William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7205000 | Sodium bicarbonate/sodium chloride micronized slurry A slurry comprising (a) sodium bicarbonate, (b) sodium chloride, and (c) water, in a weight ratio of (a)/(b) of about 2.5:1 to about 3.5:1, wherein upon further dilution of said slurry with additional water, the amount of sodium bicarbonate and sodium chloride which... | 04/17/2007 |
| 7147770 | Activity enhanced dispensers A liquid treatment method and system with the liquid treatment system having a container for holding a liquid treatment material therein with the liquid treatment device effectively positionable in various transitional regions in the liquid system to provide for an ... | 12/12/2006 |
| 7108601 | Grain threshing device A grain threshing device (10) comprising a receptacle (12) or receiving a portion of crop head. The receptacle (12) has a plurality of longitudinal ribs (30) on inner surfaces. One or more flexible arm members (28) are arranged on ... | 09/19/2006 |
| 7056422 | Batch thermolytic distillation of carbonaceous material A distillation system is provided for batch thermolytic distillation of lump carbonaceous material, such as lump wood and shredded rubber tires. The system preferably includes multiple distillation units mounted side-by-side. Each unit includes a reactor bath for ho... | 06/06/2006 |
| 7048898 | Apparatus for preparing a fluid for a medical procedure The invention provides an apparatus for preparing a fluid for a medical procedure by mixing of at least one medicament in the form of powder with water, the medicament is held in a vessel which defines a bottom, a side wall, and a top opening which is closed by an m... | 05/23/2006 |
| 7036175 | Washing machine with pay activated bulk detergent dispenser An approved washing machine and method of washing laundry is provided wherein a user can select an amount of an additive, such as detergent, to be automatically supplied from a bulk additive reservoir to the washing machine tub during the appropriate time in the was... | 05/02/2006 |
| 6922429 | Treatment of chloralkali feeds containing hydrogen peroxide and base A method and apparatus for removing BHP contaminants (alkali hydroxide and H2O2) from a recycled aqueous alkali chloride solution stream before the stream is fed to a chloralkali cell so that the contaminants do not impair the operation of a ch... | 07/26/2005 |
| 6866832 | Method and apparatus for sanitizing perishable goods in enclosed conduits The invention is directed to a method and apparatus for sanitizing perishable goods by mixing the goods with sanitizing fluid for a suitable period of time followed by separating the fluid and substantially neutralizing any residual sanitizing agent left in the good... | 03/15/2005 |
| 6827911 | Photoreactor with self-contained photocatalyst recapture A system for the continuous use and recapture of a catalyst in liquid, comprising: a generally vertical reactor having a reaction zone with generally downwardly flowing liquid, and a catalyst recovery chamber adjacent the reaction zone containing a catalyst consisti... | 12/07/2004 |
| 6821488 | Sample holding chuck for use in reactor and reactor using same A chuck assembly for holding a sample includes a shaft; a generally circular chuck member, the shaft extending from a first surface of the chuck member; and a sample holder associated with a second surface of the chuck member. The second surface is opposite the firs... | 11/23/2004 |
| 6802970 | Fluid treating device A fluid-treating device containing a distributing device having a revolving disc in a stationary housing, and a motor for rotating the disc. Feed and discharge pipes are connected to an end wall of the housing and open onto the revolving disc. Stationary vessels are... | 10/12/2004 |
| 6576041 | Method and apparatus for chemical processing A system and method are disclosed after chemical processing involving agitation and/or mixing of components. In one embodiment, the chemical processing involves pressure oxidation and in another embodiment involves pressure leaching. Agitation during chem... | 06/10/2003 |
| 6495044 | Method and device for removing a component from solid particle material by extraction In order to remove a component from solid particle material by extraction, use is made of a column with one or more tubes which extend between the ends of the column, at least one filter being fitted in the wall of each tube. The particle material is fed ... | 12/17/2002 |
