Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8092688 | Method of treating water by ballasted flocculation/settling, which includes a continuous measurement of the ballast, and corresponding installation A method for treating water in a ballasted flocculation system comprises directing water into a ballasted flocculation zone and adding ballast and a flocculation reagent to the water to form a water-floc mixture. The water-floc mixture is directed into a settling zo... | 01/10/2012 |
| 8062529 | Method for water treatment by flocculation/settling using ballasted floc degritting of the sludge A method for treating water includes directing untreated water into a mixing zone in a water treatment system and mixing the untreated water with a flocculating agent and a ballast to form a ballast-floc mixture. Thereafter, the ballast-floc mixture is directed to a... | 11/22/2011 |
| 8017019 | Fluidized bed precipitator with optimized solids settling and solids handling features for use in recovering phosphorus from wastewater Improved fluidized bed precipitators (20, 46, 62, 74, 108, 112, 134, 168) especially useful for the treatment of waste waters containing soluble phosphorus are provided, having upright, primary fluidized bed sections (22, 48, 64, 76, 110, 114, 136) and... | 09/13/2011 |
| 8002991 | Dewatering method Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to hou... | 08/23/2011 |
| 7967990 | Hybrid chemical/mechanical dewatering method for inactivating and removing pharmaceuticals and other contaminants from wastewater A hybrid chemical/mechanical dewatering sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids agglomeration and disposal methods to meet operating constraints and ... | 06/28/2011 |
| 7964101 | Fluid treatment process Processes for treating drilling fluid by passing the fluid through a separator including a clarifying zone and a thickening zone, the clarifying zone having inclined plates and the thickening zone having at least one wall with an angle of less than about 60°. The s... | 06/21/2011 |
| 7906029 | Sludge thickening method A differential rate rotary thickener; a power detector which is disposed in a sludge receiver tank for thickened sludge thickened in the differential rate rotary thickener; a discriminator which receives an electric signal for a thickened sludge concentration detect... | 03/15/2011 |
| 7824552 | Mobile systems and methods of sufficiently treating water so that the treated water may be utilized in well-treatment operations A system is provided that includes: (a) a mobile platform; (b) an input pump operatively connected to be capable of pumping a treatment stream through the system; (c) a centrifugal separator operatively connected downstream of the input pump to centrifugally treat t... | 11/02/2010 |
| 7820055 | Process to maintain large clean recreational water bodies The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, such as lakes or artificial lagoons, with excellent color, transparency and cleanness properties at low cost, which comprises the following steps: | 10/26/2010 |
| 7820056 | Method of flocculating sedimentation treatment A coagulation sedimentation process for water to be treated in which an inorganic coagulant used in a purified water treatment system is limited, and remaining micro flocks and flocks are made greater in density and finer in particle size, thus obtaining clear water... | 10/26/2010 |
| 7811458 | Method for treating aqueous sludge, material so produced and the use thereof The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer flocculants and the use of materials obtained according to the inventive met... | 10/12/2010 |
| 7767092 | Decolorization method of colored effluent A method of decolorizing a colored effluent comprising (i) a colored substance; and (ii) a polyvalent carboxylic acid or a polyvalent aminocarboxylic acid, the method including the steps of: (a) controlling a hydrogen ion exponent (pH) of the colored effluent to be ... | 08/03/2010 |
| 7699991 | Apparatus and process for water conditioning A conditioning process and equipment are provided for removing hardness from water circulated in a system. A sidestream from such system is routed to a reaction chamber and back to the system. A conditioner is added to the sidestream water and in some embodiments is... | 04/20/2010 |
| 7695630 | Process for conditioning an aqueous solution for efficient colloidal precipitation An ionic conditioning process and molecular arrangement for removing colloids from an aqueous solution, where the aqueous solution is transported to and/or through several conditioning zones for purification. The process utilizes vessels within which stages of condi... | 04/13/2010 |
| 7658855 | Apparatus and process for water conditioning A conditioning process and equipment are provided for removing hardness from water circulated in a system, such as an evaporative cooling system. A sidestream from such system is routed to a reaction chamber and back to the system. A conditioner is added to the side... | 02/09/2010 |
| 7622047 | Fluidized bed wastewater treatment A fluidized bed reactor (14) for removing phosphorus and nitrogen from wastewater has a column comprising a number of sections. (15A, 15B, 15C, 15D) The diameter of the column changes stepwise between the sections. A flow velocity ... | 11/24/2009 |
| 7575691 | Method for cleaning contained bodies of water A composition and method for cleaning, sanitizing and maintaining contained bodies of water such as swimming pools, wading pools, fountains, ornamental ponds, etc. The composition includes pre-determined percentages of copper sulfate, zinc sulfate, and aluminum sulf... | 08/18/2009 |
| 7553423 | Method for treating aqueous sludge, material so produced and the use thereof The invention relates to a method for the accelerated dehydration of sludges in sludge disposal areas, especially of sludges from rivers and harbors, by the exclusive use of anionic polymer flocculants and the use of materials obtained according to the inventive met... | 06/30/2009 |
