| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 03/05/2014 | CN203465605U Electrically controlled board of water purification machine |
| 03/05/2014 | CN203465604U Automatic control device for sewage-treatment reuse-water system |
| 03/05/2014 | CN203465603U Water level regulator |
| 03/05/2014 | CN103616901A Automatic water level control system for fire pool |
| 03/04/2014 | US8666684 Air conditioning system and method for calculating amount of filling refrigerants of the same |
| 03/04/2014 | CA2727878C Portable spa controller interface |
| 02/26/2014 | CN203455725U Low-cost zero-energy consumption pump pool liquid level automatic control device |
| 02/26/2014 | CN203455724U Liquid level controller |
| 02/26/2014 | CN203446380U Water level control device for tiger frog culture pond |
| 02/26/2014 | CN103605383A Washer control apparatus and control method thereof |
| 02/26/2014 | CN103605382A Automatic control device of powder height |
| 02/26/2014 | CN103605381A Dynamic matrix control optimization-based fractionating tower liquid-level controlling method |
| 02/26/2014 | CN102117079B Automatic digital water level control warner |
| 02/25/2014 | US8660706 SCADA unit |
| 02/19/2014 | CN203444353U Defoaming mechanism feeding and discharging control apparatus |
| 02/19/2014 | CN203444352U Fully-automatic electronic control water pumping device |
| 02/19/2014 | CN203444351U Automatic feed position detection control device |
| 02/19/2014 | CN203444350U Sand-blasting tank special material level switch |
| 02/19/2014 | CN203444349U Liquid level regulator |
| 02/19/2014 | CN203444348U Deoxygenator water level automatic regulating apparatus for cement kiln low-temperature waste heat power generation system |
| 02/19/2014 | CN203444347U Automatic measurement and control system of skidded three-phase separator |
| 02/19/2014 | CN203444346U Ball float liquid level controlling device |
| 02/19/2014 | CN203436059U Host machine of hydrotherapeutic energy blanket |
| 02/19/2014 | CN103597180A Device for measuring a quantity of a reducing agent, preferably NH3, contained in a vessel |
| 02/19/2014 | CN103592965A Titling and swinging body liquid level controller |
| 02/19/2014 | CN103592964A Liquid level automatic controller |
| 02/19/2014 | CN103592963A Pure direct-current magnetic control type liquid positioning controller and application of controller on solar water heater |
| 02/19/2014 | CN103592177A Fluid-solid coupling model test water level automatic control system |
| 02/19/2014 | CN103592004A Water tank liquid level detection equipment, water tank liquid level control system and vehicle |
| 02/18/2014 | US8655500 Method and system for reducing feeder circuit loss using demand response |
| 02/12/2014 | CN203433375U 智能无线供水控制器 Water Smart Wireless Controller |
| 02/12/2014 | CN203433374U Water level control device of curing room reservoir |
| 02/12/2014 | CN203433373U Automatic liquid level control system |
| 02/12/2014 | CN103576709A Automatic water feeding device for QUV accelerated aging instrument |
| 02/12/2014 | CN103576708A Circuit of control system based on ultrasonic precise electroplating device |
| 02/12/2014 | CN103576707A Liquid level controller suitable for various environments |
| 02/11/2014 | US8649883 Power distribution system and method |
| 02/11/2014 | US8647596 Systems and methods for managing emissions from an engine of a vehicle |
| 02/05/2014 | CN203422674U Water tower water volume automatic monitoring water storage controller |
| 02/05/2014 | CN203422673U Transformer gas relay intelligent air bleeder |
| 02/05/2014 | CN203422672U Double-floating-ball delayed water level controller |
| 02/05/2014 | CN203422636U Underground space safety monitoring controller |
| 02/05/2014 | CN103557906A Liquid level sensor and fish tank liquid level control device |
| 02/04/2014 | US8644999 Keep alive method for RFD devices |
| 02/04/2014 | US8644996 Positioner |
| 02/04/2014 | US8644993 Method of controlling the flow rate of the liquid by controlling operation of the pump |
| 01/29/2014 | CN203414831U Trace adding device control system with early warning function |
| 01/29/2014 | CN203414830U Water level regulating device |
| 01/29/2014 | CN203414829U Water level controller for factory reservoir |
| 01/29/2014 | CN203408680U Automatic control device for water content of mixed powder |
| 01/29/2014 | CN103543759A Liquid level alarm and control device |
| 01/29/2014 | CN103542653A Methods and apparatus for adjusting ice slab bridge thickness and initiate ice harvest following the freeze cycle |
| 01/28/2014 | US8639409 System for managing electrical power distribution between infrastructure and electric vehicles |
| 01/28/2014 | US8639391 Systems, devices, and methods for automation and energy management |
