Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7097736 | Dairy wastewater treatment A process and apparatus for recycling dairy wastewater wherein the wastewater is supplied to at least one first evaporation apparatus to produce a water distillate and sludge. The sludge is then supplied to at least one second evaporation apparatus arranged in serie... | 08/29/2006 |
| 6906234 | Continuous method and heat pump device for enriching liquid low-concentrated reaction mixtures A continuous method and a heat pump device for enrichment of low-concentrated reaction mixtures resulting from the production of cycloalkanedienes by means of catalytic metathesis of cyclic aliphatic alkenes and cyclooligomers in organic reaction media with reduced ... | 06/14/2005 |
| 6846390 | Methods for using hydrophobic liquid to compress steam Methods for using a hydrophobic liquid, such as mineral oil, to compress steam include using a compressor to compress a mixture of steam and the hydrophobic liquid. One embodiment includes the steam to be compressed coming from a boiling aqueous solution in an evapo... | 01/25/2005 |
| 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 |
| 5944950 | Process for the final evaporation of black liquor The process for the final evaporation has at least two evaporation appliances. These appliances are coupled in series with respect to the black liquor and in parallel with the live steam (primary steam), which drives the evaporation, and with the secondar... | 08/31/1999 |
| 5935388 | Distillation plant with a heat pump A distillation plant includes a heat pump whose working fluid is compressed by a vapor jet compressor. A collection location for a liquid is arranged in the stripper part of a distillation column of the plant. At least a portion of the collected liquid is... | 08/10/1999 |
| 5766412 | System and method of waster water reduction and product recovery A system is disclosed for reducing the amount of waste water and recovering reusable constituents from a waste stream comprising at least two constituents having different relative volatilities. The system includes a vapor thermocompression evaporator, in... | 06/16/1998 |
| 5744009 | Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator An improved urea recovery process is presented. In the improved process, multiple vacuum rated surface condensers used to condense water vapor evolved during urea vacuum evaporation/concentration are replaced by a direct contact cooler/absorber to obtain ... | 04/28/1998 |
| 5366514 | Salt plant evaporation This invention relates to an evaporative salt plant installation including methods of operation and apparatus which produce high purity salt economically and in high yield comprising the combination of a gas turbine which drives a vapor compressor, whose ... | 11/22/1994 |
| 4783242 | Distillation system and process A distillation system and process for removing vaporizable components from an aqueous medium including a distillation column for receiving an aqueous medium containing vaporizable components and passing steam through the column such that the steam directl... | 11/08/1988 |
| 4710272 | Distilling apparatus An apparatus for distilling a source liquid which utilizes a substantially vertical liquid column. The liquid column is contained by a tubular container closed at the top and open at the bottom. The open bottom of the tubular container is submerged within... | 12/01/1987 |
| 4698136 | Process for the continuous production of boiler feed water A process for the continuous production of boiler feed water from process waters in the oil extraction industry during which salts and hydrocarbons are removed from the water, without Fe++ precipitating. The heavy hydrocarbons are mechanically... | 10/06/1987 |
| 4695349 | Process and apparatus for distillation and/or stripping A process is disclosed for distillation and/or stripping in a column, the lower portion of which is heated and the upper portion of which is cooled. The heating and cooling facilities thereof are coupled with each other by means of a heat pump system. In ... | 09/22/1987 |
| 4687546 | Method of concentrating slurried kaolin A beneficiated kaolin clay slurry is concentrated from a solids content of about 50% to 60% by weight to a solids content of at least 65% by weight by evaporating water therefrom by passing the aqueous clay slurry through one or more non-contact evaporate... | 08/18/1987 |
| 4668345 | Desalination apparatus and method for recovering fresh water Desalination apparatus comprising a vessel, an evaporation surface for receiving saline water in the vessel, a condensation chamber arranged in the vessel beneath the evaporation surface, an evaporation chamber arranged in the vessel above the evaporation... | 05/26/1987 |
| 4561941 | Essence recovery process A highly efficient essence recovery process associated with a continuous process which utilizes mechanical vapor recompression for concentrating fruit juices. In one embodiment of this invention the essence is extracted from a juice by introducing feed ju... | 12/31/1985 |
| 4536258 | Distilling apparatus operating on the thermocompressor principle Distillation apparatus is disclosed which operates according to the so-called thermocompressor principle and which incorporates tubular means disposed within the apparatus to define an inner conduit and an outer annular flow duct, means for dividing the o... | 08/20/1985 |
