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New Patents
An apparatus for purifying drinking water by a combination of reverses osmosis, deionization by ion exchange resins, resin and final ...
An apparatus for purifying drinking water by a combination of reverses osmosis, deionization by ion exchange resins, resin and final passage through activated carbon. The components for reverse osmosis, de-ionization, and passage through active carbon, and a product water reservoir are housed in a cabinet suitable for placement in a home. Ionic impurities are removed by reverse osmosis through a cellulose acetate membrane which feeds the flux water to a mixed resin bed for deionization. Waste brine is removed from the reverse osmosis module by controlled leakage to maintain concentration at a low level. The product water is filtered through a cartridge of granular activated carbon prior to being stored in a product water reservoir. An attachment is connectable with the tap water faucet to provide tap water to the unit at main water supply pressure and to dispose of waste brine water and excess product water. Components are replaceable and available on the market.
4761132 OXYGEN ENRICHED COMBUSTION Mark J Khinkis assigned to Combustion Tec Inc A process and apparatus for oxygen-rich combustion wherein a first portion of about 5 to about 40 percent of the total fuel to be cracked and combusted is introduced to a cracking chamber where it is combusted and cracked at a temperature below about 2200 degrees C. to produce a cracked products mixture. Oxygen-rich gas of greater than about 30 volume percent oxygen is introduced to the cracking chamber in about 5 to about 50 percent of the stoichiometric requirement for complete combustion of the first portion of fuel introduced to that chamber. Cracked products mixture, a second remaining portion of fresh fuel and oxidizer having sufficient oxygen for substantially complete combustion of the combustible portion of the cracked products mixture and the fresh fuel is introduced to a combustion chamber wherein the combustible portion of the cracked products mixture and the fresh fuel is combusted. The process and apparatus provide a controllable, highly luminous, high temperature and high kinetic energy flame in the combustion chamber resulting in enhanced heat transfer rate to the furnace load, increased furnace specific production rate, increased furnace thermal efficiency, and reduced nitrogen oxides pollutant emissions.
4761965 EVAPORATIVE ROOF COOLING SYSTEM Stephen G Viner An evaporative roof cooling system for placement upon a roof surface exposed to relatively high levels of solar radiation. The system includes water distribution piping and a plurality of mist/spray nozzles positioned on the roof surface for supplying a uniform spray of water thereover to lay down a substantially uniform thin film of water on the roof surface. A solenoid-controlled valve controls the supply of water to the system over periods during which the temperature of the roof surface is measured to be within a predetermined temperature range. A thermistor, encapsulated in an expoxy block, is affixed to the roof surface and monitors and measures the actual roof temperature. Cooling systems control circuitry, in electric communication with the thermistor and the solenoidcontrolled valve, compares the electric resistance value developed by the thermistor and a range of current values related to the predetermined temperature range and directs the opening of such valve when the termister senses the high point temperature of such range and the closing of such valve when the thermister senses the low point temperature of such range whereby the mist/sprays of water discharged from the nozzles evaporatively cool the roof surface.
4765807 METHOD AND APPARATUS FOR THE OXYGEN ENRICHMENT OF WATER Norolf Henriksen, Notodden, Norway assigned to Norsk Hydro a s A system for the treatment of liquids, especially oxygen enrichment of water which is used for aquaculture purposes such as the breeding of fish, avoids gas bubbles in a water reservoir and makes it possible to freely treat fresh water and/or recirculated water for optimal temperature control and/or water removal. A water flow is joined with a flow of pure oxygen gas which is supplied from an oxygen tank containing liquid oxygen. The oxygen is led through an evaporator into a flow system forming a recirculating circuit with pipelines, and an oxygen enrichment device or reactor unit where water and oxygen are mixed to form a turbulent, foaming gas/liquid