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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7441941 | Shaker with reciprocating agitator A handheld shaker with a reciprocating agitator, comprising a mixing vessel that operatively contains a guide rod that runs from one end of the vessel to an opposite end of the vessel. The mixing vessel is operatively connected to both such ends. The shaker also use... | 10/28/2008 |
| 7434980 | Swinging agitator for a gypsum calcining apparatus and the like An agitation mechanism for a gypsum processing apparatus which includes a housing having a bottom wall and at least one side wall. The housing can be constructed and arranged to receive and process gypsum-based products. An agitator frame having a similarly shaped c... | 10/14/2008 |
| 7399112 | Liquid mixing system for closed vessels A mixing apparatus (21) for use with a vessel (22) having a contiguous sidewall substantially centered about and defining a longitudinal axis (A), the mixing apparatus having a base plate (25) removably mountable atop the vessel, a table frame (... | 07/15/2008 |
| 7380976 | Device and method with cooling jackets A device comprising a flow channel having an inlet for introducing a flow of a first material, an outlet for exiting a flow of a second material; a plunger disposed and slidably movable coaxially within the flow channel; a first cooling device disposed adjacent to a... | 06/03/2008 |
| 7364351 | Fluid mixing apparatus A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a blade body is formed along a central head axis. The blade body has a first end, a second end spaced from the first end along the head axis, and a passageway exte... | 04/29/2008 |
| 7350961 | Agitation mixer, pasteurizer, and cleaning device Dissolution of a raw material, fusion of a raw material, or treatment for enhancing the fluidity of a raw material is completed in a short time by an agitation mixer 10 comprising a casing 20 in which a flow channel allowing the passage of fluid is mou... | 04/01/2008 |
| 7331702 | Agitation mixer An agitation mixer 10 comprises a casing 12 through which a fluid passes, an agitator body 15 installed inside the casing 12 and connected to rotation means 92, a liquid inlet 22 for feeding a liquid into the casing 12, | 02/19/2008 |
| 7318484 | Self servicing fire extinguisher with external operated internal mixing with wide mouth and external pressurized canister Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can service and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third par... | 01/15/2008 |
| 7306361 | Bone cement mixing and delivery system with multiple advancement mechanisms and method of use A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber ... | 12/11/2007 |
| 7293909 | Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber An apparatus for agitation mixing comprises a casing including a flow channel through which fluid passes, an agitation body consisting of a shaft installed in the casing and connected to a motor and an agitation blade mounted on the perimeter of the shaft, a powder ... | 11/13/2007 |
| 7291194 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 11/06/2007 |
| 7288128 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 10/30/2007 |
| 7278781 | Fluid mixing apparatus A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a tubular blade which: defines a central head axis; has a first end and a second end spaced from the first end along the head axis; and tapers from the first end t... | 10/09/2007 |
| 7225920 | Mixing device The invention relates to a mixing device for mixing a pulverulent product, which is contained in a film sachet that is soluble in liquid, with said liquid and optionally at least one additional component. The aim of the invention is to accelerate the mixing of pulve... | 06/05/2007 |
| 7226204 | Butter maker A butter maker having a housing for mounting on a countertop in a kitchen or the like. The butter maker includes a cream holding container in which cream is placed and also includes drive assembly having a shaft both rotatable along its vertical axis and reciprocal ... | 06/05/2007 |
| 7216761 | Two-component mixing and dispensing device A device for preparing and ejecting polymeric cement made from at least two pre-packaged components comprises a tubular vessel including a first axial end wall having a closed outlet, and a second axial end wall having an aperture. A first starting component of the ... | 05/15/2007 |
| 7178979 | Water agitation system for water retention structure A water agitation system configured to be positioned within a water retention structure configured to receive and retain water, includes a housing having a drive shaft extending downwardly therefrom; at least one upright member connected to a cross beam that is conf... | 02/20/2007 |
| 7168847 | Device for mixing and/or injecting cements The embodiments of the present invention relate to a device for storing and/or mixing and/or injecting cements, especially bone cements. The device includes a tube having a longitudinal axis, a front end with an outlet opening, a rear end; and an internal cylindrica... | 01/30/2007 |
| 7147361 | Methods for injecting dry bulk amendments for water and soil treatment The present invention includes methods for introducing a dry material into a fluid stream in a way that ensures a predictable, highly accurate and consistent application of the material. The invention applies variable amounts of dry material regardless of whether th... | 12/12/2006 |
| 7128163 | Self servicing fire extinguisher with external operated internal mixing with wide mouth and external COchamber Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simpler untrained and automatic self servicing of a fire extinguisher. The improvements include an anti-bridging mechanism that can be articulated from the exterior o... | 10/31/2006 |
| 7121713 | Swinging agitator for a gypsum calcining apparatus and the like An agitation mechanism for a gypsum processing apparatus which includes a housing having a bottom wall, and at least one side wall. The housing can be constructed and arranged to receive and process gypsum-based products. An agitator frame having a similarly shaped ... | 10/17/2006 |