| 4434027 | Method for the evaporation of a liquid solution using mechanical compression A liquid solution is passed through a multi-stage evaporation plant while using recirculated vapor, fed through a mechanical compressor in order to increase the pressure and temperature of the vapor. The plant comprises a number of evaporators connected in ser... | 02/28/1984 |
| 4428799 | Production of concentrated alcohol and distillery slop Concentrated alcohol and distillery slop are produced from fermented beer with a reduced amount of energy by use of a multiple effect distillery slop evaporator in which evaporator vapors from one or more effects are used to strip alcohol from the ferment... | 01/31/1984 |
| 4420373 | Energy conversion method and system A mechanical energy conversion method and system for the restoration of dissipated heat energy, contained in natural or artificial water bodies at or near ambient temperatures, to industrial process heat, mainly in the form of steam up to 200°-400° C. T... | 12/13/1983 |
| 4406869 | Process for producing anhydrous sodium carbonate crystal An anhydrous sodium carbonate crystal is produced by crystallizing a sodium carbonate hydrate crystal from an aqueous solution of sodium carbonate in a sodium carbonate hydrate crystallizing zone and transforming said sodium carbonate hydrate to an anhydr... | 09/27/1983 |
| 4381220 | Production of concentrated alcohol and distillery slop Concentrated alcohol and distillery slop are produced from fermented beer with a reduced amount of energy by employing a vapor recompression distillery slop evaporator in which evaporator vapors are used to strip alcohol from the fermented liquor before t... | 04/26/1983 |
| 4379734 | Multistage evaporator A multistage evaporator plant having combined vapor compressor and heat pump for recovery of the heat contained in the vapors. The evaporator section comprises several stages and a heat input, a condensate output and a vapor output. The vapor compressor c... | 04/12/1983 |
| 4371424 | Latent heat recirculating system The latent heat of condensation released by condensing a process vapor is captured in a fluid contained in a latent heat recirculating system; the captured heat is returned by the fluid to the body of process liquid for continued vaporization.... | 02/01/1983 |
| 4347098 | Solvent vapor recovery from a polymer solution A method and apparatus for recovering vapors from a polymer solution comprising liquid solvent and polymer.... | 08/31/1982 |
| 4328074 | Production of concentrated alcohol and distillery slop Concentrated alcohol and distillery slop are produced from fermented beer with a reduced amount of energy by employing a vapor recompression distillery slop evaporator in which evaporator vapors are used to strip alcohol from the fermented liquor before t... | 05/04/1982 |
| 4309243 | Vertical tube distillers In a new type of evaporator both a stream of cooling liquid and vapor are produced simultaneously. The cooling liquid is then used to compress and condense the vapor in an ejector-condenser. Heat of vaporization is recaptured in the ejector-condenser and ... | 01/05/1982 |
| 4303468 | Mechanical vapor recompression evaporators The present invention relates to a process for providing make-up heat in a mechanical vapour recompression evaporator (1, 8, 9). It includes using the evaporation vapour created in another evaporator (5) called make-up evaporator. The invention finds particula... | 12/01/1981 |
| 4282259 | Process for preparing an extract of hops A method of preparing an extract from hops comprises contacting the hops to be extracted with carbon dioxide in the liquid state to dissolve the matter to be extracted in the liquid carbon dioxide, heating the solution of extract to evaporate carbon dioxi... | 08/04/1981 |
| 4259160 | Vapor compression distiller and method A vapor compression distiller having a shell for enclosing a pair of heat exchange tube bundles each having one end connected to a steam chest and its other end connected to a condensate collecting chamber. A vapor compressor has its inlet connected to th... | 03/31/1981 |
| 4247371 | Precipitating scale-forming compounds from water, and forming fresh water Water containing dissolved compounds is preheated, and is then pressurized in stages of water pressure, while receiving a quantum of steam. Scale-forming compounds in the water are thermally precipitated, and clarified post-thermal water is formed. This i... | 01/27/1981 |
| 4239588 | Method of effectively utilizing thermal energy in spray drying The thermal energy required for spray drying a solution of a solid product in a volatile, liquid solvent is effectively utilized by partly converting the solvent to a gaseous phase in a multiple-effect evaporator and by spray drying the resulting concentr... | 12/16/1980 |
| 4145245 | Double-effect evaporator A double-effect evaporator comprises a first and a second effects and an external steam ejector, each of the effects having feed-liquid spray means, a bundle of heat-transfer tubes below the spray means and extending between headers, and a concentrated li... | 03/20/1979 |