| 6485769 | Food disinfection using ozone Methods and apparatus are provided for decreasing the bacteria count of a food commodity without affecting its overall organoleptic quality (taste, odor, and color). This is accomplished using a treatment fluid comprising ozone, which is injected into a t... | 11/26/2002 |
| 6395063 | Method and system for pressure oxidation of sulfide gold ores involving enhanced oxygen-sulfide contact A system and method for recovering gold using pressure oxidation is disclosed. In one embodiment, a feed slurry is introduced into multiple compartments or stages of a multi-stage autoclave. In another embodiment, an agitator pump is disposed in each comp... | 05/28/2002 |
| 6387251 | Apparatus for dosing powdered or granulated additives in water works, namely swimming pools An apparatus for dosing a granulated or powdered additive in the water of a water works includes a dosing assembly (10) with a water collecting tank (9) hydraulically connected to inflows (20, 21) of unmixed water and to an outflow of additive-mixed water... | 05/14/2002 |
| 6270736 | Identity preserved oilseed mill A method for processing two or more oilseeds includes the steps of providing a first oilseed type and a second oilseed type, processing the first oilseed type to extract a first oilseed product from the first oilseed type, creating a gap in the flow of th... | 08/07/2001 |
| 6224761 | Multistage liquid-solid fractional extraction apparatus The object is to provide a multistage liquid-solid fractional extraction apparatus in which a separation procedure of a large amount of mixture can be carried out exactly and effectively in a simple procedure by use of a partition difference in liquid chr... | 05/01/2001 |
| 6221244 | Swimming pool chlorinator with adjustable slits A swimming pool chlorinator that utilizes a cylindrical housing that has an internal chamber. Within the internal chamber is concentrically mounted in a close fitting manner a valve member. The sidewall of the housing has a series of elongated slits and a... | 04/24/2001 |
| 6193805 | Diffuser A diffusion apparatus for extraction of sugar from sugar cane has a vertically-diposed annular extracting compartment including a revolving screen deck contained within a fixed inner shell and a fixed outer shell. The revolving screen is supported on roll... | 02/27/2001 |
| 5993752 | Device for dissolving a coagulant A device 10 for dissolving a coagulant having a rotor chamber 13 supporting rotors 21 around the horizontal axis, wherein a mixture of the coagulant and water is fed to the rotor chamber 13, the liquid level of the mixture is kept at a medium level of the... | 11/30/1999 |
| 5957041 | Continuous boiler for organic materials, e.g. fish A continuous boiling apparatus (1) for organic materials, e.g., fish or offal from abattoirs, comprises at least one annular boiling zone (15) with an inlet opening (13) for the raw material and a discharge opening (4) for the heat-treated raw material. T... | 09/28/1999 |
| 5799570 | Apparatus for the extraction of oil from fried food products Described is an apparatus for the extraction of oil from fried food products, especially thin food products, such as snack products, in which the food product is not damaged and which enables an especially homogeneous distribution of the seasonings.... | 09/01/1998 |
| 5772968 | Apparatus and method for hydrolyzing keratinaceous material A hydrolyzer system, apparatus, and method for effecting the continuous conversion of offal, feathers, hair, and other keratinaceous material into usable protein products for further commercial usage. The hydrolyzer system includes a feed screw conveyor, ... | 06/30/1998 |
| 5711856 | Asphalt extracting apparatus There is disclosed an asphalt extracting apparatus of the Soxhlet type in which a solvent evaporated from a flask is condensed by a cooling device and then dropped into the inside of a filter device such that asphalt in an asphalt mixture inside the filte... | 01/27/1998 |
| 5707592 | Method and apparatus for treatment of waste materials including nuclear contaminated materials A method and apparatus for the treatment of waste materials including nuclear contaminated materials is disclosed. The method of the invention includes the steps of: grinding the base material until the maximum grain size is 50 millimeters; drying the gro... | 01/13/1998 |
