Patents
Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688)
01/1988
01/28/1988DE3624400A1 Device for controlling a pump
01/13/1988CN87204160U Water lever auto-controllor of water tower
01/12/1988CA1231418A1 Programmable stepper for transducer controlled apparatus
12/1987
12/29/1987US4715398 Liquid level control
12/16/1987EP0249558A1 Automatic level control valve
12/10/1987DE3619318A1 Throughflow regulator
12/10/1987DE3619296A1 Device for automatically refilling a liquid container
12/05/1987CN86210228U Automatic water level monitor
11/1987
11/11/1987EP0244559A1 Apparatus for monitoring the ink supply in ink writing machines
11/11/1987CN86200757U Regulating instrument of liquid temp. and level
11/10/1987US4705936 Electronically controlled electric steam humidifier
11/10/1987US4705456 Control panel structure for a liquid pumping station
10/1987
10/31/1987CN86210161U Differential pressure type level controller for molten glass
10/20/1987US4700754 Arrangement for controlling the level of an ink container
10/20/1987US4700738 Liquid level controller
10/15/1987DE3711241A1 Eiskastenniveausensor Eiskastenniveausensor
10/13/1987CA1227987A1 Float valve control
09/1987
09/30/1987EP0239381A2 Vapor level control for vapor processing system
09/30/1987CN86203329U Electronic liquid level auto-controller
09/24/1987DE3607466A1 Pumpenaggregat mit einer niveauschalteinrichtung Pump unit with a level switch means
09/11/1987WO1987005367A1 Pump unit with a level regulator
08/1987
08/18/1987US4686718 Method and apparatus for automatically maintaining a predetermined desired level of water in a swimming pool, and the like
08/11/1987US4685158 Swimming pool control system
07/1987
07/08/1987CN86208434U Automatic water-level-controlling instrument for boiler
06/1987
06/30/1987US4676265 Vacuum pump drain device
06/30/1987CA1223498A1 Liquid level control device
06/17/1987CN86207559U Liquid level indicating and alarm device for liquid nitrogen container
06/11/1987DE3541752A1 Device for metering fluids, especially for gastronomic and domestic apparatuses
05/1987
05/19/1987US4665808 Coffee percolator
05/06/1987CN86207528U Multi-purpose automatic water-level control device
05/05/1987US4662390 Water level controller for a boiler
05/05/1987CA1221438A1 Method of an apparatus for monitoring changes in surface level of a material in a container
04/1987
04/30/1987DE3537789A1 Method and device for filling a container
04/29/1987CN86106975A Control device of the automobil air-condition system
04/28/1987US4660586 Liquid level control
04/08/1987EP0217605A2 Air conditioning system
04/08/1987CN85107062A Control of froth cell perfromance through the ues of differential bubbler tubes
04/02/1987DE3631846A1 Water separator for the fuel feed of an internal combustion engine
04/01/1987EP0216101A2 Pneumatic control device for a shut-off valve of a vacuum waste water conduit
03/1987
03/24/1987US4652802 Alternator circuit arrangement useful in liquid level control system
03/19/1987DE3620998A1 Device for the filling-level control of hot-gluing systems
03/17/1987US4649968 Automatic precision liquid loading control system
03/17/1987US4649898 Apparatus for controlling condensate level in steam retort
03/03/1987US4646796 Liquid level sensing apparatus
02/1987
02/10/1987US4642777 Method and apparatus for microwave determination of liquid rate-of-rise using Doppler detection
01/1987
01/20/1987US4637424 Probeless fluid level controller
01/14/1987EP0208377A1 Device for controlling the filling level of an ink cartridge
01/14/1987CN86203386U 水位控制器 Water Level Controller
12/1986
12/30/1986CA1215812A1 Process and apparatus for controlling a continuous casting plant
12/23/1986US4631001 T-fitting with one way valve and water level sensor for a sump apparatus
12/16/1986US4629420 Vapor level control for vapor processing system
11/1986
11/18/1986US4622988 Liquid replenishing apparatus
11/18/1986CA1214017A1 Digital flow regulation for liquid-level control
11/12/1986CN85103333A Self-fill system
11/11/1986US4621657 Automatic water level monitoring system
11/04/1986US4620441 Liquid level control
10/1986
10/07/1986US4615351 Method of and apparatus for monitoring the surface level of material in a vessel
09/1986
09/23/1986US4612949 Apparatus for controlling water level
08/1986
08/27/1986EP0192566A1 Process and device for ensuring the transfer of a fluid containing an explosive component
08/26/1986US4607681 Process and apparatus for controlling a continuous casting plant
08/26/1986CA1210243A1 Raw material supply device
08/20/1986CN85202432U Suspended automatic liquid level-controlling unit
08/13/1986CN85201964U Predetermined position of fluid level controlling system
08/12/1986US4605038 Float valve control
08/05/1986US4604681 Feedback control method and system having variable deadband
08/05/1986US4603666 Device for maintaining a constant oil level
07/1986
07/15/1986US4600844 Liquid level control apparatus
07/02/1986EP0186116A2 Liquid level control
06/1986
06/24/1986US4597048 Digital flow regulation of liquid-level control for a continuous casting mold
06/04/1986EP0182840A1 Level regulator
05/1986
05/10/1986CN85105992A Photoelectric controller of water feeding for boiler
04/1986
04/09/1986EP0176576A1 Automatic water level monitoring system
03/1986
03/26/1986EP0175082A2 Circuit arrangement for the controlled filling and refilling of a tank with liquids
03/12/1986EP0173823A2 Circuit arrangement for controlled filling up and refilling of containers with liquids
03/11/1986US4574849 Apparatus and method for controlling supply of articles
03/04/1986US4573489 Dump valve
02/1986
02/12/1986CN85201649U Simple automatic level holder
02/04/1986US4567935 Molten metal level control in continuous casting
01/1986
01/08/1986CN85201237U Liquid level comtrol device for cryogenic liquid
01/07/1986US4563274 For waste paint solids in aqueous medium
01/07/1986US4562858 Programmable stepper for transducer controlled apparatus
01/07/1986CA1198960A1 Apparatus for regulation of gas feed for gas consumption
12/1985
12/27/1985EP0165493A2 Liquid replenishing apparatus
12/24/1985CA1198338A1 Liquid level control device
12/19/1985WO1985005703A1 Level regulator
12/18/1985EP0164831A2 Fluidic level control system
12/10/1985US4557719 Method and apparatus for the separation of media
12/04/1985EP0163365A1 Liquid level control device
11/1985
11/13/1985EP0161225A2 A device for maintaining a constant oil level
11/13/1985EP0161042A2 Self-fill system
11/05/1985US4551796 Liquid level control system for vapor generator
11/05/1985US4551068 Duplex pump controller
10/1985
10/24/1985WO1985004735A1 Automatic water level monitoring system
10/08/1985US4545801 Gaseous glass for preform
10/01/1985US4543973 Liquid level control apparatus and method
09/1985
09/10/1985US4540016 Flow-control system with pressure-responsive valve
08/1985
08/14/1985EP0151200A1 Raw material supply device
08/07/1985EP0150670A2 Method and apparatus for measuring and controlling the level of molten metal
07/1985
07/23/1985US4530372 Liquid level controller
07/09/1985US4527593 Apparatus and system for filling one or more containers with a liquid to a predetermined level
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