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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 |
| 4865069 |
Fluid drain pump |
Sep. 12, 1989 |
| 4865723 |
Buoyancy powered desalinization plant |
Sep. 12, 1989 |
| 4865725 |
Device for the collection of various substances present in a liquid |
Sep. 12, 1989 |
| 4857184 |
Self-contained water treatment system and enclosure |
Aug. 15, 1989 |
| 4857185 |
Aerated facultative basin having a dual function aeration and sludge removal pump in adjacent well |
Aug. 15, 1989 |
| 4854058 |
Dredging apparatus having a diver-operated hand-held dredge head for quasi-closed loop system |
Aug. 8, 1989 |
| 4855040 |
Installation for purifying liquids using a through-flow-controlled aquatic plant-containing filter bed |
Aug. 8, 1989 |
| 4849101 |
Aeration device with a protection skirt |
Jul. 18, 1989 |
| 4849360 |
Apparatus and method for confining and decontaminating soil |
Jul. 18, 1989 |
| 4846934 |
Soil and groundwater remediation system |
Jul. 11, 1989 |
| 4846966 |
Trash rack |
Jul. 11, 1989 |
| 4844807 |
Insitu hazardous waste treating apparatus and method of using same |
Jul. 4, 1989 |
| 4844813 |
System and process for treatment of biodegradable waste |
Jul. 4, 1989 |
| 4842751 |
Method and apparatus for filtration using washable filter bag for water and wastewater treatment |
Jun. 27, 1989 |
| 4840729 |
Oil spill recovery apparatus |
Jun. 20, 1989 |
| 4839051 |
Method for treating water |
Jun. 13, 1989 |
| 4839061 |
Method and apparatus for treatment of hazardous material spills |
Jun. 13, 1989 |
| 4836891 |
Self-contained oil well salt water concentration system |
Jun. 6, 1989 |
| 4834177 |
Unidirectional filter for hydraulic systems |
May. 30, 1989 |
| 4830755 |
Process and apparatus for purifying oil contaminated ground water |
May. 16, 1989 |
| 4828696 |
Water aeration apparatus |
May. 9, 1989 |
| 4824287 |
Septic system |
Apr. 25, 1989 |
| 4824562 |
In well separator for heavier liquid |
Apr. 25, 1989 |
| 4824572 |
Method and apparatus for treating household waste water |
Apr. 25, 1989 |
| 4821800 |
Filtering media for controlling the flow of sand during oil well operations |
Apr. 18, 1989 |
| 4822486 |
Rotary self-cleaning strainer |
Apr. 18, 1989 |
| 4822579 |
Device for the deacidification of water |
Apr. 18, 1989 |
| 4818390 |
Apparatus for detoxification of lagoons |
Apr. 4, 1989 |
| 4816146 |
Water and oil mixture separator |
Mar. 28, 1989 |
| 4810131 |
Landfill leachate collection and leak detection sump system |
Mar. 7, 1989 |
| 4810377 |
Clarification device |
Mar. 7, 1989 |
| 4807373 |
Loop circuit dredging apparatus |
Feb. 28, 1989 |
| 4808304 |
Apparatus for the dewatering of phosphate slimes |
Feb. 28, 1989 |
| 4808305 |
Apparatus for sludge pond treatment |
Feb. 28, 1989 |
| 4806043 |
Method and device for drainage of borders of all stabilized civil engineering areas or of adjacent borders of a structure |
Feb. 21, 1989 |
| 4806251 |
Oscillating propeller type aerator apparatus and method |
Feb. 21, 1989 |
| 4803054 |
Asymmetric heat-exchange reaction apparatus for effecting chemical reactions |
Feb. 7, 1989 |
| 4793418 |
Hydrocarbon fluid separation at an offshore site and method |
Dec. 27, 1988 |
| 4792408 |
Method and apparatus for enhancing chemical reactions at supercritical conditions |
Dec. 20, 1988 |
| 4789486 |
Water desalinization process |
Dec. 6, 1988 |
| 4789487 |
Septic tank with integral direct distribution system |
Dec. 6, 1988 |
| 4779682 |
Method for the grit-free withdrawal of water from a well and also a device suitable therefor |
Oct. 25, 1988 |
| 4765914 |
Method of and apparatus for reduction of turbidity in a body of fluid |
Aug. 23, 1988 |
| 4753737 |
Recovery method for settled black liquor |
Jun. 28, 1988 |
| 4750454 |
Manure digester and power generating system |
Jun. 14, 1988 |
| 4749479 |
Apparatus for separation of liquids and solids using fabrics |
Jun. 7, 1988 |
| 4749497 |
Method and apparatus for treatment of acidic water |
Jun. 7, 1988 |
| 4744896 |
Filter apparatus for water wells |
May. 17, 1988 |
| 4744897 |
Sweeper type apparatus for clearing the deposition formed on the bottom of a pond |
May. 17, 1988 |
| 4741386 |
Fluid treatment apparatus |
May. 3, 1988 |
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