| 7497955 | Method of dewatering thin stillage processing streams A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2... | 03/03/2009 |
| 7445717 | Process for treating waste from the production of energetics A waste stream is treated in a pre-filter having media, preferably sand, connected below a zero-valent metal column reactor incorporating a metal with reducing potential, preferably elemental iron (Fe0); the combination preferably configured as a single u... | 11/04/2008 |
| 7442311 | Emulsion and effluent treatment processes An emulsion and affluent process which treats and breaks very tight emulsions and separates dissolved solids from associated fluids produced in industry, whereby solids and fluids are separated into clean interfacial phases thus providing an improved quality saleabl... | 10/28/2008 |
| 7429329 | Hybrid chemical/mechanical dewatering method for sewage treatment plants A hybrid chemical/mechanical dewatering sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids agglomeration and disposal methods to meet operating constraints and ... | 09/30/2008 |
| 7422692 | Raw influent treatment processes eliminating secondary biological treatment Presently no chemicals are added in the pulp/paper mills wastewater treatment. There is a loop hole with the Biological Oxygen Demand test utilized. Regulators depend on the Biological Oxygen Demand test. All mills are discharging raw untreated wastes high in Chemic... | 09/09/2008 |
| 7404898 | Method and installation for the production of lime water from deionised water A method of producing lime water comprising deionising dilution water by membrane filtration, distillation or an ion exchange resin and adding silicate ions to the deionised water. Thereafter, the deionised water treated with the silicate ions is mixed with milk of ... | 07/29/2008 |
| 7374689 | System and method of gas energy management for particle flotation and separation A system for separating particles from a contaminated liquid stream includes an apparatus for mixing the liquid with one or more separation enhancement additives and gases. A pressure reducing device having a flow restrictor element within an enlarged tube receives ... | 05/20/2008 |
| 7341668 | Filter aid and method of using same for reclaiming water-based fluids used in metal working processes A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p... | 03/11/2008 |
| 7338604 | Process for recycling paint flush solution A process for removing solids from a water-based flush solution, The process includes: providing dirty flush solution; directing the dirty flush solution to a treatment vessel; adding one or more chemicals to the treatment vessel to form a treated flush solution; se... | 03/04/2008 |
| 7338605 | Filter aid and method of using same for reclaiming water-based fluids used in metal working processes A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p... | 03/04/2008 |
| 7329356 | Flocculating agent for clarifying the water of man-made static water bodies A method is described for clarifying man-made static water bodies in which polyaluminum silicate sulfate is added to the water of the water body. Superior flocculation is achieved through the use of polyaluminum silicate sulfate which results in cleaner and more aes... | 02/12/2008 |
| 7326352 | Water treatment system A water treatment system for reducing the level of bacteria in a flow of water by creating an environment favorable for aerobic bacteria and unfavorable for anaerobic bacteria is disclosed. The system may include a method including intaking a flow of water, lowering... | 02/05/2008 |
| 7326304 | Control of the pH in washwater recovery system for a glass forming line A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment is provided. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution conta... | 02/05/2008 |
| 7323108 | Combined biological and ballasted flocculation process for treating wastewater A wastewater treatment process is provided that entails both a biological or activated sludge process and a ballasted flocculation process. A first stream of wastewater is directed to a biological system for biologically treating the wastewater. The biological treat... | 01/29/2008 |
| 7314546 | Disinfectant system and method for the chemical treatment of wastewater A system for the chemical treatment of wastewater may be discharged in a night spray system, an on demand system or a dosing system. Tank 12 receives wastewater, and a discharge pump 16 pumps wastewater from the tank in the night spray system. A sensor... | 01/01/2008 |
| 7311841 | Method for treating water by ballasted flocculation and decantation The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated wa... | 12/25/2007 |
| 7303685 | Polymer control system A feedback control for a polymer dispensing system, which otherwise continuously adjusts the polymer feedrate so as to keep the measured streaming current of filtrate from a sludge dewatering process at one predetermined setpoint. The feedback control includes a vid... | 12/04/2007 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300578 | Apparatus for recycling of oil-based drilling fluid contaminated with water and water contaminated with oil based drilling fluid A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank... | 11/27/2007 |
| 7282101 | Method for dissolving a solid material in a liquid A method for dissolving a measured quantity of a solute in a solvent. First, a tracer is combined with a solute in known proportions to form a mixture. The tracer is capable of increasing the turbidity of a solvent in proportion to the concentration of the solute di... | 10/16/2007 |
| 7279103 | Process for the purification of acidic metal-bearing waste waters to permissible discharge levels with recovery of marketable metal products Acidic metal-bearing wastewaters are treated to produce a finished water of sufficient purity to meet discharge standards while recovering metals removed in forms which are commercially valuable. The metals are selectively precipitated, either in a batch or in a con... | 10/09/2007 |
| 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 |