| 01/22/2014 | CN203405738U High-intensity magnet separator liquid level automatic control system |
| 01/22/2014 | CN203405737U Automatic water supply circuit |
| 01/22/2014 | CN203403393U Automatic flood discharging device for reservoir warning water level |
| 01/16/2014 | WO2014011648A1 Liquid level sensor system |
| 01/16/2014 | US20140018963 Adjustable weir for hydroelectric dam installations |
| 01/15/2014 | CN203397227U A water supplementing apparatus of a water generating tank |
| 01/15/2014 | CN203397226U Novel device for applying IH pump into self-absorption and automatic liquid level control of underground tank |
| 01/15/2014 | CN203397225U Industrial automatic water level controller based on time-base integrated chip |
| 01/15/2014 | CN203397224U A novel liquid level control apparatus and application thereof |
| 01/15/2014 | CN103513667A Novel liquid level controller structure |
| 01/09/2014 | WO2014005947A1 Device for determining a liquid level in a steam generator of a steam cooker, steam cooker having such a device, and method for determining a liquid level |
| 01/09/2014 | DE102011111175B4 Verfahren und Vorrichtung zur Flüssigkeits-Niveauregelung bei Durchlaufanlagen Method and apparatus for liquid level control in continuous flow systems |
| 01/08/2014 | CN203386075U Hydroponic type potted plant liquid level control system |
| 01/08/2014 | CN203386074U Curing agent feeding automatic control system |
| 01/08/2014 | CN203386073U Simple automatic subway draining control device |
| 01/08/2014 | CN103499981A Resistance type controller |
| 01/08/2014 | CN102426465B Entity model entrance adjusting device and adjusting method thereof |
| 01/07/2014 | US8626349 Method, a system, a computer-readable medium, and a power controlling apparatus for applying and distributing power |
| 01/07/2014 | US8626348 Methods and systems for community energy management |
| 01/07/2014 | US8626347 Demand side management module |
| 01/02/2014 | DE102013008626A1 Method for controlling filling level of coating liquid in collecting tray under chambered squeegee of printing machine, involves automatically controlling filling level by adaptive control based on principle of model reference control |
| 01/01/2014 | CN203376649U Liquid level automatic control device |
| 01/01/2014 | CN203376648U Liquid level control device |
| 01/01/2014 | CN203376647U Liquid level self-adjusting device |
| 01/01/2014 | CN203376308U Constant-flow-velocity automatic water supply device for automatic monitor |
| 01/01/2014 | CN103488201A Chemical liquid adding control system for external chemical liquid tank of high density interconnect circuit board etching machine |
| 01/01/2014 | CN103488200A Wireless water level control system and control method |
| 01/01/2014 | CN103488199A Device and method for controlling feeding and discharging of defoaming mechanism |
| 01/01/2014 | CN103488198A Automatic control system and method for water supply of aquaculture pond |
| 01/01/2014 | CN103488197A Flash liquid level automatic control device |
| 12/31/2013 | US8620482 Method of estimating the maximum power generation capacity and for controlling a specified power reserve of a single cycle or combined cycle gas turbine power plant, and a power generating system for use with said method |
| 12/31/2013 | US8620477 Control for pressurized bladder in a patient support apparatus |
| 12/25/2013 | CN203366144U Solution supplementing device of cyclic immersion corrosion test |
| 12/25/2013 | CN203366143U Automatic pumping integration protection circuit and apparatus thereof |
| 12/25/2013 | CN203366142U Fluid supply controller |
| 12/25/2013 | CN203366141U Trigger mechanism of water level switch |
| 12/25/2013 | CN203366140U Liquid-level alarm system for high water level of cabin bottom water |
| 12/24/2013 | DE102010019479B4 Verfahren zum Vorlegen einer Flüssigkeit und Vorlageeinrichtung zum Vorlegen einer Flüssigkeit Method for presenting a liquid and presentation means for presenting a liquid |
| 12/19/2013 | US20130333760 Waste water vessels with multiple valved chambers, and associated systems and methods |
| 12/18/2013 | CN203350732U Dam intelligent control system |
| 12/18/2013 | CN203350731U Flameproof double-circuit pump water level controller |
| 12/18/2013 | CN203350730U Liquid level control system of esterification EG pot |
| 12/18/2013 | CN203350729U Liquid level control system of first drainage receiver |
| 12/18/2013 | CN203350728U Liquid level control system of first drainage receiver used for material receiving of first drainage receiver |
| 12/18/2013 | CN203350727U Liquid level control system of second drainage receiver |
| 12/18/2013 | CN203349901U Novel slurry liquid level sensing device |