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Class Information
Number: 210/538
Name: Liquid purification or separation > Gravitational separator > Lighter constituent trap
Description: Apparatus in which a lighter constituent is prevented from escaping from an outlet for a heavier constituent.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459090 |
Stormwater treatment system and method |
Dec. 2, 2008 |
| 7445704 |
Oil separation apparatus |
Nov. 4, 2008 |
| 7438803 |
Disposable weir liner |
Oct. 21, 2008 |
| 7431851 |
Fat separator |
Oct. 7, 2008 |
| 7427356 |
Fats, oil and grease interceptor |
Sep. 23, 2008 |
| 7422683 |
Vortex separator for separating floating and settling substances from centrally inflowing storm-water |
Sep. 9, 2008 |
| 7384551 |
Trapezoid settler apparatus and method for solvent extraction |
Jun. 10, 2008 |
| 7367459 |
Passive grease trap using separator technology |
May. 6, 2008 |
| 7364664 |
Foreign matter removing mechanism, fluid flow processing equipment, and foreign matter removing method |
Apr. 29, 2008 |
| 7328809 |
Solvent extraction method and apparatus |
Feb. 12, 2008 |
| 7314549 |
Storm water interceptor |
Jan. 1, 2008 |
| 7311818 |
Water separation unit |
Dec. 25, 2007 |
| 7303085 |
Method and apparatus for purifying mixtures of oil and water |
Dec. 4, 2007 |
| 7296693 |
Anaerobic sludge digester |
Nov. 20, 2007 |
| 7288188 |
Ground water collection system |
Oct. 30, 2007 |
| 7285211 |
Process and system for separating solids from combined sewer overflows |
Oct. 23, 2007 |
| 7273548 |
Fluid filter |
Sep. 25, 2007 |
| 7258800 |
Electrocoagulation waste water batch tank treatment system |
Aug. 21, 2007 |
| 7223332 |
Reactor and process for mercaptan oxidation and separation in the same vessel |
May. 29, 2007 |
| 7182874 |
Storm water treatment apparatus employing dual vortex separators |
Feb. 27, 2007 |
| 7172688 |
Mixed immiscible liquids vacuum, separation, and disposal method and system (Mod 1) |
Feb. 6, 2007 |
| 7163624 |
Electrostatic separator |
Jan. 16, 2007 |
| 7105086 |
Storm drain capture and containment device |
Sep. 12, 2006 |
| 7067064 |
Decanting device for use on vessels with spill rails |
Jun. 27, 2006 |
| 7060179 |
Sanitation barrier for oil/grease separator in a kitchen |
Jun. 13, 2006 |
| 7033496 |
Water clarification system with weir |
Apr. 25, 2006 |
| 7029585 |
Grease trap |
Apr. 18, 2006 |
| 7021471 |
Diffuser for an oil water separator system |
Apr. 4, 2006 |
| 7022243 |
Apparatus for treating storm water |
Apr. 4, 2006 |
| 7018528 |
Portable purifying system |
Mar. 28, 2006 |
| 7014779 |
Vacuum separation, transport and collection system for immiscible liquids |
Mar. 21, 2006 |
| 7011752 |
Wastewater separator and method of using same |
Mar. 14, 2006 |
| 6966984 |
Pre-cast drive-down water separation pit system |
Nov. 22, 2005 |
| 6962656 |
Liquid reconditioning system including a venturi pump |
Nov. 8, 2005 |
| 6951619 |
Apparatus for trapping floating and non-floating particulate matter |
Oct. 4, 2005 |
| 6926022 |
Condensate removal system |
Aug. 9, 2005 |
| 6920984 |
Rainwater tank cleaning system |
Jul. 26, 2005 |
| 6919033 |
Stormwater treatment system for eliminating solid debris |
Jul. 19, 2005 |
| 6907997 |
Water clarification system with coalescing plates |
Jun. 21, 2005 |
| 6837997 |
Disposal of sediment from pond or lagoon at petroleum refinery |
Jan. 4, 2005 |
| 6824696 |
Oil from water separator |
Nov. 30, 2004 |
| 6783683 |
Stormwater pollutant separation system and method of stormwater management |
Aug. 31, 2004 |
| 6758886 |
Three-phase separator and installation for biological purification of effluent |
Jul. 6, 2004 |
| 6749746 |
Catch basin trap with filter |
Jun. 15, 2004 |
| 6749089 |
Reversing trap container closure |
Jun. 15, 2004 |
| 6730222 |
Hydrodynamic vortex separator |
May. 4, 2004 |
| 6676833 |
Apparatus for removing grit and grease from water |
Jan. 13, 2004 |
| 6676832 |
Surface water purifying catch basin |
Jan. 13, 2004 |
| 6672012 |
Gutter cover device |
Jan. 6, 2004 |
| 6641722 |
System for removing silicone oil from waste water treatment plant sludge |
Nov. 4, 2003 |
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