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Class Information
Number: 700/282
Name: Data processing: generic control systems or specific applications > Specific application, apparatus or process > Mechanical control system > Flow control (e.g., valve or pump control)
Description: Subject matter comprising means for regulating (e.g., diversion, cutoff, modulation) the passage or the flow capacity of a fluid.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4348259 |
Control of sidedraw on distillation column |
Sep. 7, 1982 |
| 4344144 |
Apparatus for creating gas flow cycles |
Aug. 10, 1982 |
| 4336745 |
Servovalve flow linearization circuit |
Jun. 29, 1982 |
| 4336590 |
Devices for controlling gas flows |
Jun. 22, 1982 |
| 4333356 |
Mixing apparatus |
Jun. 8, 1982 |
| 4325127 |
Flow meter system |
Apr. 13, 1982 |
| 4318303 |
Fluid flow monitors |
Mar. 9, 1982 |
| 4300401 |
Method and apparatus for determining fluid flow |
Nov. 17, 1981 |
| 4295196 |
Fractional distillation column control |
Oct. 13, 1981 |
| 4285046 |
Correlation method |
Aug. 18, 1981 |
| 4278536 |
Method of starting an electro-pneumatically actuated wet-settling machine |
Jul. 14, 1981 |
| 4277832 |
Fluid flow control system |
Jul. 7, 1981 |
| 4272367 |
Starting techniques for an electro-pneumatically actuated wet settling machine |
Jun. 9, 1981 |
| 4270573 |
Controller for fluid flow systems |
Jun. 2, 1981 |
| 4264441 |
Automatic control for electro-pneumatic wet settling |
Apr. 28, 1981 |
| 4264955 |
Signal voter |
Apr. 28, 1981 |
| 4262791 |
Draw rate signal generator |
Apr. 21, 1981 |
| 4252614 |
Control of multiple feed fractional distillation column |
Feb. 24, 1981 |
| 4250553 |
Fluid flow measurement system |
Feb. 10, 1981 |
| 4237538 |
Electronic means for controlling the regeneration of resins in a resin type ion exchange device |
Dec. 2, 1980 |
| 4237092 |
Method and apparatus for producing carbon black |
Dec. 2, 1980 |
| 4234410 |
Temperature control of exothermic reactions |
Nov. 18, 1980 |
| 4231459 |
Control system for an N-methyl-2-pyrrolidone refining unit receiving light sweet charge oil |
Nov. 4, 1980 |
| 4230215 |
Control system for an MP refining unit receiving medium sweet charge oil |
Oct. 28, 1980 |
| 4230534 |
Control of a fractional distillation column |
Oct. 28, 1980 |
| 4224673 |
Control system for an MP refining unit receiving heavy sour charge oil |
Sep. 23, 1980 |
| 4224674 |
Control system for an N-methyl-2-pyrrolidone refining unit receiving heavy sweet charge oil |
Sep. 23, 1980 |
| 4217647 |
Process control valve apparatus |
Aug. 12, 1980 |
| 4217243 |
Catalyst regenerator control |
Aug. 12, 1980 |
| 4213181 |
Energy dissipation circuit for electromagnetic injection |
Jul. 15, 1980 |
| 4200911 |
Control of the flow rate and fluid pressure in a pipeline network for optimum distribution of the fluid to consumers |
Apr. 29, 1980 |
| 4199813 |
Apparatus useful in exhaust dyeing |
Apr. 22, 1980 |
| 4189005 |
Fire truck control means |
Feb. 19, 1980 |
| 4185073 |
Apparatus for iso- or terephthalic acid production in and recovery from benzoic acid-water solvent system |
Jan. 22, 1980 |
| 4169016 |
Control system for a furfural refining unit receiving light sweet charge oil |
Sep. 25, 1979 |
| 4134423 |
Flowrate control means |
Jan. 16, 1979 |
| 4106916 |
Automatic control of an absorption/stripping process |
Aug. 15, 1978 |
| 4103695 |
Method of and device for controlling solenoid operated flow control means |
Aug. 1, 1978 |
| 4090241 |
Method for estimating and controlling the mass flow rate of a free falling fluid stream |
May. 16, 1978 |
| 4084239 |
Precision pressure generator |
Apr. 11, 1978 |
| 4075293 |
Control system for an absorption column |
Feb. 21, 1978 |
| 4074354 |
Process control system |
Feb. 14, 1978 |
| 4061533 |
Control system for a nuclear power producing unit |
Dec. 6, 1977 |
| 4053743 |
Method for controlling the pH and other concentration variables |
Oct. 11, 1977 |
| RE29383 |
Digital fluid flow rate measurement or control system |
Sep. 6, 1977 |
| 4037598 |
Method and apparatus for fluid flow control |
Jul. 26, 1977 |
| 4023020 |
Wheeled vehicle with controlled-output spreader system |
May. 10, 1977 |
| 4007754 |
Flow control system |
Feb. 15, 1977 |
| 4007595 |
Dual turbine power plant and a reheat steam bypass flow control system for use therein |
Feb. 15, 1977 |
| 4005581 |
Method and apparatus for controlling a steam turbine |
Feb. 1, 1977 |
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