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Class Information
Number: 137/5
Name: Fluid handling > Processes > With control of flow by a condition or characteristic of a fluid > Mixing of plural fluids of diverse characteristics or conditions > Controlled by conductivity of mixture
Description: Processes in which the determined condition is the conductivity of the mixture.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8584690 Material delivery systems and methods Nov. 19, 2013
8580198 Automatic analyzer Nov. 12, 2013
8382364 Automated solution making Feb. 26, 2013
8147775 Self-cleaning and mixing microfluidic elements Apr. 3, 2012
7815809 Method for conductivity calculation in a treatment fluid upstream and downstream a filtration unit in apparatuses for the blood treatment Oct. 19, 2010
7344297 Method and apparatus for asynchronous blending and supply of chemical solutions Mar. 18, 2008
7246631 Adhesive mix monitor Jul. 24, 2007
6875287 Water reclamation rate in semiconductor fabrication wet benches Apr. 5, 2005
6814869 Method and an apparatus as well as a connector and a concentrate container unit for the preparation of solutions Nov. 9, 2004
6799883 Method for continuously blending chemical solutions Oct. 5, 2004
6591872 Process and plant for the dynamic packaging of gases, especially those for medical use Jul. 15, 2003
6456903 Automatic foam solution regulation for compressed-air-foam-systems Sep. 24, 2002
6418958 Dual solid chemical feed system Jul. 16, 2002
6247838 Method for producing a liquid mixture having a predetermined concentration of a specified component Jun. 19, 2001
6227695 Automated liquid manufacturing system May. 8, 2001
6077444 Method for manufacturing a system for treating water Jun. 20, 2000
6050283 System and method for on-site mixing of ultra-high-purity chemicals for semiconductor processing Apr. 18, 2000
5993671 Method for manufacturing a system for treating reclaimed water to provide treated water Nov. 30, 1999
5960808 Method of controlling the amount of sanitizing agent in an aqueous medium Oct. 5, 1999
5906048 Process and prefabricated parts for producing branch pieces for pipes May. 25, 1999
5855791 Performance-based control system Jan. 5, 1999
5829466 Fluid treatment system Nov. 3, 1998
5823219 System and method for producing and maintaining predetermined proportionate mixtures of fluids Oct. 20, 1998
5800056 Apparatus for diluting a solution and method for the same Sep. 1, 1998
5751599 Probeless microprocessor based controller for open recirculating evaporative cooling systems May. 12, 1998
5647391 Sensing arrangement for sensing the addition of reactants to a solution Jul. 15, 1997
5641410 System for treating reclaimed water to provide treated water and corresponding method Jun. 24, 1997
5576617 Apparatus & method for measuring the average aspect ratio of non-spherical particles in a suspension Nov. 19, 1996
5460446 Device and method for preparing solution for medical use Oct. 24, 1995
5398711 Modular fluid characteristic sensor and additive controller Mar. 21, 1995
5318078 Process for bottling beverages Jun. 7, 1994
5284174 System and method for producing and maintaining predetermined proportionate mixtures of fluids Feb. 8, 1994
5253379 Washing process Oct. 19, 1993
5137694 Industrial solid detergent dispenser and cleaning system Aug. 11, 1992
5128606 Aspect radio measurement Jul. 7, 1992
4969480 Method and apparatus for mixing and supplying fountain solution to printing press Nov. 13, 1990
4956887 Method of metering detergent Sep. 18, 1990
4947885 Brine monitor Aug. 14, 1990
4945939 pH control system for an aqueous liquid reservior Aug. 7, 1990
4877489 Electronic control and dosing system for desalinators Oct. 31, 1989
4759314 Method of control of steam quality from a steam generator Jul. 26, 1988
4733798 Method and apparatus for controlling the concentration of a chemical solution Mar. 29, 1988
4717582 Method and apparatus for controlling the density of a foam Jan. 5, 1988
4508602 Process for producing concentrated solutions containing alkali metal chlorates and alkali metal chlorides Apr. 2, 1985
4464315 Indexing controller system and method of automatic control of cooling water tower systems Aug. 7, 1984
4460008 Indexing controller apparatus for cooling water tower systems Jul. 17, 1984
4434033 Process for producing concentrated solutions containing alkali metal chlorates and alkali metal chlorides Feb. 28, 1984
4323092 Apparatus and process for detecting free chlorine Apr. 6, 1982
4306581 Chemical concentration control system for fluid circulators Dec. 22, 1981
4277343 Method for continuously monitoring and controlling alkalinity for environmental purposes using a pCO.sub.2 probe Jul. 7, 1981

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