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Class Information
Number: 210/123
Name: Liquid purification or separation > Flow, fluid pressure or material level, responsive > Float > Controls valve
Description: Apparatus in which the float controls valve means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7419591 |
Filter cartridge with check valve protection |
Sep. 2, 2008 |
| 7387722 |
Water treatment system |
Jun. 17, 2008 |
| 7314509 |
Gas liquid phase separator with improved pressure control |
Jan. 1, 2008 |
| 7294254 |
Wastewater treatment system |
Nov. 13, 2007 |
| 7282144 |
Semi-submersible floating decanters and methods of using same |
Oct. 16, 2007 |
| 7243669 |
Float-responsive valve with premature closure prevention |
Jul. 17, 2007 |
| 7214311 |
Filter cartridge with check valve protection |
May. 8, 2007 |
| 7175760 |
Water dispensing apparatus with water recirculation line |
Feb. 13, 2007 |
| 7097046 |
Automatically cleaning filter assembly for a liquid-carrying loop |
Aug. 29, 2006 |
| 7094334 |
Water filter having a filter use time indicator |
Aug. 22, 2006 |
| 6979399 |
Sludge recovery apparatus and method |
Dec. 27, 2005 |
| 6938633 |
Method and apparatus for supplying process liquid for machine tool |
Sep. 6, 2005 |
| 6861033 |
Purified water supply system for high demand devices and applications |
Mar. 1, 2005 |
| 6790346 |
Cyclone separator suitable for variable fluid flow rates |
Sep. 14, 2004 |
| 6783665 |
Unit for automatically bleeding off the water which separates in a vehicle fuel filter, in particular for diesel engines |
Aug. 31, 2004 |
| 6749743 |
Fuel diverter for a recirculating wastewater treatment system |
Jun. 15, 2004 |
| 6736964 |
Apparatus for separating mixed fluids and measuring quantity of component fluids |
May. 18, 2004 |
| 6709577 |
High output ozonating apparatus |
Mar. 23, 2004 |
| 6682654 |
Sludge recovery apparatus and method |
Jan. 27, 2004 |
| 6649048 |
Filter cartridge with regulated surface cleaning mechanism |
Nov. 18, 2003 |
| 6638420 |
Apparatus for sewage treatment |
Oct. 28, 2003 |
| 6627070 |
Apparatus for aeration in a water filter system |
Sep. 30, 2003 |
| 6607661 |
Filtering apparatus |
Aug. 19, 2003 |
| 6596158 |
Waste water filtration tank |
Jul. 22, 2003 |
| 6511594 |
High output ozonating apparatus |
Jan. 28, 2003 |
| 6500344 |
Method and apparatus for filtering particles out of a liquid |
Dec. 31, 2002 |
| 6488852 |
Apparatus and method for biological treatment of environmental contaminants and waste |
Dec. 3, 2002 |
| 6481456 |
Liquid treatment apparatus and float valve therefor |
Nov. 19, 2002 |
| 6413416 |
Water treatment vessel with cartridge holder for holding tablets |
Jul. 2, 2002 |
| 6398038 |
Filtration system utilizing a vortex mechanical power filter |
Jun. 4, 2002 |
| 6387251 |
Apparatus for dosing powdered or granulated additives in water works, namely swimming pools |
May. 14, 2002 |
| 6375835 |
Oil recovery system |
Apr. 23, 2002 |
| 6368498 |
Liquid separator |
Apr. 9, 2002 |
| 6361688 |
Treating a liquid with a gas |
Mar. 26, 2002 |
| 6342154 |
Assembly for purifying water |
Jan. 29, 2002 |
| 6337024 |
Chlorination apparatus and method |
Jan. 8, 2002 |
| 6309539 |
Filtration and subsurface distribution system |
Oct. 30, 2001 |
| 6303025 |
Water purification system with baffled flow |
Oct. 16, 2001 |
| 6264832 |
Apparatus for the treatment of rain water |
Jul. 24, 2001 |
| 6261458 |
System for alternately merging at least four fluids and its application in a separation process in a simulated moving bed |
Jul. 17, 2001 |
| 6251286 |
Accumulating automatic skimmer |
Jun. 26, 2001 |
| 6238567 |
Method of making brine for regeneration of a softening appliance |
May. 29, 2001 |
| 6187181 |
Floating skimmer |
Feb. 13, 2001 |
| 6168711 |
Water supply and drainage type microorganic deodorizing system |
Jan. 2, 2001 |
| 6126817 |
Oil and debris separator |
Oct. 3, 2000 |
| 6110383 |
Oil/water separator |
Aug. 29, 2000 |
| 6106704 |
Wastewater treatment system with air pump/control panel platform |
Aug. 22, 2000 |
| 6103108 |
Water treatment apparatus |
Aug. 15, 2000 |
| 6096198 |
Apparatus for conditioning metal cutting fluids |
Aug. 1, 2000 |
| 6089258 |
Float valve assembly for a water purification system |
Jul. 18, 2000 |
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