Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7300575 | Portable filter system A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base... | 11/27/2007 |
| 7297274 | Fixed-film anaerobic digestion of flushed waste An apparatus for the fixed-film anaerobic digestion of flushed livestock manure includes an enclosed digester tank (fixed or flexible roof), internal media for biofilm development, a biogas collection and flare system, various pumps, and hydraulic control systems. T... | 11/20/2007 |
| 7291277 | Method and device for cleaning the fountain solution of a printing press A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fo... | 11/06/2007 |
| 7291267 | Molecular separator The present invention discloses a method and apparatus for separating particles and dissolved matter from a fluid stream. Specifically, the present invention includes a first pressure source which transports untreated fluid into a separator annulus with a filter ele... | 11/06/2007 |
| 7288197 | Biological membrane filtration system for water treatment and a water treatment process The present invention discloses a biological membrane filtration wastewater treatment system including a porous biological filtration bed zone and a membrane separation zone. The porous biological filtration bed zone has the dual function of providing biological tre... | 10/30/2007 |
| 7285212 | Method and apparatus for treatment of wastewater employing membrane bioreactors Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater are described. A bioreactor system is described having an equalization system, a membrane bioreactor system, and a controller. Aeration systems for a membrane... | 10/23/2007 |
| 7282143 | Septic tank A septic tank includes a chamber, an inlet through which waste water enters the chamber, an outlet, and an outlet pipe mounted to the outlet. At least one partitioning member is mounted in the chamber and separates the chamber into at least a first subchamber adjace... | 10/16/2007 |
| 7279106 | Adsorbent and method for adsorbing a chemokine in body fluid A device for body fluid purification, comprising a container having an inlet and an outlet for a fluid and a means for preventing an adsorbent from flowing out of the container and an adsorbent charged in the container, the adsorbent comprising a spherical hydrogel,... | 10/09/2007 |
| 7279100 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a mixed liquor suspended solids to a high rate clarification stage, forming a clarifier effluent, a first waste activated sludge stream, and a return wa... | 10/09/2007 |
| 7276160 | Method and apparatus for metal removal by ion exchange The present invention provides a method for selectively removing metal ions of interest from a solution (12), such as the wastewater from a chemical mechanical polishing process. The method comprises contacting a solution (12) containing solid particle... | 10/02/2007 |
| 7276165 | Method and plant for biological treatment of aqueous effluents for purification thereof The invention relates to a method for the biological treatment of effluents contaminated with impurities of urban or industrial origin, characterised in employing a single aeration tank (1) with a high mass charge in which the raw effluent or mechanically pre... | 10/02/2007 |
| 7276154 | Settling grid separator A settling grid separator apparatus and method of use which provides deep dehydration of high flow rate sludge in an environmentally friendly and energy efficient manner. The apparatus and method comprise and utilize an efficient mixing of the sludge with a floccula... | 10/02/2007 |
| 7270751 | Method for treatment of sewage plant sludges by a fungal process The invention relates to a method for treatment of predominantly urban sewage plant sludges, characterised in comprising a step for treatment of the sludges by microfungi. ... | 09/18/2007 |
| 7267774 | Fuel and by-products from fermentation still bottoms The disclosed invention is an improved method for treating ethanol distillation still bottoms by recovering, through solids separation and pressurized membrane filtration, potable water from still bottoms for human consumption by bottling or for reuse, and concentra... | 09/11/2007 |
| 7264714 | Protein skimmer A protein skimmer for use in purification of water by culture of fish or other water organisms in a reservoir, aquarium or (2) with a circulation system comprising one or more discharge tubes (4) for water from the reservoir (2) to a pump (5 | 09/04/2007 |
| 7258790 | Controlled eutrophication system and process A controlled eutrophication system and process are disclosed. The system includes the combination of a partitioned aquaculture system in conjunction with an anaerobic digester. Wastewater containing pollutants, such as nitrogen and phosphorus, are fed to the partiti... | 08/21/2007 |
| 7255789 | Method and apparatus for liquid purification An apparatus and method for purifying a liquid including: reaction chambers that utilizes KDF 85 or KDF 55 or other media in turbulence with the liquid, a first fine collective filtration unit, a first laser photolytic light ch... | 08/14/2007 |
| 7250230 | Water filter for an electrochemical fuel cell system Silica may form as a degradation product in an electrochemical fuel cell system and may be found within the water management subsystem thereof. The silica may polymerize and/or react to form insoluble metal silicates which may lead to reduced lifetime or performance... | 07/31/2007 |
| 7244356 | Autotrofic sulfur denitration chamber and calcium reactor The disclosure is directed to systems and methods for conditioning water in an environment for holding aquatic life. The systems include various chambers for processing water, such as a chamber containing a media capable of supporting aerobic bacteria; a chamber con... | 07/17/2007 |
| 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 |
| 7232525 | Automatic tank cleaning system An automatic tank cleaning system includes a water recycling unit having a weir therein and a conically-shaped bottom, a cutting box having a portable weir therein, a hydrocyclonic separator, and a mud tank. Tank slop is pumped from the mud tank to the water recycli... | 06/19/2007 |
