| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 01/06/2010 | CN201377048Y Soaking tank liquid charging device for desizing and hydrogen peroxide-bleaching combined machine |
| 01/05/2010 | US7643908 Occupant controlled energy management system and method for managing energy consumption in a multi-unit building |
| 12/30/2009 | EP2137585A1 System for filling a vessel |
| 12/30/2009 | CN201374012Y Intelligent integrated device for displaying and controlling liquid level |
| 12/30/2009 | CN201373528Y Water full protection device of water tank |
| 12/30/2009 | CN201373512Y Air conditioning device with water full protection function |
| 12/30/2009 | CN100576126C Multifunctional water level controller |
| 12/30/2009 | CN100575818C Heat pump system with assistant water heating |
| 12/16/2009 | CN201364502Y Electrode-type liquid level controller |
| 12/16/2009 | CN201364501Y Automatic water supply device of automatic vending machine for beverages |
| 12/16/2009 | CN201362873Y Household solar water-saving device |
| 12/16/2009 | CN101604168A Liquid level control display instrument and using method thereof |
| 12/16/2009 | CN101603780A Totally-enclosed recovery system for steam condensate |
| 12/16/2009 | CN101603259A Control system for slurry supplying of modular-structure quick-reaction slurry tank |
| 12/09/2009 | CN201359703Y Liquid level controller of drink mixer storage tank |
| 12/09/2009 | CN100567705C Flame-proof and safety type digitisation automatically drain system for mining |
| 12/03/2009 | WO2009144466A1 Sump monitoring method and apparatus |
| 12/02/2009 | CN100564710C Peculiar smell resisting backflow-proof waterpower self-controlling device |
| 11/26/2009 | US20090292572 Concrete Material Dispensing System |
| 11/26/2009 | US20090288598 Doctor blade supply system with intelligent viscosity logic |
| 11/25/2009 | CN201352320Y Improved oil sink liquid level control device for chemical fiber oiling system |
| 11/18/2009 | CN101581938A Water-level control circuit |
| 11/17/2009 | US7617691 Refrigeration system and method of operating the same |
| 11/11/2009 | CN201343749Y Family water-saving system |
| 11/11/2009 | CN101575863A Automatic device for recycling used water |
| 11/11/2009 | CN100558456C Liquid-discharging system and fractionating rectifying tower using same |
| 11/05/2009 | DE102004050169B4 Verfahren zur rechnerunterstützten Verfolgung von Materialchargen A method for computer-aided tracking of material batches |
| 11/04/2009 | CN201340552Y Automatic water level control device of water collection well of cable pit |
| 11/04/2009 | CN201340551Y Water level automatic water-pumping controller |
| 11/04/2009 | CN201340550Y Water level automatic control device of clean water tank |
| 10/28/2009 | EP1812294B1 Method and device for controlling a filling process when liquid or pasty products are filled into individual containers |
| 10/28/2009 | CN101566387A Water boiler with novel water level control device |
| 10/21/2009 | CN201331710Y Water tank level automatic controlling device of enameling machine |
| 10/21/2009 | CN201331709Y 自动水位控制仪 Automatic water level control device |
| 10/21/2009 | CN201331708Y 水位控制装置 Water level control device |
| 10/21/2009 | CN201330428Y Water level control mechanism |
| 10/21/2009 | CN101562254A Fuel supply device for fuel cell and fuel cell system using the same |
| 10/21/2009 | CN101561662A A process controller provided with improved surge capacity control and a relevant method |
| 10/21/2009 | CN101561186A Solar water heater |
| 10/21/2009 | CN101559829A Float-type water level regulator |
| 10/14/2009 | CN201327593Y Ultra-high-temperature impeding level switch |
| 10/14/2009 | CN201326213Y Water-saving toilet |
| 10/14/2009 | CN201326198Y Intelligent water cylinder |
| 10/14/2009 | CN100548893C Water purifier for drinking fountain |
| 10/07/2009 | EP1456533B1 Method and system for regulating the level of a dam |
| 10/07/2009 | CN201322879Y Liquid level automatic controller |
| 10/07/2009 | CN201322855Y Laser-location automatic feeding control system |
| 10/07/2009 | CN201322421Y Dehumidifier automatic drainage system |
| 10/07/2009 | CN201322377Y Solar energy heating water system for controlling liquid levels of double water tanks |
| 10/07/2009 | CN201321656Y Automatic control device for warning depth of ponding water of road and tunnel bridge and draining water |
| 10/07/2009 | CN201321641Y Automatic water-saving device |
| 10/07/2009 | CN101551677A Water level automatic control method |
