Patents for G05D 7 - Control of flow (11,410)
03/1980
03/18/1980CA1073777A1 Variable value constant volume fluid flow control valve
03/11/1980CA1073542A1 Automatically controlled seed planter
03/05/1980EP0008417A1 Device for the exact measuring out of liquids
03/04/1980US4191215 Digital fluid flow rate controller
02/1980
02/26/1980US4190204 Shower nozzle for fabric conditioner
02/26/1980US4190084 Flow control means
02/20/1980EP0008025A1 Control device for the flow of a gaseous medium in a conduit
02/19/1980US4188919 Fluid regulating systems
02/12/1980US4187879 Flow regulator
02/12/1980CA1071735A1 Steam turbine control system and method
01/1980
01/29/1980US4185414 Feed regulator for nutrient film agriculture system
01/29/1980CA1070753A1 Stepper motor valve actuator
01/23/1980EP0007252A1 Apparatus for delivering a fluid at constant flow, in particular for spray pistol
01/01/1980CA1069203A Fuel control apparatus for dual chamber stratified charge engine systems
01/01/1980CA1069202A Fuel injection systems
12/1979
12/25/1979CA1068800A Control system for normalizing the air/fuel ratio in a fuel injection system
12/13/1979WO1979001092A1 Fluid flow regulating valve and system
12/11/1979CA1067788A1 Constant flow valve for low flow rates
12/11/1979CA1067781A2 Fluid flow control system
12/04/1979CA1067567A1 Stepper motor valve actuator control apparatus
11/1979
11/27/1979US4176052 Apparatus and method for controlling the rate of feeding a petroleum product to a coking drum system
11/27/1979US4175584 Control valve for keeping the rate of flow at a fixed value
11/27/1979US4175583 Regulator valve
11/06/1979US4173224 Automated intravenous fluid regulating and administering apparatus
11/06/1979CA1065736A1 Fluid flow control device
10/1979
10/30/1979CA1065447A1 Seed population density monitor and control apparatus for field seed planter
10/09/1979US4170279 Fluid flow control devices
10/09/1979US4170245 Digital control valve
10/02/1979CA1063480A1 Adjustable flow floating weir assembly
09/1979
09/19/1979EP0004041A1 Apparatus for limiting the fluid volume output in a rotary pump
09/18/1979CA1062498A1 Dosimeter for monitoring working areas
09/11/1979US4167236 Apparatus for the feeding of liquid synthetic resin components
08/1979
08/28/1979US4165764 Valve
08/21/1979US4164861 Leak standard generator
07/1979
07/31/1979CA1059337A1 Measurement and control of fluid flow
07/24/1979US4161965 Water-flow control device
07/24/1979CA1058996A1 Fluid flow control in a parenteral administration system
07/17/1979US4161264 Fluid metering and mixing device having inlet and outlet valves
07/11/1979EP0002713A1 Flow control of a gaseous medium in a conduit
07/03/1979US4159785 Method for loading particulate matter in a vessel
06/1979
06/27/1979EP0002446A1 Electrically controlled four way valve functioning independently from the load
06/05/1979US4157159 Automatic fluid flow regulator
05/1979
05/08/1979CA1054023A1 Fluid flow regulation
05/01/1979US4151859 Throttle shaft for the controlled discharge of dammed-up water
04/1979
04/24/1979CA1053370A1 Flow control system
04/10/1979US4148340 Digital fluid flow control system
04/10/1979US4148334 Liquid level control sytem
04/10/1979CA1052459A1 Oil well pumpoff control system
04/03/1979US4147298 Fluid flow controller
04/03/1979US4147177 Flow regulator
03/1979
03/27/1979US4146051 Fluid flow control system
03/27/1979CA1051407A1 Valves
03/13/1979CA1050375A1 Variable infusion control device
02/1979
02/27/1979US4141380 Flow-limiting device for a pipe carrying a fluid or gaseous medium
02/21/1979EP0000692A1 Container provided with means for draining off liquid
02/06/1979US4137940 Liquid flow control apparatus
02/06/1979US4137913 Fluid flow control system
01/1979
01/30/1979US4137011 Flow control system for liquid chromatographs
01/30/1979US4136857 Method and apparatus for automatically controlling the rate of flux injection to a converter
01/30/1979CA1047574A1 Fluid-flow control devices
01/23/1979US4135641 Apparatus and methods for dispensing fluid under pressure
01/16/1979US4134663 Method and apparatus for feeding replenishment chemicals in film processors
01/16/1979US4134572 Adjustable flow metering orifice
01/16/1979US4134423 Flowrate control means
01/02/1979US4132941 Syncro-matic circuit used with material spreaders
12/1978
12/12/1978CA1044112A1 Control valves
11/1978
11/21/1978CA1043014A1 Fluid delivery control and registration system
11/07/1978US4124037 Fluid flow regulator
11/07/1978US4123932 Dosimeter for monitoring working areas
10/1978
10/31/1978US4122974 Variable speed planter seed drive
10/31/1978CA1041320A1 Digital fluid flow rate measurement or control system
10/24/1978US4121762 Automatic fluid flow regulator
10/10/1978CA1040050A1 Automatic vacuum stabilizing valve
10/03/1978US4118149 Output regulation in hydraulic and hydropneumatic systems
10/03/1978CA1039833A2 Process control system
10/03/1978CA1039620A1 Rotary flow control valve
09/1978
09/26/1978CA1039146A1 Control valve
09/19/1978US4114857 Spool type metering valve
09/05/1978US4111272 Weigh feeding apparatus
08/1978
08/22/1978US4108575 Obtaining desired flow rate from roller pump despite varying the hose means
08/22/1978US4108574 Apparatus and method for the indirect measurement and control of the flow rate of a liquid in a piping system
08/22/1978US4108371 Damper control device
08/15/1978US4107246 Extrusion control
08/08/1978US4105050 Integral flanged elastomeric flow restrictor
08/08/1978US4105028 Positive control intravenous fluid administration
08/01/1978US4103710 Time cycle controller for pneumatic valve
08/01/1978US4103703 Multistage pilot-controlled pressure-reducing valve
07/1978
07/18/1978US4100927 Fluid flow regulation
07/11/1978US4099700 Flow control device for fluids flowing in a closed conduit
07/11/1978US4099536 Method and apparatus for controlling a surging flow in a closed conduit
07/04/1978US4098285 Device for regulating the differential pressure between two different pressure points of a fluid circuit
06/1978
06/27/1978US4097786 Limit control apparatus
06/27/1978US4096879 Adjustable fluid flow regulator
06/27/1978US4096746 Flow controller-flow sensor assembly for gas chromatographs and the like
06/20/1978US4096424 Electrical circuit for controlling the feed rate of parts
06/20/1978US4095617 Control valves
06/20/1978US4095611 Modulating flow control valve assembly
06/13/1978US4094632 Accelerated response for delivery of smoke suppressant to flares
06/13/1978US4094338 Constant rate float intake
06/13/1978US4094318 Electronic control means for a plurality of intravenous infusion sets