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