| 09/30/2009 | CN201319147Y Water storage controller |
| 09/30/2009 | CN101546199A Automatic water-feeding controller |
| 09/23/2009 | EP1373840B1 Device for determining and/or monitoring a predetermined level in a container |
| 09/23/2009 | CN201315026Y 液位控制器 Level Controller |
| 09/23/2009 | CN201315025Y Electrical device for controlling water level |
| 09/23/2009 | CN201315024Y Automatic drainage control box |
| 09/23/2009 | CN101540388A Multifunctional liquid injection cap of lead acid storage battery for traction |
| 09/23/2009 | CN101539783A Automatic pumping controller |
| 09/23/2009 | CN101536877A Water dispenser liquid level control device |
| 09/17/2009 | DE102008012503A1 Water-level monitoring and/or detecting device for use in diesel fuel filter of diesel engine in motor vehicle, has electromagnetic valve integrated in water level sensor, and arranged between filling level tube and outlet of container |
| 09/16/2009 | EP2100651A1 Clarifier with drainage device |
| 09/16/2009 | CN100541377C High temperature, high pressure, antistatic type impeding level controller |
| 09/09/2009 | EP2098837A1 Method and device for filling a fluid tank |
| 09/09/2009 | CN201307247Y Float switch |
| 09/09/2009 | CN101526821A Intelligent control method for electrolyzed oxidizing water centralized supply system |
| 09/09/2009 | CN101526820A Multi-stage water level control structure for water storage cylinder of water purifier |
| 08/26/2009 | CN201298175Y Water level controlling switch device and water pump controller |
| 08/26/2009 | CN201298144Y 显影液自动添加系统 Developer is automatically added system |
| 08/26/2009 | CN201297789Y Automatic water level controller for solar water heater |
| 08/26/2009 | CN201296950Y Automatic water feeding device for water tank |
| 08/26/2009 | CN100534261C Plate fitted resin molded article and method of molding it |
| 08/26/2009 | CN100532745C Holding control device for rain-water drainage |
| 08/20/2009 | DE102008008346A1 Floor mounted or built-in type cooking device e.g. noodle cooker, for e.g. steaming of fish, has water inlet connected into feed valve, and control device in control connection with fluid level sensors and valve for fluid level regulation |
| 08/19/2009 | CN201293944Y Wireless water tower and water level controller |
| 08/19/2009 | CN201293130Y Control valve for adjusting water level of pond |
| 08/19/2009 | CN100529528C Method and apparatus for drum level control for drum-type boilers |
| 08/19/2009 | CN100529279C Classification-utilization water-saving method for domestic water and device for automatically controlling classification-utilization |
| 08/18/2009 | US7576449 Method for converting direct voltage into three-phase alternating voltage |
| 08/13/2009 | WO2009024204A3 Method and apparatus for determining a switching point for filling level regulation |
| 08/13/2009 | DE102008008637A1 Kondensationsdampfturbine mit Füllstandsfassungseinrichtung und Verfahren zur Regelung des Füllstandes Condensing steam turbine with level sensing device and method for regulating the level |
| 08/12/2009 | CN201289611Y Siphoning type liquid-level controller |
| 08/12/2009 | CN201288363Y Multifunctional sanitary installation combined cabinet |
| 08/12/2009 | CN101504549A Means for controlling water level |
| 08/12/2009 | CN100526535C Dyeing machine with automatic controller for water level |
| 08/11/2009 | US7572323 Fluid separating device |
| 08/05/2009 | CN201284304Y Hydraulic probe rod type charge level indicator for gas generating furnace |
| 08/05/2009 | CN201282919Y Drinking machine with video advertisement |
| 07/29/2009 | CN101495930A Non-contact type liquid level control apparatus |
| 07/29/2009 | CN100520659C Fluid level control measuring systems used for gas dynamic type pulse fluidic jet pump and method thereof |
| 07/21/2009 | US7565227 Multi-building control for demand response power usage control |
| 07/21/2009 | US7565224 Energy distribution network |
| 07/15/2009 | CN100514239C Liquid level water level automatic control system |
| 07/14/2009 | US7561392 Intrinsically safe data transmission device |
| 07/08/2009 | CN201270003Y Two-phase flow liquid level self-regulating apparatus |
| 07/07/2009 | US7556611 Extracorporeal blood processing apparatus with pump balancing |
| 06/24/2009 | CN201262712Y Automatic stop device for container liquid full |
| 06/18/2009 | US20090157229 Method and apparatus for plating solution analysis and control |
| 06/17/2009 | CN100501626C Liquid dosage delivery apparatus |