Patents
Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688)
11/1980
11/25/1980US4235829 Vapor delivery system and method of maintaining a constant level of liquid therein
10/1980
10/28/1980US4230578 Sewage effluent volume control and alarm arrangement for pressurized sewage disposal system
10/14/1980US4227565 Flow cut-off method and apparatus for foundry installations
10/07/1980US4226278 Automatic molten metal surface level control system for continuous casting machines
10/07/1980CA1087279A1 Time independent cycle control for plastic injection molding machines
09/1980
09/16/1980CA1085769A1 Sea water desalination apparatus
09/02/1980US4220164 Tobacco distributor for cigarette rod making machines or the like
08/1980
08/19/1980US4217926 Thermally controlled oil storage reservoir for a transmission
08/07/1980WO1980001572A1 Method of automatic control of molten metal bath level in cristallizers
07/1980
07/22/1980CA1082075A1 Apparatus for mixing cold and hot water, and for distributing the water mixture
07/15/1980US4212590 Method and apparatus for the continuous regulation of rotary hydrodynamic pumps
07/08/1980CA1081343A1 Float detecting device for pressurized slurry transfer apparatus
06/1980
06/10/1980US4207030 Apparatus for controlling liquid level in a reservoir
06/10/1980CA1079382A1 Wood chip digester level control
05/1980
05/27/1980US4205237 Liquid level sensor, pump system means and circuit means
05/13/1980US4202367 Circuit arrangement for regulating the level of liquid in vessels
04/1980
04/30/1980EP0010310A2 Liquid level control blocking valve
04/01/1980US4195968 Liquid level control
04/01/1980US4195652 Liquid level control for a transmission sump
03/1980
03/25/1980US4194526 Nozzle regulating device
03/18/1980US4194077 Batch sensor for glass-melting furnaces
03/11/1980CA1073541A1 Liquid level sensing circuit
03/11/1980CA1073540A1 Teeming rate control in metal ingot making
03/06/1980WO1980000382A1 Method and device for controlling a liquid level
01/1980
01/08/1980US4182363 Liquid level controller
12/1979
12/25/1979US4180083 System for controlling flow rate in pipelines
12/25/1979CA1068799A Appliance programmer including a safety circuit
12/18/1979US4179242 Method and apparatus for liquid supply
10/1979
10/30/1979CA1065440A1 Pump control
10/23/1979US4171932 Liquid level sensor, pump system means and circuit means
09/1979
09/11/1979US4167163 Sensor monitoring apparatus
09/04/1979US4166713 Auxiliary liquid tank
08/1979
08/22/1979EP0003703A1 Method and device for regulating the flow of evolutive pulps at the output of a tank
04/1979
04/17/1979US4149672 Apparatus for mixing cold and hot water, and for distributing the water mixture
04/10/1979CA1052458A2 Sump pump system and pressure responsive switch assembly therefor
03/1979
03/21/1979EP0001188A1 Pressure transmitting device and a control or regulating system using it
03/21/1979EP0001142A1 Controlling means for metal casting installations
02/1979
02/20/1979US4140143 Apparatus and method for continuously monitoring and controlling the level of tar in a settling tank
02/13/1979US4139332 Pumping rate control method and apparatus for internal combustion engine driven pumps
01/1979
01/30/1979US4136721 Method and apparatus for transferring liquid from a storage container to a vessel in a controlled manner
01/23/1979CA1047142A1 Liquid level control system
01/16/1979CA1046461A1 Automatic discharge valve in liquid suspension separator for coal
01/02/1979US4132259 Automatic control of the level of a molten metal bath
11/1978
11/14/1978US4125163 Method and system for controlling well bore fluid level relative to a down hole pump
10/1978
10/31/1978CA1041365A1 Dehydrated granular potato product and process for production of same
10/24/1978CA1040832A1 Apparatus for controlling the level of the molten metal in a mold for continuous casing
10/17/1978US4121094 System for detecting, indicating and regulating the level of semi-solid matter in a reservoir
10/17/1978US4120611 Electronic device for automatically controlling the level of a liquid in a vat
10/17/1978CA1040526A1 Method and apparatus for transferring liquid from a storage container to a vessel in a controlled manner
09/1978
09/26/1978US4116586 Constant fluid level control for machine reservoir
08/1978
08/22/1978US4109160 Control system for hydroelectric power station system
08/08/1978US4105367 Liquid level sensing circuit
07/1978
07/11/1978US4099461 Control device for controlling the level of a liquid in a container
06/1978
06/20/1978US4095920 Pump control
06/06/1978US4092860 Level measurement and control
05/1978
05/30/1978US4091834 Apparatus for automatically preparing solution of controlled concentration
03/1978
03/28/1978US4080985 Water level alarm apparatus
03/21/1978US4080104 Wet-dry vacuum apparatus with pump means for discharging liquid therefrom
03/21/1978US4079748 Automatic stop valve
02/1978
02/14/1978US4073310 Method and apparatus for controlling the liquid level above a solid bed
12/1977
12/27/1977US4065227 Control circuit
12/27/1977US4065226 Water well monitor
12/06/1977US4061893 Sprinkler flow control systems having continuous cycle timer and associated apparatus disposed in a hermetically sealed housing
12/06/1977US4061442 System and method for maintaining a liquid level
11/1977
11/22/1977US4059424 Apparatus for the controlled supply of cryogenic fluid
08/1977
08/23/1977US4042984 Automatic bathtub water level control system
07/1977
07/19/1977US4036023 Flood control system for a dam
06/1977
06/21/1977US4030521 Method for liquid level control
06/07/1977US4027791 Gas-energized liquid transfer and control system
06/07/1977US4027487 Method for adjusting an automatic sluice with a view to ensuring a determined level
04/1977
04/26/1977US4020488 Or control apparatus
04/26/1977US4019562 Automatic molding apparatus with means for controlling pouring rate
03/1977
03/29/1977US4014359 Sprinkler flow control systems
03/08/1977US4011102 Water-level regulating device
01/1977
01/11/1977US4002552 Liquid level control system
09/1976
09/21/1976US3981619 Control device for controlling the level of a liquid in a container
09/07/1976US3979290 Apparatus and process for controlling and regulating the freedom of suspended matter
07/1976
07/20/1976US3970099 Liquid level responsive vent valve
06/1976
06/01/1976US3961230 Current relay actuated by multistage amplifier's total current drains
05/1976
05/18/1976US3958157 Oil level detection circuit
05/04/1976US3954351 Liquid level reservoir control
03/1976
03/30/1976US3946901 Apparatus for controlling the level of a particulate pourable material in a defined space
03/16/1976US3944845 Liquid level shutoff control
03/16/1976US3944785 Electrode boiler with automatic control
03/02/1976US3941147 Level control for surface treatment baths
02/1976
02/17/1976US3938554 Cryogenic controller device
02/10/1976US3937920 Method of operating an electrode-type water-vapor generator
02/10/1976US3937596 Fluid pump driving control
1 ... 37 38 39 40 41 42 43 44 45 46 47