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Class Information
Number: 210/137
Name: Liquid purification or separation > Flow, fluid pressure or material level, responsive > Maintaining stream pressure or flow
Description: Apparatus to regulate pressure of or rate of flow of a liquid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7438801 |
Compact personal water purification device |
Oct. 21, 2008 |
| 7435340 |
Wastewater treatment system |
Oct. 14, 2008 |
| 7419587 |
Water purification device |
Sep. 2, 2008 |
| 7410587 |
Liquid handling for filtration and preparative chromatography |
Aug. 12, 2008 |
| 7410568 |
Sludge treatment |
Aug. 12, 2008 |
| 7407585 |
Water purification system and methods, and module for the system |
Aug. 5, 2008 |
| 7381324 |
Hydromechanical driving device |
Jun. 3, 2008 |
| 7340845 |
Evaporation apparatus |
Mar. 11, 2008 |
| 7338606 |
Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system |
Mar. 4, 2008 |
| 7306715 |
Pump module |
Dec. 11, 2007 |
| 7270746 |
Water treatment system for water animal feeding facility |
Sep. 18, 2007 |
| 7255141 |
Beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage |
Aug. 14, 2007 |
| 7214315 |
Pressure exchange apparatus with integral pump |
May. 8, 2007 |
| 7198713 |
Installation for the removal and the deactivation of organisms in the ballast water |
Apr. 3, 2007 |
| 7189325 |
Method and device for desalting water |
Mar. 13, 2007 |
| 7186331 |
Monitoring unit for monitoring the condition of a semi-permeable membrane |
Mar. 6, 2007 |
| 7179369 |
Oil filter system |
Feb. 20, 2007 |
| 7172689 |
Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system |
Feb. 6, 2007 |
| 7163617 |
Chemical proportioning and dispensing systems |
Jan. 16, 2007 |
| 7108790 |
Method and apparatus for generating a sterile infusion fluid |
Sep. 19, 2006 |
| 7077959 |
Packaged wastewater treatment unit |
Jul. 18, 2006 |
| 7052603 |
Single-use manifold for automated, aseptic transfer of soulutions in bioprocessing applications |
May. 30, 2006 |
| 7005073 |
Residual wastewater chlorine concentration control using a dynamic weir |
Feb. 28, 2006 |
| 6966980 |
SSF/x slow sand filter |
Nov. 22, 2005 |
| 6942787 |
Filter module with pressure regulator |
Sep. 13, 2005 |
| 6936179 |
Method and apparatus for adding oxygen to drinking water |
Aug. 30, 2005 |
| 6916424 |
Method and apparatus for a hemodiafiltration delivery module |
Jul. 12, 2005 |
| 6908546 |
Apparatus and method for producing purified water having microbiological purity |
Jun. 21, 2005 |
| 6893569 |
Method and apparatus for high pressure liquid chromatography |
May. 17, 2005 |
| 6861033 |
Purified water supply system for high demand devices and applications |
Mar. 1, 2005 |
| 6861003 |
Edge filter having improved flow rate |
Mar. 1, 2005 |
| 6850850 |
Fluid filter flowmeter self-generating power source system and method |
Feb. 1, 2005 |
| 6833066 |
Liquid filter, especially oil filter |
Dec. 21, 2004 |
| 6783667 |
Screen unit for viscous mass |
Aug. 31, 2004 |
| 6783668 |
Integrated pressurized liquid extraction and purification system |
Aug. 31, 2004 |
| 6764595 |
Fluid treatment system |
Jul. 20, 2004 |
| 6752928 |
Flow matching method and system using two transducers |
Jun. 22, 2004 |
| 6746606 |
Method and system for matching flow rate |
Jun. 8, 2004 |
| 6743363 |
Method of bacteriostasis or disinfection for permselective membrane |
Jun. 1, 2004 |
| 6712956 |
Apparatus for monitoring discharge of photoresist |
Mar. 30, 2004 |
| 6712963 |
Single-use manifold for automated, aseptic transfer of solutions in bioprocessing applications |
Mar. 30, 2004 |
| 6692636 |
Apparatus removing metallic particles from effluent liquid waste |
Feb. 17, 2004 |
| 6649047 |
Protection system to prevent damage to a gas diffusion membrane |
Nov. 18, 2003 |
| 6607669 |
Method and apparatus for enhancing filtration yields in tangential flow filtration |
Aug. 19, 2003 |
| 6592767 |
Apparatus and method for ozone-treating biosludges |
Jul. 15, 2003 |
| 6592754 |
Apparatus and process for removing metallic particles from effluent liquid waste |
Jul. 15, 2003 |
| 6579449 |
Carbonated water supply system |
Jun. 17, 2003 |
| 6544412 |
Filter including temperature and pressure responsive bypass |
Apr. 8, 2003 |
| 6506298 |
Biofiltering system for treating wastewater effluent |
Jan. 14, 2003 |
| 6497821 |
Method and apparatus for filtering suspensions of medical and biological fluids or the like |
Dec. 24, 2002 |
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