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Class Information
Number: 210/170
Name: Liquid purification or separation > Structural installation > Geographic (e.g., drainage ditch, septic, pond)
Description: Apparatus in which a separator is part of a system installed in the ground or related to a particular geographic feature, as a lake.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5271557 |
Methods and systems for gas treatment |
Dec. 21, 1993 |
| 5271831 |
Selenate removal from waste water |
Dec. 21, 1993 |
| 5266213 |
Cleaning halogenated contaminants from groundwater |
Nov. 30, 1993 |
| 5264127 |
Floating aquatic plant water treatment system with sprayer system |
Nov. 23, 1993 |
| 5262065 |
Apparatus and method for decontaminating aquifers |
Nov. 16, 1993 |
| 5256281 |
Baffle system for anaerobic sewage treatment pond |
Oct. 26, 1993 |
| 5256310 |
Treatment of fresh water for zebra mussel infestation |
Oct. 26, 1993 |
| 5254252 |
Ecological treatment system for flowing water |
Oct. 19, 1993 |
| 5252000 |
Free product collector and method |
Oct. 12, 1993 |
| 5249887 |
Apparatus for control of liquids |
Oct. 5, 1993 |
| 5250199 |
Sludge scraper apparatus |
Oct. 5, 1993 |
| 5244569 |
Toxic liquid collector |
Sep. 14, 1993 |
| 5242584 |
All-fluid septic tank with incorporated liquid collector |
Sep. 7, 1993 |
| 5240608 |
Apparatus for waste free dredging of waterways and the fabrication of building materials |
Aug. 31, 1993 |
| 5236589 |
Oil recovery method and apparatus |
Aug. 17, 1993 |
| 5232587 |
Stormwater inlet filter |
Aug. 3, 1993 |
| 5228983 |
Particle separator |
Jul. 20, 1993 |
| 5228984 |
System for composting feces and treating urine |
Jul. 20, 1993 |
| 5228998 |
Floating biological contactor |
Jul. 20, 1993 |
| 5229005 |
Ocean depth reverse osmosis fresh water factory |
Jul. 20, 1993 |
| 5227055 |
Aquaculture water treatment system including combined rotating biological contactor and evaporative cooler |
Jul. 13, 1993 |
| 5227056 |
Apparatus for improving the quality of a large amount of water and the quantity of dissolved oxygen therein |
Jul. 13, 1993 |
| 5227067 |
Apparatus for improving irrigation or cleaning water and method for its use |
Jul. 13, 1993 |
| 5227068 |
Closed apparatus system for improving irrigation and method for its use |
Jul. 13, 1993 |
| 5223130 |
Device for organic neutralization and removal of phosphorus compounds present in water basins |
Jun. 29, 1993 |
| 5220958 |
Arrangement for driving out of volatile impurities from ground water |
Jun. 22, 1993 |
| 5217622 |
Process and apparatus for treatment of cemetary liquids, gases and vapors from stanch interment units |
Jun. 8, 1993 |
| 5215656 |
Rotary self-cleaning strainer |
Jun. 1, 1993 |
| 5211842 |
Three-phase well test apparatus using pumped recirculation to maintain homogenous flow |
May. 18, 1993 |
| 5207899 |
Rotating bacterial tablet dispenser for an underground wastewater denitrification system |
May. 4, 1993 |
| 5205927 |
Apparatus for treatment of soils contaminated with organic pollutants |
Apr. 27, 1993 |
| 5198113 |
Septic system filtering arrangement, filter material and method of using |
Mar. 30, 1993 |
| 5196125 |
Underground effluent disposal-delivery system |
Mar. 23, 1993 |
| 5194147 |
Decontamination system |
Mar. 16, 1993 |
| 5192426 |
Water reclamation system for landscape irrigation |
Mar. 9, 1993 |
| 5192428 |
Portable system for treating human waste |
Mar. 9, 1993 |
| 5192429 |
Self-cleaning filter |
Mar. 9, 1993 |
| 5186822 |
Wave powered desalination apparatus with turbine-driven pressurization |
Feb. 16, 1993 |
| 5183563 |
System for removal and disposal of minor amounts of organics from contaminated water |
Feb. 2, 1993 |
| 5180501 |
Floating aquatic plant water treatment system |
Jan. 19, 1993 |
| 5180503 |
In-situ vapor stripping for removing volatile organic compounds from groundwater |
Jan. 19, 1993 |
| 5176825 |
System for treating food waste by centrifugal spin drum and bag filter |
Jan. 5, 1993 |
| 5174897 |
Constructed wetlands to control nonpoint source pollution |
Dec. 29, 1992 |
| 5173092 |
Hydrocarbon removal system |
Dec. 22, 1992 |
| 5173180 |
Domestic water conservation system |
Dec. 22, 1992 |
| 5173182 |
Multi-purpose environmental work vessel |
Dec. 22, 1992 |
| 5171103 |
Arrangement for expelling highly volatile impurities from ground water |
Dec. 15, 1992 |
| 5171104 |
Arrangement for treating gas from contaminated ground region |
Dec. 15, 1992 |
| 5171334 |
Diffused air stripping system |
Dec. 15, 1992 |
| 5171434 |
Effluent recycling sanitation system |
Dec. 15, 1992 |
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