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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 |
| 5520481 |
Drain field system |
May. 28, 1996 |
| 5520810 |
Water filtering using zebra mussels |
May. 28, 1996 |
| 5513928 |
Transfer pad system |
May. 7, 1996 |
| 5514267 |
Apparatus for dissolving a gas into and mixing the same with a liquid |
May. 7, 1996 |
| 5510022 |
Pond aerator |
Apr. 23, 1996 |
| 5505840 |
Chlorinator-filter system for sewage treatment plants |
Apr. 9, 1996 |
| 5505848 |
Fermentation apparatus |
Apr. 9, 1996 |
| 5501753 |
Stabilized fluid barrier member and method for making and using same |
Mar. 26, 1996 |
| 5500136 |
Simulated gold and gemstone mining operation |
Mar. 19, 1996 |
| 5498331 |
Tank interceptor |
Mar. 12, 1996 |
| 5492619 |
Automatic grease collection system |
Feb. 20, 1996 |
| 5492635 |
Septic tank effluent filtering method |
Feb. 20, 1996 |
| 5490743 |
System for installing material in the ground |
Feb. 13, 1996 |
| 5490922 |
Waste water plant with built-in mesh screen unit |
Feb. 13, 1996 |
| 5487622 |
System for treating polluted groundwater |
Jan. 30, 1996 |
| 5482620 |
Permeable ditch underwater water purification apparatus |
Jan. 9, 1996 |
| 5482621 |
Septic tank outlet filter |
Jan. 9, 1996 |
| 5478464 |
Apparatus for the biodegradation of organic contaminants in a mass of particulate solids |
Dec. 26, 1995 |
| 5478473 |
Method and device for purifying water |
Dec. 26, 1995 |
| 5476595 |
Zebra mussel control device for water intakes |
Dec. 19, 1995 |
| 5474685 |
Apparatus and method for detecting and recovering immiscible liquids of different densities |
Dec. 12, 1995 |
| 5462657 |
Aeration system |
Oct. 31, 1995 |
| 5462666 |
Treatment of nutrient-rich water |
Oct. 31, 1995 |
| 5460227 |
Undersea integrated repressurization system and method |
Oct. 24, 1995 |
| 5456550 |
Procedure for delivering a substance into an aquifer |
Oct. 10, 1995 |
| 5456837 |
Multiple cyclone apparatus for downhole cyclone oil/water separation |
Oct. 10, 1995 |
| 5452546 |
Drain guard |
Sep. 26, 1995 |
| 5451315 |
Ore pass shaff water drainage means |
Sep. 19, 1995 |
| 5449466 |
Apparatus and method for photocatalytic treatment of a fluid |
Sep. 12, 1995 |
| 5441632 |
Septic system with above-ground septic tank |
Aug. 15, 1995 |
| 5441638 |
Apparatus for separating particles suspended in a flowing liquid |
Aug. 15, 1995 |
| 5439594 |
Method for subsurface vapor extraction |
Aug. 8, 1995 |
| 5437786 |
Stormwater treatment system/apparatus |
Aug. 1, 1995 |
| 5435910 |
Emulsion breaking system for offshore facilities |
Jul. 25, 1995 |
| 5433845 |
Flow control bypass basin apparatus |
Jul. 18, 1995 |
| 5433854 |
Method for preventing erosion in waste water lift stations and treatment facilities |
Jul. 18, 1995 |
| 5427679 |
Septic system filter assembly, filter arrangement |
Jun. 27, 1995 |
| 5421999 |
Floating nitrification reactor in a treatment pond |
Jun. 6, 1995 |
| 5422002 |
Treatment of water to remove gas vacuolate cyanobacteria |
Jun. 6, 1995 |
| 5419838 |
Groundwater storage and distribution system having a gallery with a filtering means |
May. 30, 1995 |
| 5413706 |
Wastewater treatment apparatus with an outer filtration unit and an inner settling unit |
May. 9, 1995 |
| 5413715 |
Incinerator improvements |
May. 9, 1995 |
| 5413721 |
Backflush filter system for downhole pumps |
May. 9, 1995 |
| 5409601 |
Floating aquatic plant treatment system |
Apr. 25, 1995 |
| 5409604 |
Closure for a wastewater treatment mechanism |
Apr. 25, 1995 |
| 5405539 |
Storm drain filter system |
Apr. 11, 1995 |
| 5403476 |
Arrangement for removing impurities from ground water |
Apr. 4, 1995 |
| 5398757 |
Mono-well for soil sparging and soil vapor extraction |
Mar. 21, 1995 |
| 5397466 |
Circulating filter and aerator system for use in aquaculture |
Mar. 14, 1995 |
| 5393418 |
Water intake, in particular for industrial installations |
Feb. 28, 1995 |
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