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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8137547 | Fluid treatment tank and a well fluid processing system comprising such a tank A fluid treatment tank for use in a well fluid processing system. The tank is divided into at least three compartments, including an oil treatment compartment for receiving oil from a separator vessel of the well fluid processing system so as to allow stabilization ... | 03/20/2012 |
| 7943040 | Wastewater treatment and recycling system A system and process for removing contaminants from wastewater where the wastewater is treated into a cleaned water that can be reused or discharged into the environment. The wastewater is transported through purification sections, depending on the system including ... | 05/17/2011 |
| 7727389 | System for removing hydrocarbons and contaminates A system for removing hydrocarbon and heavy metals from dirt, coal tar, sludge, slurries and aqueous particulates having three mobile units including: a hydrocarbon removal mobile unit, a heating and power support unit, and a clarifying mobile unit. ... | 06/01/2010 |
| 7442239 | Fuel-conditioning skid A fuel-conditioning skid for an engine. The fuel-conditioning skid includes an inlet that is connectable to a source to receive a flow of fuel containing undesirable compounds. An outlet is connectable to the engine to deliver a flow of fuel that is substantially fr... | 10/28/2008 |
| 7311799 | Hydrofluoric acid wastewater treatment method and device The invention provides a hydrofluoric acid wastewater treatment method that achieves efficient recovery of hydrofluoric acid from hydrofluoric acid wastewater and also achieves sufficient reduction in the hydrofluoric acid concentration of the dehydrofluorinated wat... | 12/25/2007 |
| 7291122 | Hemofiltration methods for treatment of diseases in a mammal A hemofiltration system and method to treat an Inflammatory Mediator Related Disease in a mammal, including chronic and acute diseases, include a hemofilter and an adsorptive device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal ... | 11/06/2007 |
| 7288192 | Wastewater treatment station in shipping container A standard 20 ft or 40 ft sea-freight shipping container is configured as a septic tank, or as an aerobic trickle filter station. The shipping-container is lined with a watertight shell or liner. The liner may be a preferabricated separate structure inserted into th... | 10/30/2007 |
| 7252760 | Waste liquid processing method and waste liquid processing apparatus using the same A waste liquid processing method comprising a solvent separation process for separating a chlorine-based organic solvent contained in a waste liquid; a first vaporization process that includes vaporization of the chlorine-based organic solvent remaining in the waste... | 08/07/2007 |
| 7244353 | Method of and system for fluid purification A method of and system for purifying fluid of an internal combustion engine or hydraulic system utilizes an evaporation chamber separate from a filtering chamber. A metering valve may be oriented between the filtering chamber and the evaporation chamber to control t... | 07/17/2007 |
| 7163619 | Water supply system and multifunctional water supply tank The invention discloses a multifunctional water supply tank with pressure-stabilized water storage and quality-distinguished supply of service and potable water, which includes a service water storage room with a water inlet and a water outlet, a potable water stora... | 01/16/2007 |
| 7153285 | Medical fluid heater using radiant energy An in-line fluid heater for heating fluid, such as dialysis fluid for use in dialysis therapy is provided. The fluid heater is a dual heater having a primary infrared heater and a secondary plate heater. A controller is operatively connected to the infrared heater a... | 12/26/2006 |
| 7122149 | Apparatus and method for continuous depyrogenation and production of sterile water for injection A fluid processor, suitable for the production of sterile water for injection, having a processor assembly and a process control system comprising a pump, a flow splitter, flow restrictors and a pressure relief valve. In a preferred embodiment, the processor assembl... | 10/17/2006 |
| 7108784 | Apparatus for removal and destruction of ammonia from an aqueous medium Methods and apparatuses are provided for the removal and destruction of ammonia from an aqueous medium. The methods and apparatuses include the removal of ammonia from an aqueous medium by contact with either natural or synthetic zeolite. The spent zeolite is re-gen... | 09/19/2006 |
| 7094341 | Hydrate-based desalination/purification using permeable support member Processes and apparatus are disclosed for separating and purifying aqueous solutions such as seawater by causing a substantially impermeable mat of gas hydrate to form on a porous restraint. Once the mat of gas hydrate has formed on the porous restraint, the portion... | 08/22/2006 |
| 7041215 | System for composting-free disposal of organic wastes A system for composting-free disposal of organic waste and method thereof included a heating apparatus, a pretreatment apparatus, and a decomposition apparatus. The heating apparatus heats the pretreatment apparatus and the decomposition apparatus. The organic waste... | 05/09/2006 |
| 6902667 | Fluid treatment system A method and apparatus for the removal of suspended solids from water, waste water and other effluents is disclosed. The raw fluid being extracted is placed in a pressurized equalization chamber by a pumping apparatus. The fluid might be ground in advance to reduce ... | 06/07/2005 |
| 6866775 | Apparatus for treating metal-working fluid An apparatus for treating metal-working fluid comprises: a heating vessel for receiving and holding metal-working fluid for treatment; a heater for heating the metal-working fluid in the heating vessel; an agitator for agitating the metal-working fluid within the he... | 03/15/2005 |
| 6830682 | Controlled cooling of input water by dissociation of hydrate in an artificially pressurized assisted desalination fractionation apparatus Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Saline (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is mixed with... | 12/14/2004 |
| 6761820 | Paint-sludge filtration system featuring pool aeration using high-pressure discharge from filter vacuum producer A paint overspray particulate filtration system includes a collection tank, a floatation consolidation tank, and a vacuum filter assembly having a filter medium that traverses a pair of vacuum chambers. A positive displacement vacuum producer for the first vacuum ch... | 07/13/2004 |
