| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 10/09/2013 | CN103344301A Powdery material level detection and control circuit |
| 10/09/2013 | CN102176170B Compensation control method of flotation cell liquid level automatic control device |
| 10/08/2013 | US8554386 System and method for self-powered communications networks |
| 10/02/2013 | CN203224787U Warehouse stock monitoring device |
| 10/02/2013 | CN103336538A Liquid level control system of water purification device |
| 10/02/2013 | CN103336537A Trigger mechanism of water level switch |
| 09/25/2013 | EP2642258A1 Tank overflow protection system and method |
| 09/25/2013 | CN203217386U Fish tank remote intelligent control system based on single chip microcomputer |
| 09/25/2013 | CN203217385U Administration apparatus used for drainage type ore dressing |
| 09/25/2013 | CN203217384U Quantitative sample adding device |
| 09/25/2013 | CN203212411U Wastewater recycling device for emulsion explosives |
| 09/25/2013 | CN103324210A Double-floating-ball delayed water level controller |
| 09/25/2013 | CN102419602B Water level control method for ultrasonic test on central holes of main bolts for nuclear power stations |
| 09/25/2013 | CN102172202B Device for automatically controlling irrigation and water draining of paddy field |
| 09/24/2013 | US8543251 Centralized fine grade control of device energy consumption |
| 09/24/2013 | US8543248 System for managing energy at loads |
| 09/19/2013 | DE102013204632A1 Beweglicher Körper Portable Body |
| 09/18/2013 | CN203204458U Machinery automatic water feeding controller |
| 09/18/2013 | CN203204457U Combined deodorization tower liquid level control mechanism |
| 09/18/2013 | CN203195430U Soya-bean milk machine |
| 09/18/2013 | CN103309366A City pipeline liquid level detection system based on wireless transmission |
| 09/18/2013 | CN103309365A Liquid level limiter device |
| 09/17/2013 | US8538591 Fuel management system and method |
| 09/11/2013 | CN203191840U Automatic water-level control device for civil water tower |
| 09/11/2013 | CN203191839U Centralized water supply remote monitoring device for high-level reservoir |
| 09/11/2013 | CN203191838U Elisa liquid feeding bottle detection device |
| 09/11/2013 | CN203191837U Agricultural automatic water supply device |
| 09/11/2013 | CN203191836U Multi-water-level control circuit for water tank |
| 09/11/2013 | CN203191835U Property intelligent control system of residential district |
| 09/11/2013 | CN203191834U Water pump water level controller |
| 09/11/2013 | CN203191833U Ball float water pump water level controller |
| 09/11/2013 | CN203191832U Floating ball level controller for water pump |
| 09/11/2013 | CN103294072A Automatic sewer system with alarm |
| 09/11/2013 | CN102508501B Automatic regulation control system and method for deaerator liquid level of thermal generator set |
| 09/10/2013 | US8532837 Household appliance |
| 09/10/2013 | US8532834 Method for integrating controls for captive power generation facilities with controls for metallurgical facilities |
| 09/05/2013 | DE102012003956A1 Throttling device for outlet opening in liquid memory space for effluent retention basin, has stationary pressure and stationary tension springs that are cooperated with double-armed lever using lift force of float against spring force |
| 09/04/2013 | CN203178823U Liquid level height control device |
| 09/04/2013 | CN203178822U Automatic water level display controlling device |
| 09/04/2013 | CN203178821U Water-saving type density control liquid discharge device |
| 09/04/2013 | CN203178820U Embedded liquid level monitoring device based on ARM |
| 09/04/2013 | CN203178819U Four capacity water tank liquid level controller based on phase plane method |
| 09/04/2013 | CN103279142A Load test intelligent control water tank loading method |
| 09/04/2013 | CN103279141A Probe-type electronic switch |
| 09/04/2013 | CN101657620B Turbocharger with adjustable throat |
| 09/03/2013 | US8527107 Method and apparatus for effecting controlled restart of electrical servcie with a utility service area |
| 09/03/2013 | US8525692 Techniques for limiting demand from an electricity meter with an installed relay |
| 08/29/2013 | DE102012003840A1 Device for overflow protection in oil sumps of internal combustion engines of motor vehicles, has switches controlled by single float, which closes former switch in lower minimum position and opens in upper maximum position of filling level |
