Patents for G05D 11 - Ratio control (5,344)
06/1977
06/07/1977US4027859 Automatic control of liquid addition to a mixture by power sensing
05/1977
05/31/1977US4026439 Precision fluid dispensing and mixing system
05/24/1977US4024885 Process and apparatus for controlling the concentration of diazotype developing liquid
05/17/1977US4023587 Method and apparatus for mixing two gases in a predetermined proportion
05/10/1977US4022238 Pressure compensating device for mixing faucets
05/10/1977US4022234 Method and apparatus for mixing two gases in a predetermined proportion
04/1977
04/26/1977US4019653 Automatic proportioning paint spray system
04/26/1977US4019523 Method and apparatus for mixing gases
04/19/1977US4018077 Apparatus for providing a controlled concentration of a substance in a flow of liquid
04/12/1977US4017602 Process for preparing products for use in aerosol form
04/05/1977US4015617 Analgesic apparatus
02/1977
02/22/1977US4008829 Ratio controlled mixing of liquids
02/15/1977US4008093 Control method and equipment for charging ready-mixed concrete additives batchwise
02/15/1977US4007755 Component injection system
02/08/1977US4006752 Control for fluid flow system
01/1977
01/25/1977US4004602 Self-metering dual proportioner
01/18/1977US4003242 By measuring the velocity of sound
01/11/1977US4002271 Proportioning systems
12/1976
12/28/1976US3999686 Apparatus for continuously mixing and monitoring a syrup mixture
12/21/1976US3998239 Gas dosing arrangement
12/14/1976US3997826 Valve operator circuit with provision for presetting
12/14/1976US3996953 Apparatus for dosing a flowing fluid
11/1976
11/23/1976US3993293 Automatic leaching system for hydro-metallurgical production of zinc
10/1976
10/19/1976US3987132 Air-liquid fuel mixture
10/05/1976US3984510 Ratio controlled mixing of liquids
09/1976
09/14/1976US3980231 Proportioning sprayer device
08/1976
08/17/1976US3974847 Liquid additive dispenser
08/10/1976US3973579 Apparatus for controlling the ratio of flow of two gases
07/1976
07/27/1976US3971341 Automatic proportioner for low-pressure watering troughs
07/20/1976US3970942 Anti-hunting system for valve operator circuit
07/06/1976US3967920 Horticulture spraying systems
07/06/1976US3967634 Flow ratio control system
06/1976
06/15/1976US3963148 Apparatus for drawing, measuring and discharging proportional amounts of fluid
06/15/1976US3963038 Liquid proportioning pump
05/1976
05/18/1976US3957073 Pressure balancing valve
04/1976
04/20/1976US3951311 Liquid measuring and mixing apparatus
03/1976
03/30/1976US3946902 Automatic feeder for infusion of a soluble solid solute into a circulating solvent
03/02/1976US3942082 Multi-line chemical injection system
02/1976
02/24/1976US3940600 Method and apparatus for on-line non-interactive blending using an uncoupling matrix
02/24/1976US3939858 Assembly and method of obtaining a controlled gas mixture
02/10/1976US3937241 Device for injecting an adjuvant into a liquid
02/03/1976US3935971 Double pump device for mixing two or more liquids with variable relative ratios and concentrations
01/1976
01/27/1976US3934604 Proportioning apparatus
01/20/1976US3933039 Pulse flow detector
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