| 6749752 | System for removing oil from foodstuffs using a membrane filter A process and system for extracting a solute from a solid material, such as oil from oil-bearing foodstuffs, utilize a substantially tubular membrane filter to separate a mass of the extracting medium and the foodstuffs into a miscella and foodstuffs of reduced oil ... | 06/15/2004 |
| 6733667 | Desalination using positively buoyant or negatively buoyant/assisted buoyancy hydrate Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Saline (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is mixed with... | 05/11/2004 |
| 6709595 | Method and installation for setting in adsorbed state on a porous support active compounds contained in a product The invention concerns a method and an installation for setting in adsorbed state, on a porous support, compounds contained in a product comprising a first step which consists in extracting the compounds by contacting the product with at least a solvent at supercrit... | 03/23/2004 |
| 6641722 | System for removing silicone oil from waste water treatment plant sludge A method of removing silicone oils from waste water generated by a silicones manufacturing plant including the step of centrifuging the waste water to concentrate silicone oil contaminated solids while removing the silicone oils. The silicone oil contamin... | 11/04/2003 |
| 6610210 | Disposable cartridge for on-premises water treatment system A disposable cartridge device is provided for use in a heated cartridge water treatment system in which particles, formed by the heat-induced reaction of bicarbonates in the water, can be efficiently collected in non-turbulent particle settling zones. The... | 08/26/2003 |
| 6589422 | Apparatus and method for extracting biomass Discloses is apparatus for extracting biomass from a biomass supply, including a hollow vessel in which is established a countercurrent flow of biomass in the form of liquid or particles of biomass entrained in a liquid and solvent. The vessel includes an... | 07/08/2003 |
| 6585886 | Aerobic microbiological wastewater treatment reactor A wastewater treatment reactor includes an upper chamber 4 biomass therein and a lower chamber including a combination filtering/aerating unit 6 having a gas inlet 9 and a discharge outlet 10 for purified water. In operation, wastewater enters the upper r... | 07/01/2003 |
| 6565744 | Waste water cleaning system The present invention provides treatment of wastewater containing oil, organic and inorganic industrial compounds, urea, and e.t.c. The resulting products will be purified water, dry fertilizer, pure carbomide, uncontaminated gas and liquid fuel, and othe... | 05/20/2003 |
| 6562234 | Land-based desalination using positively buoyant or negatively buoyant/assisted buoyancy hydrate Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Salt (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is m... | 05/13/2003 |
| 6517708 | Apparatus for separating oxides of heavy isotopes of hydrogen from water A process and apparatus for treating the heavy hydrogen isotope content of the contaminated water by contacting the contaminated water with a molecular separation material including a support medium carrying a plurality of hydration sites having associate... | 02/11/2003 |
| 6511604 | Method of treating a liquid material and treatment facilities The present invention relates to the techniques of treating a liquid material to be treated, which enables efficient fractional removal of toxic materials such as PCB in a liquid mixture. The treatment method of the invention comprises the step of permitt... | 01/28/2003 |
| 6478955 | Membrane magnetic separating apparatus Water to be treated is passed through a membrane (net), magnetic floc positioned in a portion below a level of the water to be treated is deposited to a surface of the membrane, and the surface of the membrane with the magnetic floc deposited is moved to ... | 11/12/2002 |
| 6372129 | Cleaning grease and oils from waste streams A process and apparatus for effecting the recovery of grease and oils from an aqueous waste stream is disclosed. This is accomplished by a combination of steps which include removing coarse food solids from the waste stream, allowing the oils to separate ... | 04/16/2002 |
| 6306307 | Pervaporation apparatus and method Pervaporation or vapor permeation apparatus and method having a separator module located in an unpressurized tank. The module has a plurality of stacked, disk-like separator elements mounted on a central, axial permeate removal tube. The separator element... | 10/23/2001 |
| 6180001 | Apparatus for separating light and heavy phase liquids A quenchant management system having a quenchant separation module for separating a heavy phase polymer such as polyalkylene glycol (PAG) from water. The quenchant separation module includes a heating section for elevating the temperature of the fluid to ... | 01/30/2001 |
| 6156191 | Apparatus for removing selenium from refinery process water and waste water streams The present invention provides an efficient and highly effective method of removing dissolved selenium from a variety of refinery process water and wastewater streams. The present invention also provides a new and effective method of oxidizing selenium an... | 12/05/2000 |
| 6001246 | Process for the reclamation of process water from process wastewater generated in the battery manufacturing industry and other metals related industries A process wastewater treatment plant, and a process relating thereto, which converts process wastewater generated in battery manufacturing and the like into clean process water and sodium sulfate salt by treating the process wastewater to remove impuritie... | 12/14/1999 |
| 5988283 | Vertical combined production facility A Vertical Combined Production Facility, or gas-well production system, in which the separation of each phase (hydrocarbon gas, hydrocarbon liquids, and produced water), dehydration of natural gas, removal of minute traces of water from the hydrocarbon li... | 11/23/1999 |
| 5944986 | Liquid purification apparatus A magnetic separation apparatus which coagulates substances to be removed in liquid by adding magnetic substances and a flocculent to liquid to be treated and adsorbs and captures the thus obtained magnetic aggregates by utilizing magnetic field of magnet... | 08/31/1999 |
| 5876596 | Apparatus for treating water An apparatus for treating water to produce potable water includes a filter connected to an inlet of a heating unit in turn connected at an outlet to an input of a container with cooling components for separating out heavy water. The heavy water separator ... | 03/02/1999 |
| 5785847 | Microwave assisted cleaning and reclamation of industrial wastes The present invention provides a process and apparatus for cleaning and reclamation of an industrial waste containing oily metallic solids by magnetically concentrating the oily magnetic solids, mixing the concentrated solids with a chemical release agent... | 07/28/1998 |
