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Class Information
Number: 210/284
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > Spaced beds
Description: Apparatus which comprises a plurality of beds of particulate material which are spaced from each other.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5972216 |
Portable multi-functional modular water filtration unit |
Oct. 26, 1999 |
| 5965016 |
Fluidized bed aquarium filtration system |
Oct. 12, 1999 |
| 5948253 |
Three layer hydrocarbon filter |
Sep. 7, 1999 |
| 5944989 |
Split-flow water filtration apparatus |
Aug. 31, 1999 |
| 5938933 |
Condensate drain pan for HVAC units |
Aug. 17, 1999 |
| 5928506 |
Water purifier for drinking water |
Jul. 27, 1999 |
| 5908558 |
Method and apparatus for removing contaminants from fluid columns |
Jun. 1, 1999 |
| 5895570 |
Modular filtering system |
Apr. 20, 1999 |
| 5873997 |
Bioreactor and method of measuring contaminants in an aqueous environment |
Feb. 23, 1999 |
| 5873996 |
Community drinking water purification system |
Feb. 23, 1999 |
| 5868924 |
Water purifier |
Feb. 9, 1999 |
| 5865998 |
Receiver-dryer assembly and desiccant bag therefor |
Feb. 2, 1999 |
| 5866009 |
Apparatus for purifying water from organic halides contained therein |
Feb. 2, 1999 |
| 5853578 |
Method for biological purification of liquids and biological filter for purification of liquids |
Dec. 29, 1998 |
| 5851389 |
Apparatus for removing a contaminant from a fluid stream |
Dec. 22, 1998 |
| 5846411 |
Single-phase fluid distributor-mixer-extractor for beds of granular solids |
Dec. 8, 1998 |
| 5843308 |
Wastewater management system |
Dec. 1, 1998 |
| 5833846 |
High-purity water producing apparatus utilizing boron-selective ion exchange resin |
Nov. 10, 1998 |
| 5827427 |
Tank assembly |
Oct. 27, 1998 |
| 5820762 |
Filter insert for a storm drain |
Oct. 13, 1998 |
| 5807488 |
Exchangeable filter medium container and method of connecting and recycling such containers |
Sep. 15, 1998 |
| 5800707 |
Water filter |
Sep. 1, 1998 |
| 5800709 |
Biological aerated filters |
Sep. 1, 1998 |
| 5776346 |
Method and apparatus for making water having purified and activated functions |
Jul. 7, 1998 |
| 5776340 |
Apparatus for minimizing wastewater discharge |
Jul. 7, 1998 |
| 5766465 |
Water treatment apparatus |
Jun. 16, 1998 |
| 5755960 |
Distributor allowing independent injection and/or removal of fluids |
May. 26, 1998 |
| 5718015 |
Mobile power wash device with water reclamation and hydrocarbon removal apparatus |
Feb. 17, 1998 |
| 5681454 |
Liquid processing plant |
Oct. 28, 1997 |
| 5676826 |
Fluid-solid contacting apparatus |
Oct. 14, 1997 |
| 5670046 |
Treatment of nutrient-rich water |
Sep. 23, 1997 |
| 5653944 |
Slurry filtration device and flue-gas desulfurization system |
Aug. 5, 1997 |
| 5645725 |
Process and device for the biological treatment of organically polluted waste water and organic waste |
Jul. 8, 1997 |
| 5635063 |
Water treatment apparatus |
Jun. 3, 1997 |
| 5632885 |
Hydrogen peroxide removal equipment capable of treating both waste water and waste gas |
May. 27, 1997 |
| 5618419 |
Filter cartridge with back structure defining a weir |
Apr. 8, 1997 |
| 5599455 |
Detergent-free washing water, method and apparatus for making the washing water, and water/oil separation method for separating matters emulsified with the washing water into water and oil pha |
Feb. 4, 1997 |
| 5599443 |
Apparatus for waste water treatment using charcoal biologically activated |
Feb. 4, 1997 |
| 5595665 |
Process vessel head flush apparatus |
Jan. 21, 1997 |
| 5580445 |
Continuous ion exchange apparatus |
Dec. 3, 1996 |
| 5569380 |
Portable water filtering device |
Oct. 29, 1996 |
| 5562824 |
Gravity water purifier |
Oct. 8, 1996 |
| 5552057 |
Water-purifying device |
Sep. 3, 1996 |
| 5552043 |
Water conditioning system |
Sep. 3, 1996 |
| 5547589 |
Water recovery from a septic tank |
Aug. 20, 1996 |
| 5525223 |
Apparatus for introducing an agent into a liquid or gas at a controlled rate |
Jun. 11, 1996 |
| 5518797 |
Marine vessel fuel spill prevention device |
May. 21, 1996 |
| 5518613 |
Portable water purifying and drinking device |
May. 21, 1996 |
| 5507944 |
Storm water drainage filter system |
Apr. 16, 1996 |
| 5468373 |
Multiple-effect water treatment apparatus |
Nov. 21, 1995 |
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