power plant |
| 04/29/2009 | CN101419136A Adjustable pneumatic pulp pipe sampler |
| 04/29/2009 | CN101418913A Pressure priming device |
| 04/23/2009 | WO2007001866A3 Hand cleanliness |
| 04/23/2009 | DE102007043888A1 Medium e.g. electricity, supplying device for consumer in e.g. hospital, has extraction points connected with supply device by communication transmission device, which controls supply at extraction points in extraction and/or feed side |
| 04/23/2009 | CA2641492A1 Heated pipe and methods of transporting viscous fluid |
| 04/22/2009 | CN201225515Y Drainage device of steam heating system |
| 04/22/2009 | CN201225513Y High temperature viscous liquid conveyer |
| 04/22/2009 | CN101413626A Balance hole plate |
| 04/16/2009 | US20090095468 Method and apparatus for determining a parameter at an inflow control device in a well |
| 04/16/2009 | US20090095356 Method and apparatus for conserving water |
| 04/16/2009 | US20090095351 Pipeline additive control device and method |
| 04/16/2009 | US20090094740 Automatic water faucet built-in with hot and cold water control valve |
| 04/15/2009 | CN201221678Y Movable wind package |
| 04/15/2009 | CN201221677Y Pressure regulating device with ultra-low pressure cut-off valve |
| 04/15/2009 | CN201221676Y Gas high pressure regulating machine applied to pressure regulating station |
| 04/15/2009 | CN101408280A Slug catching system |
| 04/15/2009 | CN101408279A Method and system for determining the direction of fluid flow |
| 04/15/2009 | CN101408278A Liquid continuous quantitative uniform adding apparatus |
| 04/15/2009 | CN100478608C Gas dewatering and steam dewatering union automatic apparatus |
| 04/08/2009 | EP1585946B1 Increased-accuracy gas energy meter |
| 04/08/2009 | CN201218426Y Anti-leakage coal gas drainer |
| 04/08/2009 | CN201218425Y Heat preservation steam pipe isolation type coal gas drainer |
| 04/08/2009 | CN201218424Y Two-stage gas pressure regulator |
| 04/08/2009 | CN201218421Y Enclosed oil well relay oil transportation system |
| 04/08/2009 | CN201218418Y Intelligent biogas filling system |
| 04/08/2009 | CN100477090C Process apparatus and transportation system thereof, and method for protecting pressure control valve |
| 04/01/2009 | CN101398129A High precision flow automatic balance device |
| 03/19/2009 | US20090071544 Fluid conditioning and mixing apparatus and method for using same |
| 03/18/2009 | EP1694969B1 Transporting fluids through a conduit |
| 03/18/2009 | CN201209766Y Gas adjuster with indication |
| 03/18/2009 | CN101389866A An industrial process efficiency method and system |
| 03/12/2009 | US20090065743 Fluidized beds, sizing of fluidized medium inlet holes and methods of fluidizing |
| 03/12/2009 | US20090065064 Compressor tip gap flow control using plasma actuators |
| 03/11/2009 | CN101382236A Fluid multi-pipeline collecting transmission and distribution control system and control method |
| 03/11/2009 | CN100467935C Urban heating direct-buried steam pipeline fitting integrated shaft |
| 03/04/2009 | CN201202973Y Oil and gas separated dosing apparatus |
| 03/03/2009 | US7499761 Variable function voting solenoid-operated valve apparatus having air-to-move valve actuators and testing method therefor |
| 02/25/2009 | CN201198959Y Liquid discharging device of steam conveying pipeline |
| 02/25/2009 | CN101373040A Living water operation chucking tool and its use method |
| 02/18/2009 | CN201196610Y Fluid sampling detection instrument |
| 02/18/2009 | CN201196341Y Anti-leakage intelligent coal gas drainer |
| 02/18/2009 | CN201196340Y Gas pressure regulator |
| 02/18/2009 | CN201196339Y Valve rod balancing mechanism of gas pressure regulator |
| 02/18/2009 | CN101368668A Multifunctional well draining device |
| 02/18/2009 | CN101368667A Swivel joint for gas delivery |
| 02/12/2009 | US20090038685 Fluid delivery device |
| 02/12/2009 | DE102007037118A1 Concentrated transport medium discharge sequence reducing arrangement for transportation of liquid and gas i.e. carbon dioxide, is equipped with pipeline and ensures low hazard to persons, animals and devices by reducing discharge rate |
| 02/11/2009 | CN101363573A Vehicle fluid change apparatus and method |
| 02/10/2009 | CA2373100C Optimised scraper for a conduit |
| 02/05/2009 | US20090033692 Method and system for dispensing liquid |