| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 01/22/2009 | US20090024253 Process controller having improved surge capacity control and related methodology |
| 01/21/2009 | EP2017686A2 Process controller having improved surge capacity control and related methodology |
| 01/21/2009 | CN201183971Y Household sewage water secondary utilizing apparatus |
| 01/21/2009 | CN101349923A Method for controlling thin belt continuous casting molten pool fluid level |
| 01/15/2009 | US20090013700 Refrigerating air conditioning system, method of controlling operation of refrigerating air conditioning system, and method of controlling amount of refrigerant in refrigerating air conditioning system |
| 01/14/2009 | CN201181426Y Water level self-controlling device |
| 01/14/2009 | CN201181425Y Fluid level control apparatus for pure water container |
| 01/14/2009 | CN201180290Y Household full-automatic water-saving system |
| 01/14/2009 | CN101344764A Oil-water separation automatic measurement and control system of multi-purpose station free water remover |
| 01/14/2009 | CN100451250C Diaphragm pump and tap water combined water saving system |
| 01/07/2009 | CN201177451Y Lever type material level instrument for furnace cupola feeding material controlled by PLC |
| 01/07/2009 | CN201176620Y Low current drain vacuum drainage method system |
| 01/07/2009 | CN201176615Y Novel energy-conserving closet |
| 01/07/2009 | CN201176608Y Waste water collecting and reusing device |
| 01/07/2009 | CN101338575A Civil water saving device |
| 01/07/2009 | CN101336821A Dish washer and its control method |
| 01/01/2009 | US20090005930 Level sensing and display system |
| 12/31/2008 | CN201174054Y Liquid level control apparatus |
| 12/31/2008 | CN201174053Y Liquid level metering control regulator |
| 12/31/2008 | CN201174045Y Liquid level automatic detection equipment |
| 12/31/2008 | CN201172841Y Civil automatic water storage tank used in countryside |
| 12/31/2008 | CN201171311Y Automatic water drinking device |
| 12/30/2008 | US7470406 Method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system |
| 12/24/2008 | EP1466223B1 Improved liquid level controller |
| 12/24/2008 | DE202008013084U1 Überfüllsicherungsvorrichtung für Behälterbatterien Überfüllsicherungsvorrichtung container for batteries |
| 12/24/2008 | CN201169806Y Family life water simple automatic reutilizing apparatus |
| 12/24/2008 | CN201169799Y Electronic full protection water tower automatic water-supply controller |
| 12/24/2008 | CN101328898A Submersible pump fluid level control system |
| 12/17/2008 | CN201166814Y Apparatus for automatically holding water tank water level |
| 12/17/2008 | CN201166486Y Microcomputer control full-automatic water feed system of solar energy water heater |
| 12/17/2008 | CN201165987Y Automatic drain device |
| 12/17/2008 | CN201165753Y Balance monitoring device of elevating scaffold |
| 12/17/2008 | CN101326412A Flash tank refrigerant control |
| 12/17/2008 | CN101325326A Method and apparatus for control of an electric power system in response to circuit abnormalities |
| 12/11/2008 | DE102007018164B3 Vorrichtung zur Regelung des Zuflusses einer Flüssigkeit in einen Behälter, insbesondere zur Zuflussregelung einer Wasseraufbereitungsanlage Apparatus for controlling the inflow of a liquid in a container, especially for ramp metering for water treatment plant |
| 12/10/2008 | CN201163208Y Improved structure of level detecting device of flooded evaporator |
| 12/10/2008 | CN201162254Y Filtering reclaimer for domestic wash water |
| 12/10/2008 | CN201162253Y Water saving device for shower cabinet |
| 12/10/2008 | CN201162251Y Simple domestic water-saving device |
| 12/10/2008 | CN201162028Y Fore-warmer tank |
| 12/10/2008 | CN101320273A Temperature controlling and water feeding method for solar water heater tank |
| 12/10/2008 | CN101319825A Automatic water feeding control device of solar water container |
| 12/10/2008 | CN101319510A Rainwater runoff control apparatus |
| 12/10/2008 | CN100442186C Combined material level controller |
| 12/10/2008 | CN100441788C Household saving and backwater device |
| 12/04/2008 | DE10109152B4 Vorrichtung zur Füllstandsregelung von Flüssigkeitsbehältern Device for level control of liquid containers |
| 12/03/2008 | CN201159858Y Liquid level controller |
| 12/03/2008 | CN201159857Y Automatic liquid level regulating device |
| 12/03/2008 | CN201158864Y Household water-saving control device |