| 5705133 | Stationary screen extractor An improved rotating basket extractor is provided having improved discharge means comprising a hopper section having a solid material entry and solid material exit end. The cross sectional area of the solid material entry end is smaller than the exit end ... | 01/06/1998 |
| 5676826 | Fluid-solid contacting apparatus An apparatus for continuous fluid-solid contacting includes a plurality of chambers on a rotating carousel, each chamber having a supply conduit and a discharge conduit, and a single valve for controlling a supply and discharge of fluid to the chambers. T... | 10/14/1997 |
| 5643548 | Drying and separating process and plant A process and plant for drying and then separating moist salts, such as magnesium sulfite, in which the moist magnesium sulfite is heated to a temperature greater than or equal to about 200° C. in a dryer and the passed through a solid materials lock int... | 07/01/1997 |
| 5620671 | Liquid dispensing apparatus An apparatus mountable atop a container having a cavity containing a solid material, an orifice positioned atop the container and a liquid inlet. The apparatus has a collar having an axial bore, a pivotable conduit attached to the collar and a diffuser at... | 04/15/1997 |
| 5591416 | Stationary screen extractor An improved rotating basket extractor is provided having improved discharge means comprising a hopper section having a solid material entry and solid material exit end. The cross sectional area of the solid material entry end is smaller than the exit end ... | 01/07/1997 |
| 5569331 | Method and apparatus for recycling oil-soaked boom and pads A method and apparatus are provided for removing oil from absorbent materials of the type used in components for absorbing oil and containing oil spills. The components are first passed through a press to squeeze some of the oil from the components. The c... | 10/29/1996 |
| 5483989 | Apparatus for dissolving detergent Disclosed is a detergent dissolving apparatus which can supply a complete dissolved detergent therewith without any remaining detergent therein. The apparatus has a detergent dissolving container, a detergent introducing container and a rotation device. T... | 01/16/1996 |
| 5470544 | System for steam-reforming of liquid or slurry feed material An apparatus for treating liquid or slurry having a heat treating zone through which is provided counter current flow of heated gas and independently moveable bodies through the heat treating zone in contact with a feed stream. A steam reforming detoxific... | 11/28/1995 |
| 5456893 | Apparatus for extracting with liquids soluble substances from subdivided solids Small particles and fines included along with larger subdivided solids are treated with liquid to extract soluble solids therein in an apparatus and process using milli-screens with milli-sized openings of less than about 0.095 inches across. The milli-sc... | 10/10/1995 |
| 5403556 | Apparatus for injecting solid insoluble additives into polymerization streams Process and apparatus are disclosed for improved additive systems for polymerization processes, which improved systems comprise a slurry additive system having a high shear mixer for mixing a carrier fluid and the solid additives and maintaining them in a... | 04/04/1995 |
| 5295665 | Apparatus for beneficiating ores A method and apparatus for treating mineral-bearing ores and, more particularly, for treating particulate ores containing precious metals, base metals and the like for separating and recovering said values by classifying the particulate ore on a bed of pa... | 03/22/1994 |
| 5294408 | Compact lime slaker A compact lime slaker has an inner vessel forming an initial slaking chamber disposed in an outer vessel forming a final slaking chamber, with agitators provided In both chambers. Slaked lime from the final slaking chamber is pumped to a collection trough... | 03/15/1994 |
| 5102628 | Riser simulator An apparatus for testing performance of a catalyst in a gaseous phase catalytic reaction for a given reactant comprises a reactor receiving a predetermined quantity of fluid reactant discharging the reaction mixture, including reaction products, from the ... | 04/07/1992 |
| 5082574 | Apparatus for treatment of material with liquid with stirrer driven vortex flow An apparatus for treating material with liquid has defined therein a cylindrical chamber, suspended above the bottom of which is a receptacle for holding the material to be tested, the bottom of which receptacle is permeable to the treatment liquid. Above... | 01/21/1992 |