| 08/28/2013 | CN203165340U Flow control experimental device with lagging |
| 08/28/2013 | CN203164779U An acid pit pollution discharge control device |
| 08/28/2013 | CN103266658A Urban shock-resisting waterlogging-preventing rainfall flood management system |
| 08/28/2013 | CN103266183A Cane juice transit container and method |
| 08/27/2013 | US8517043 Pressure build economizer valve |
| 08/27/2013 | DE202013103703U1 Niveauschalter-Regler mit an einem Schaft befestigten Schwimmkörpern Level switch controller with attached to a shaft floats |
| 08/22/2013 | WO2013122677A1 Apparatus and method for liquid level measurement in electrolytic cells |
| 08/22/2013 | US20130213502 Fluid Delivery Device |
| 08/21/2013 | CN203149418U Automatic water supply system |
| 08/21/2013 | CN203149417U Accurate control instrument for liquid level height |
| 08/21/2013 | CN203149416U Sewage pool water decanter water-decanting control device |
| 08/21/2013 | CN203149415U Water level automatic controller |
| 08/21/2013 | CN102345473B Mine intrinsic safety type automatic drainage and measurement and control protection device |
| 08/21/2013 | CN102323830B Superthin water level control device for water dispenser and water boiler |
| 08/20/2013 | US8515588 Generator reserve capacity control system and network |
| 08/20/2013 | US8515561 Control and protection system of converter valve operation test equipment |
| 08/14/2013 | CN203133619U Ball float-type liquid level controller |
| 08/14/2013 | CN203132770U Oil level adjusting and oil pressure measuring device of gearbox |
| 08/14/2013 | CN203129098U River sluice water level monitoring system |
| 08/14/2013 | CN103246296A Oil tank liquid level device of diesel engine |
| 08/14/2013 | CN102515289B Purifier water outlet control system |
| 08/13/2013 | US8509957 Power supply system |
| 08/13/2013 | US8509923 Methods for managing power consumption in a sensor network |
| 08/07/2013 | EP2621618A1 Device for the production of carbonated drinks |
| 08/07/2013 | CN203117803U Automatic inventory monitoring system |
| 08/07/2013 | CN203117802U Automatic overflowing resistant device of household water tank |
| 08/07/2013 | CN203117801U Safe automatic water supplement device capable of maintaining water storage tank dynamic constant water level |
| 08/07/2013 | CN203117800U Feed pot liquid level monitoring device |
| 08/07/2013 | CN203117799U Gate control device |
| 08/07/2013 | CN203117798U Water tower water level monitoring demonstration device |
| 08/07/2013 | CN203117797U Remote water-adding control device |
| 08/07/2013 | CN103235604A Non-contact sensing water level controller |
| 08/07/2013 | CN102541098B Electric liquid linear displacement servo system |
| 08/06/2013 | US8504215 Systems and methods for using alternate power sources to manage the power draw on a power grid |
| 08/01/2013 | WO2013110386A1 Method for controlling a flotation process for de-inking used paper |
| 08/01/2013 | US20130192680 Device and method for measuring the filling level |
| 07/31/2013 | CN203102027U Liquid level height control device |
| 07/31/2013 | CN203102026U Water level controller |
| 07/31/2013 | CN203102025U Fine adjustor structure for liquid height |
| 07/30/2013 | US8497029 Wetting resistant materials and articles made therewith |
| 07/25/2013 | WO2013108007A1 Valve assembly |
| 07/24/2013 | CN203084568U Pool overflow prevention controller |
| 07/24/2013 | CN203084567U Four-force-jointly-controlled bistable sinking ball liquid level controller |
| 07/24/2013 | CN203084566U Wireless water level controller |
| 07/24/2013 | CN203080680U City impact-resistant anti-waterlogging rainfall flood management system |
| 07/18/2013 | US20130184883 System and method to control subsystems |
| 07/17/2013 | CN203070119U Apparatus for automatically controlling liquid level of recovery pool |
| 07/17/2013 | CN203070118U Straight-through type large pot oil-water interface intelligent regulation and control system |
| 07/17/2013 | CN203070117U Horizontal type airtight container oil-water interface intelligent regulation and control system |
| 07/17/2013 | CN203070116U Pumping control circuit of water sterilization processor |
| 07/17/2013 | CN203070115U Condensation water automatic recovery system |
| 07/17/2013 | CN203069227U Conduction oil level alarming device for manufacturing lithium-ion battery electrode drying oven |