| 12/03/2008 | CN201158842Y Device for reusing waste water and wastewater recycling closet with the same |
| 12/03/2008 | CN201158837Y Non-suction lift non-negative pressure supercharging and stabilizing water supply equipment |
| 12/03/2008 | CN100440665C Method and apparatus for control of an electric power distribution system in response to circuit abnormalities |
| 11/26/2008 | CN201156212Y Control circuit for water level controller |
| 11/26/2008 | CN201156189Y Automatic liquid supplying apparatus |
| 11/26/2008 | CN201155130Y Domestic sewage reusing device |
| 11/26/2008 | CN201155125Y Water tank |
| 11/26/2008 | CN201155124Y Water tank |
| 11/20/2008 | US20080283126 Condensate Drain for Compressed Air System |
| 11/19/2008 | EP1991504A1 Plant and method for water treatment by flocculation/settling using ballasted floc with final degritting of the sludge |
| 11/19/2008 | CN201152264Y Electronic automatic water regulator |
| 11/19/2008 | CN100435048C Solar energy and heat pump united heat collecting computer control system |
| 11/13/2008 | WO2008136804A1 Agricultural automation system with field robot |
| 11/12/2008 | CN201148663Y Special water-saving control system for flushing feces urinal |
| 11/12/2008 | CN201148647Y Household reclaimed water system and apparatus used in the system |
| 11/12/2008 | CN201148645Y Family life waster water reuse apparatus |
| 11/12/2008 | CN201148635Y Forced stack pressure non-negative pressure water supply equipment |
| 11/12/2008 | CN100432110C Polyolefin production using high olefin concentration |
| 11/06/2008 | WO2004102045A3 Booster-powered valve system |
| 10/30/2008 | WO2008128494A1 Device for controlling the inflow of a fluid into a container, particularly for the inflow control of a water treatment system |
| 10/29/2008 | CN201142026Y Automatic control device for emulsified liquid collection |
| 10/29/2008 | CN201141708Y Integrated solar water feeding alarm |
| 10/29/2008 | CN201141281Y Rotary digging drill rig with slurry level automatic control device |
| 10/29/2008 | CN201141141Y Self-controlled water saving device for toilet and bathroom |
| 10/29/2008 | CN201140998Y High water level early-warning device of oxidation ditch |
| 10/23/2008 | WO2008125515A1 System for filling a vessel |
| 10/22/2008 | CN201138453Y Liquid level regulating apparatus |
| 10/22/2008 | CN201138452Y Cycle barrel with liquid level automatically controlled |
| 10/22/2008 | CN201137205Y Water saving toilet system with reclaimed water tank |
| 10/22/2008 | CN201137174Y Storey water saving system |
| 10/22/2008 | CN201137173Y Automatic water storing device |
| 10/22/2008 | CN201137172Y Water recovery system for shop fire-tuning |
| 10/22/2008 | CN100427887C Instantaneous overcurrent element for heavily saturated current in a power system |
| 10/21/2008 | US7438863 Storage zone; measurement vessel; pressure controllers; dispensing catalyst |
| 10/15/2008 | CN201134048Y Water-level control apparatus for boiler |
| 10/15/2008 | CN201134047Y Floating ball level controller |
| 10/15/2008 | CN201133006Y Flushing closet with self-control energy-conserving toilet and bathroom backrest |
| 10/15/2008 | CN201132982Y Reutilization device for packing waste water and pressurizing the water by deadweight |
| 10/15/2008 | CN201132980Y Domestic waste water utilize device by pressure energy of water supply |
| 10/15/2008 | CN201132976Y Can-type environmental protection intelligent feed-tank |
| 10/15/2008 | CN201132903Y Auto inlet device of washing machine |
| 10/15/2008 | CN101287653A Systems and methods for detecting fluids |
| 10/14/2008 | US7437216 Method for controlling a wind energy turbine of a wind park comprising multiple wind energy turbines |
| 10/14/2008 | CA2316337C Fluidic level control systems |
| 10/09/2008 | US20080247916 Reaction apparatus and reaction chip |
| 10/08/2008 | EP1978434A2 Installation for filling transport tanks with liquids |
| 10/08/2008 | CN201130329Y Apparatus for controlling material position for filling carbon element powder into container |
| 10/08/2008 | CN201128942Y Water saving device for household waste water flushing closestool |
| 10/08/2008 | CN201128927Y Automatic controller for water tank filling |
| 10/08/2008 | CN101280992A Refrigerator water and frost removing automatic block-resistant overflow alarming apparatus |
| 10/01/2008 | CN201126541Y Energy-saving automatic level controller |