Patents
Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688)
11/1999
11/09/1999US5979478 Apparatus and method for treating water in a water supply system
10/1999
10/27/1999CN2345996Y Mechanical level meter
10/20/1999CN2344799Y Liquid filling machine controller
10/20/1999CN2344798Y Water level automatic controller for container
10/19/1999US5969619 Liquid level control system
10/19/1999US5966953 Water distribution and return control system for evaporative cooling pad installation
10/13/1999EP0949487A1 Floating switch capable of indicating the level of a high density liquid in a tank suitable to contain a low density liquid
10/13/1999CN2343611Y Auxiliary automatic controller for electric heating water distiller
10/13/1999CN1231721A Fuzzy logic liquid level control
10/06/1999CN2342399Y Pressure type water level automatic controller
09/1999
09/29/1999CN2341183Y Automatic water level controller
09/29/1999CN2341182Y Magnetically controlling level controller
09/22/1999CN1045219C 可编程序水位测控仪 Programmable Level Monitor
09/08/1999CN2337595Y Self-regulating liquid level controller
08/1999
08/25/1999CN2335178Y Container low liquid level alarm device
08/25/1999CN2335177Y 液位控制器 Level Controller
08/17/1999US5938985 Self-metering reservoir
08/11/1999CN2333021Y Bin interlocking controller
08/04/1999CN2331991Y Device for control of water intaking for high-rise water tank
07/1999
07/29/1999DE19805393C1 Device for measuring height of solder wave produced by solder pump
07/28/1999CN2331017Y Power connection paint liquid level control switch
07/22/1999WO1999036895A1 Liquid level control system
07/21/1999CN2330004Y Full-automatic water pumping controller for water storage tank
07/15/1999DE19900599A1 Procedure for soldering reflow or fusing side of workpiece
07/14/1999CN2329030Y Automatic controller for liquid level
07/13/1999US5922030 Method and system for controlling a solid product release mechanism
07/13/1999US5921428 Apparatus for reducing friction between two vessels
07/13/1999US5921272 Floater device for checking the liquefied gas filling level of cylinders or the like
07/13/1999US5921267 Water level control device
07/08/1999WO1999034269A1 Fluidic level control systems
07/07/1999CN2328042Y Mechanical level controller
06/1999
06/30/1999CN2326995Y Liquid-level controller
06/30/1999CN2326994Y Automatic regulating liquid-level controller
06/02/1999CN2322175Y Liquid level automatic controller
06/02/1999CN1218123A Water level control apparatus using piezo film sensor for washing machine
06/02/1999CN1218122A Water level control apparatus for washing machine
06/01/1999US5909352 Alternator circuit for use in a liquid level control system
06/01/1999US5908491 Air cleaner
05/1999
05/19/1999CN1043444C Method for regulating level of mixture of flowable material in container having outlet
05/12/1999CN2318659Y 电子液位控制器 Electronic level controller
05/11/1999US5901733 Valve for detecting liquid surface
05/05/1999CN2317495Y Alkali trough liquid lever height automatic controller
04/1999
04/29/1999WO1999020100A1 A liquid level control device
04/21/1999CN2315581Y Waste water treating pot for waste water treating equipment
04/07/1999CN2313238Y Water-level automatic-controller for water tank
04/06/1999US5891382 Recoating of stereolithographic layers
04/06/1999CA2167645C Pump control system
03/1999
03/24/1999CN2311792Y 自动水位控制器 Automatic Water Level Controller
03/24/1999CN2311791Y 电子水位控制器 Electronic Water Level Controller
03/11/1999WO1999011876A1 Device for controlling the filling of a bath tub and installation of same
03/10/1999EP0900345A1 A fill system control apparatus
03/09/1999US5878793 Refillable ampule and method re same
03/02/1999CA2155159C Reconfigurable fault control apparatus
02/1999
02/23/1999US5873357 Two piece humidifier for hot air furnace
02/17/1999CN2308104Y Water tower and electric motor automatic controller
02/10/1999CN2307307Y Automatic controlled water gauge for water supply
02/09/1999US5868154 Propane supply system with secondary containment tank
02/03/1999CN2306525Y Controller for filling and draining water
01/1999
01/27/1999CN2305660Y 液位控制器 Level Controller
01/27/1999CN1206133A Sealed float valve with guide code pipe
01/20/1999EP0891520A1 Fuzzy logic liquid level control
01/20/1999CN2304935Y Dual balancing level controlling box
01/06/1999CN2303328Y Non-float type liquid level controlling device
01/05/1999CA2109719C Hot water boiler system
12/1998
12/30/1998EP0887628A1 Fail-safe system
12/30/1998EP0887588A2 System for automatically refilling the boiler with water electrical appliances that employ steam
12/30/1998EP0887553A1 Submersible pump
12/17/1998WO1998038478A3 Self-metering reservoir
12/09/1998CN2300126Y 水位控制仪 Water level control device
11/1998
11/25/1998CN2298543Y Pressure/liquid numerical controlled instrument
11/18/1998EP0877897A1 Method and device for drawing condensate off from compressed-gas systems
11/18/1998CN2297718Y Liquid detecting controller
11/05/1998CA2236635A1 Apparatus and method for treating water in a water supply system
10/1998
10/28/1998CN2296031Y Automatic pump controller
10/21/1998CN2295240Y Automatic control capable of keeping water-level of basin
10/20/1998US5824228 Method and device for removal, within a closed reactor, of the phase of the lowest density from a biphase system with presence of interface
10/15/1998WO1998045641A1 Device and method for removing condensate from gas pressure systems
10/08/1998DE19714037A1 Vorrichtung und Verfahren zum Ableiten von Kondensat aus Druckgassystemen Apparatus and method for draining condensate from compressed gas systems
10/07/1998CN2293856Y Full-automatic water-feeding controller
10/07/1998CN2293855Y Liquid-level automatic controller
10/07/1998CN2293854Y Multi-purpose liquid-level automatic controller
09/1998
09/30/1998CN2293084Y Automatic liquid level controller for vacuum delivery
09/22/1998US5809795 Fuzzy logic liquid level control
09/16/1998CN2291682Y Liquid level automatic controller
09/08/1998US5803985 Water fill sensing for a dishwasher
09/03/1998WO1998038556A1 A method of regulating the level in a buffer tank
09/03/1998WO1998038478A2 Self-metering reservoir
09/02/1998CN2290077Y Liquid level isolator capable of breathing
08/1998
08/26/1998CN2289265Y Water level inductive controller
08/20/1998WO1998035897A1 Bulk materials loading device
08/20/1998DE19704671A1 Liquid level regulation device
08/20/1998CA2281633A1 Bulk materials loading device
08/19/1998CN2288466Y Water level photoelectric apparatus for dish washer
08/06/1998WO1998033599A1 System for supplying liquid to an apparatus in which a constant level is maintained
08/05/1998CN1039456C Constant level automatic liquid adding device
07/1998
07/29/1998EP0855634A1 Level control
07/15/1998EP0852676A2 Sanitary aseptic drain system
06/1998
06/30/1998US5771917 Sanitary aseptic drain system
06/30/1998US5771596 Container for liquids including a level control and a gyro compass
06/24/1998CN2284972Y Liquid level automatic controller
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