| 7090391 | Apparatus and method for mixing by agitation in a multichambered mixing apparatus including a pre-agitation mixing chamber An apparatus for agitation mixing comprises a casing 12 including a flow channel through which fluid passes, an agitation body consisting of a shaft 14 installed in the casing 12 and connected to a motor 18 and an agitation blade 16 | 08/15/2006 |
| 7083324 | Integrated fixed film activated sludge system using gravity assisted mixing A beam is pivotally supported at a fixed pivot support, the beam movable in cyclic tilting motion such that ends of the beam move vertically in mutually opposing directions. The ends of the beam are pivotally engaged with vertical arms extending downwardly. The arms... | 08/01/2006 |
| 7073936 | Method and device for feeding components for bone cement into a mixing vessel A method and an arrangement for successively feeding batches into a mixing vessel under partial vacuum for the preparation of bone cement. The arrangement includes an inner container communicating with the atmosphere and with the mixing vessel, which container is so... | 07/11/2006 |
| 7029166 | Mixing apparatus A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a blade which: defines a central head axis; has a first end and a second end. The second end defines an inside blade diameter “ID” and the first end defines an... | 04/18/2006 |
| 7018089 | Apparatus and methods for mixing two components The apparatus for production of mixtures from two components has a container for each and devices to combine the components in the mixing space and for extrusion of the mixture. The powdered component (4) is situated in the lower part of the inner space (2... | 03/28/2006 |
| 6981794 | Methods for mixing solutions A method for mixing a solution includes positioning a collapsible container within a chamber of a substantially rigid tank. The collapsible container bounds a compartment. A mixer is disposed within the compartment of the container. Two or more components are fed in... | 01/03/2006 |
| 6974247 | Device for mixing and/or injecting cements The present invention relates to a device for storing and/or mixing and/or injecting cements, especially bone cements. The device includes a tube having a longitudinal axis, a front end with an outlet opening, a rear end; and an internal cylindrical cavity having a ... | 12/13/2005 |
| 6945689 | System for holding paint container A system for mixing paint and for holding a container of paint having a cover engaging a body is disclosed. The system comprises a rotary mixer comprising a holder configured for receiving the container. The system also comprises a clamp comprising an arm configured... | 09/20/2005 |
| 6926437 | Gravity powered mixer system A beam is supported at a balance point by a pivot attached at a fixed pivot support. The beam is movable in cyclic tilting motion about the pivot such that ends of the beam move vertically in mutually opposing directions. The ends of the beam pivotally engage vertic... | 08/09/2005 |
| 6923567 | Mixing tank assembly A mixing tank assembly includes a side wall having an interior surface at least partially bounding a chamber. A floor is disposed within or at the base of the chamber. The floor can be either fixed to the side wall or movably disposed within the chamber thereof. A c... | 08/02/2005 |
| 6916113 | Devices and methods for fluid mixing A device for mixing fluids is provided. The device is comprised of a substrate containing a first mixing feature that terminates at a first opening located on a surface of the substrate and a cover plate containing a second mixing feature that terminates at a second... | 07/12/2005 |
| 6908223 | Systems for mixing liquid solutions and methods of manufacture A mixing system includes a flexible mixing bag having an interior surface bounding a compartment, the compartment being adapted to hold a liquid solution. A mixer is disposed within the compartment of the mixing bag. A shaft has a first end and an opposing second en... | 06/21/2005 |
| 6871996 | Device at mixing devices for mixing pulverulent and liquid substances with each other for the manufacture of medical products The present invention relates to a device at mixing devices for mixing pulverulent and liquid substances with each other for the manufacture of medical products, wherein a displaceable piston means (17) has at least one groove (22) extending around sai... | 03/29/2005 |
| 6843593 | Staining apparatus for stacked electrophoresis slab gels Slab gels held on trays are agitated in a staining or fixing solution by an apparatus that includes a tray carrier that holds a stack of slab gel trays, a tank that receives the tray carrier with sufficient excess room to allow the carrier to move back and forth wit... | 01/18/2005 |
| 6830369 | Mixing apparatus A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a tubular blade which: defines a central head axis; has a first end and a second end spaced from the first end along the head axis; and tapers from the first end t... | 12/14/2004 |
| 6749817 | Controlled reactant injection with permeable plates An arrangement for a fluid distributor-contactor-type reactor uses perforated plates to circulate two reactants in alternate channels defined by spaces between parallel stacked plates to perform controlled distribution and mixing simultaneously with optional indirec... | 06/15/2004 |
| 6736537 | Bone cement mixing and delivery device for injection and method thereof A bone cement mixing and delivery assembly is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end and a proximal end and defining a mixing chamber ... | 05/18/2004 |
| 6641297 | Hazardous waste transportation and disposal An apparatus for holding hazardous waste made up of solids and liquids in a flowable form includes a tank made of material selected to be impervious to and non-corrodible by the hazardous waste and having a non-critical portion, an agitator in the tank ha... | 11/04/2003 |
| 6632012 | Mixing manifold for multiple inlet chemistry fluids Exemplary methods, systems and apparatus are provided for accomplishing mixing of chemistries, such as those used in polishing materials used in semiconductor manufacturing. A manifold is provided that combines chemistries with a mixing element, for examp... | 10/14/2003 |