| 7229560 | Sack-based processes for recovering oil floating on water One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have their lo... | 06/12/2007 |
| 7226539 | Bionest reactor for the application of anaerobic wastewater treatment and bioenergy recovery A method of treating wastewater using an anaerobic bioreactor which contains a “bio-nest” structure to retain the microbial content and improve digestion efficiency is disclosed. The bionest system results in a longer SRT, good sludge mixing, and reduced wash-ou... | 06/05/2007 |
| 7226542 | Fluid treatment apparatus Portable personal water purifier with a microdischarge array sealed with a radiation emitter, preferably Xel, slightly above atmospheric or water pressure in a closely-configured treatment chamber. Each array is a polyimide film separating a copper layer or mesh cat... | 06/05/2007 |
| 7226536 | Portable water filtration device A portable water filtration device includes a liquid-tight filter container and a filtration device mounted in the liquid-tight container. The filtration device includes an inlet opening extending through one of the walls and a first filtration device in liquid tran... | 06/05/2007 |
| 7217368 | Method and apparatus for liquid treatment with combined electronic and centrifugal processes to remove contaminants An apparatus and method for treating dirty water or other liquids containing particles of varying size includes a magnetic treatment unit and a centrifugal separator through which the liquid flows as a stream in sequence. The magnetic treatment unit causes very smal... | 05/15/2007 |
| 7217358 | Ultraviolet radiation treatment of unwanted microorganisms A method and apparatus are described for killing or inhibiting growth of undesired microorganisms using ultraviolet radiation. A vortex turbulated flow of water is established within a vertical tube through which is transmitted ultraviolet radiation. In a preferred ... | 05/15/2007 |
| 7201848 | Methods and apparatus for separation of particles The present invention is directed to a method and system that separates first particles from second particles, or white blood cells from red blood cells, by sedimentation in a fluid chamber with debulking of one of the first or second particles or red blood cells th... | 04/10/2007 |
| 7198716 | Phased activated sludge system The inventions describe a phased activated sludge treatment system that incorporates elements of batch treatment technology into a flow-through treatment process. Control of mixing and aeration systems are independent to facilitate the operation of the main reactor ... | 04/03/2007 |
| 7195712 | Wastewater treatment apparatus and method for removing nitrogen and phosphorus Provided is a wastewater treatment apparatus for removing nitrogen and phosphorus having an anaerobic tank, an anoxic tank, an aerobic tank and a clarifier, wherein the aerobic tank includes has a baffle installed at one side thereof to form a dissolved oxygen reduc... | 03/27/2007 |
| 7182856 | Stormwater treatment train A system is provided for treating runoff water in which there is a separator and a filter for cleaning the water. A reservoir is provided to hold large quantities of water during prolonged rainstorms. The output of the reservoir is fed to the filter. The rate of flo... | 02/27/2007 |
| 7179375 | Diffuser/emulsifier for aquaculture applications A method of treatment of water in an aquatic environment. Water is first pumped from a reservoir to a first mixing station. An inert gas is introduced into the pumped water at the first mixing station to provide inert gas saturated water, which inert gas saturated w... | 02/20/2007 |
| 7172699 | Energy efficient wastewater treatment for nitrogen and phosphorus removal In a wastewater treatment plant, the liquid side of the plant has preferably four stages for nitrification and/or denitrification, prior to further treatment such as a clarifier. Energy requirements are reduced by reducing aeration requirements. Four or more tanks/z... | 02/06/2007 |
| 7172688 | Mixed immiscible liquids vacuum, separation, and disposal method and system (Mod 1) A system to collect by vacuum conveyance, separate, and discharge two mixed immiscible liquids with different specific gravities comprising a prefilter vessel 200, a vacuum tank 100, an optional heavy phase intermediate separation stage 40, and ... | 02/06/2007 |
| 7166220 | Systems and methods for organic wastewater treatment A system and method for organic wastewater treatment through denitrification and nitrification processes. The system for treating organic wastewater includes a multistage treatment tank having at least two stages in series. Each stage has a denitrification tank and ... | 01/23/2007 |
| 7163632 | System and method for oxygenation for wastewater treatment A fluid treatment system and method for dissolving a gas into a fluid and subsequently allowing microbial or chemical reactions with the fluid mixture to decontaminate the fluid. The system comprises a pressurized gas transfer reactor, a depressurization device, a m... | 01/16/2007 |
| 7163629 | System and method for enhanced wastewater treatment Enhanced wastewater treatment utilizing directed energy to promote degradation of sludge is disclosed. The directed energy is delivered in a stream circulating to and from an anaerobic digester. The directed energy incorporates mechanical shear energy, ultrasonic en... | 01/16/2007 |
| 7163628 | Water ozonation and bioremediation system and associated methods A method of treating water includes exposing influent comprising water desired to be treated to ozone in sufficient quantity to disrupt cell walls of undesired microorganisms therein, thereby releasing nutrients from within the microorganisms in a form amenable to b... | 01/16/2007 |
| 7160472 | Treatment of a waste stream through production and utilization of oxyhydrogen gas Methods and systems for treating a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements wat... | 01/09/2007 |
| 7160457 | Digester cover An anaerobic digester for use in wastewater treatment systems having a fixed cover including a central tower for controlling gas and foam. A constant operating level is maintained in the digester by utilization of an overflow weir located in the tower. The fixed cov... | 01/09/2007 |
