| Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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| 11/25/1980 | US4235829 Vapor delivery system and method of maintaining a constant level of liquid therein |
| 10/28/1980 | US4230578 Sewage effluent volume control and alarm arrangement for pressurized sewage disposal system |
| 10/14/1980 | US4227565 Flow cut-off method and apparatus for foundry installations |
| 10/07/1980 | US4226278 Automatic molten metal surface level control system for continuous casting machines |
| 10/07/1980 | CA1087279A1 Time independent cycle control for plastic injection molding machines |
| 09/16/1980 | CA1085769A1 Sea water desalination apparatus |
| 09/02/1980 | US4220164 Tobacco distributor for cigarette rod making machines or the like |
| 08/19/1980 | US4217926 Thermally controlled oil storage reservoir for a transmission |
| 08/07/1980 | WO1980001572A1 Method of automatic control of molten metal bath level in cristallizers |
| 07/22/1980 | CA1082075A1 Apparatus for mixing cold and hot water, and for distributing the water mixture |
| 07/15/1980 | US4212590 Method and apparatus for the continuous regulation of rotary hydrodynamic pumps |
| 07/08/1980 | CA1081343A1 Float detecting device for pressurized slurry transfer apparatus |
| 06/10/1980 | US4207030 Apparatus for controlling liquid level in a reservoir |
| 06/10/1980 | CA1079382A1 Wood chip digester level control |
| 05/27/1980 | US4205237 Liquid level sensor, pump system means and circuit means |
| 05/13/1980 | US4202367 Circuit arrangement for regulating the level of liquid in vessels |
| 04/30/1980 | EP0010310A2 Liquid level control blocking valve |
| 04/01/1980 | US4195968 Liquid level control |
| 04/01/1980 | US4195652 Liquid level control for a transmission sump |
| 03/25/1980 | US4194526 Nozzle regulating device |
| 03/18/1980 | US4194077 Batch sensor for glass-melting furnaces |
| 03/11/1980 | CA1073541A1 Liquid level sensing circuit |
| 03/11/1980 | CA1073540A1 Teeming rate control in metal ingot making |
| 03/06/1980 | WO1980000382A1 Method and device for controlling a liquid level |
| 01/08/1980 | US4182363 Liquid level controller |
| 12/25/1979 | US4180083 System for controlling flow rate in pipelines |
| 12/25/1979 | CA1068799A Appliance programmer including a safety circuit |
| 12/18/1979 | US4179242 Method and apparatus for liquid supply |
| 10/30/1979 | CA1065440A1 Pump control |
| 10/23/1979 | US4171932 Liquid level sensor, pump system means and circuit means |
| 09/11/1979 | US4167163 Sensor monitoring apparatus |
| 09/04/1979 | US4166713 Auxiliary liquid tank |
| 08/22/1979 | EP0003703A1 Method and device for regulating the flow of evolutive pulps at the output of a tank |
| 04/17/1979 | US4149672 Apparatus for mixing cold and hot water, and for distributing the water mixture |
| 04/10/1979 | CA1052458A2 Sump pump system and pressure responsive switch assembly therefor |
| 03/21/1979 | EP0001188A1 Pressure transmitting device and a control or regulating system using it |
| 03/21/1979 | EP0001142A1 Controlling means for metal casting installations |
| 02/20/1979 | US4140143 Apparatus and method for continuously monitoring and controlling the level of tar in a settling tank |
| 02/13/1979 | US4139332 Pumping rate control method and apparatus for internal combustion engine driven pumps |
| 01/30/1979 | US4136721 Method and apparatus for transferring liquid from a storage container to a vessel in a controlled manner |
| 01/23/1979 | CA1047142A1 Liquid level control system |
| 01/16/1979 | CA1046461A1 Automatic discharge valve in liquid suspension separator for coal |
| 01/02/1979 | US4132259 Automatic control of the level of a molten metal bath |
| 11/14/1978 | US4125163 Method and system for controlling well bore fluid level relative to a down hole pump |
| 10/31/1978 | CA1041365A1 Dehydrated granular potato product and process for production of same |
| 10/24/1978 | CA1040832A1 Apparatus for controlling the level of the molten metal in a mold for continuous casing |
| 10/17/1978 | US4121094 System for detecting, indicating and regulating the level of semi-solid matter in a reservoir |
| 10/17/1978 | US4120611 Electronic device for automatically controlling the level of a liquid in a vat |
| 10/17/1978 | CA1040526A1 Method and apparatus for transferring liquid from a storage container to a vessel in a controlled manner |
| 09/26/1978 | US4116586 Constant fluid level control for machine reservoir |
| 08/22/1978 | US4109160 Control system for hydroelectric power station system |
| 08/08/1978 | US4105367 Liquid level sensing circuit |
| 07/11/1978 | US4099461 Control device for controlling the level of a liquid in a container |
| 06/20/1978 | US4095920 Pump control |
| 06/06/1978 | US4092860 Level measurement and control |
| 05/30/1978 | US4091834 Apparatus for automatically preparing solution of controlled concentration |
| 03/28/1978 | US4080985 Water level alarm apparatus |
| 03/21/1978 | US4080104 Wet-dry vacuum apparatus with pump means for discharging liquid therefrom |
| 03/21/1978 | US4079748 Automatic stop valve |
| 02/14/1978 | US4073310 Method and apparatus for controlling the liquid level above a solid bed |
| 12/27/1977 | US4065227 Control circuit |
| 12/27/1977 | US4065226 Water well monitor |
| 12/06/1977 | US4061893 Sprinkler flow control systems having continuous cycle timer and associated apparatus disposed in a hermetically sealed housing |
| 12/06/1977 | US4061442 System and method for maintaining a liquid level |
| 11/22/1977 | US4059424 Apparatus for the controlled supply of cryogenic fluid |
| 08/23/1977 | US4042984 Automatic bathtub water level control system |
| 07/19/1977 | US4036023 Flood control system for a dam |
| 06/21/1977 | US4030521 Method for liquid level control |
| 06/07/1977 | US4027791 Gas-energized liquid transfer and control system |
| 06/07/1977 | US4027487 Method for adjusting an automatic sluice with a view to ensuring a determined level |
| 04/26/1977 | US4020488 Or control apparatus |
| 04/26/1977 | US4019562 Automatic molding apparatus with means for controlling pouring rate |
| 03/29/1977 | US4014359 Sprinkler flow control systems |
| 03/08/1977 | US4011102 Water-level regulating device |
| 01/11/1977 | US4002552 Liquid level control system |
| 09/21/1976 | US3981619 Control device for controlling the level of a liquid in a container |
| 09/07/1976 | US3979290 Apparatus and process for controlling and regulating the freedom of suspended matter |
| 07/20/1976 | US3970099 Liquid level responsive vent valve |
| 06/01/1976 | US3961230 Current relay actuated by multistage amplifier's total current drains |
| 05/18/1976 | US3958157 Oil level detection circuit |
| 05/04/1976 | US3954351 Liquid level reservoir control |
| 03/30/1976 | US3946901 Apparatus for controlling the level of a particulate pourable material in a defined space |
| 03/16/1976 | US3944845 Liquid level shutoff control |
| 03/16/1976 | US3944785 Electrode boiler with automatic control |
| 03/02/1976 | US3941147 Level control for surface treatment baths |
| 02/17/1976 | US3938554 Cryogenic controller device |
| 02/10/1976 | US3937920 Method of operating an electrode-type water-vapor generator |
| 02/10/1976 | US3937596 Fluid pump driving control |