Abstract: A method of using a paint cup assembly with a paint sprayer includes filling a paint cup assembly with paint, closing the paint cup assembly, inverting the paint cup assembly, and engaging the paint cup assembly with the paint sprayer. The paint cup assembly includes a spring loaded valve to prevent paint from leaking from the paint cup assembly when the paint cup assembly is inverted.
Abstract: A mixing system has a single-use container (1) with flexible walls and a mixing device. The mixing device has at least one encapsulated drive (5) and a mixer shaft (3). The drive (5) can be disposed of after use together with the mixer shaft (3) and the single-use container (1). The mixing system can be used in biotechnology and the pharmaceutical industry for mixing liquids, dissolving solids or cultivating cells and microorganisms.
May 7, 2009
March 10, 2011
SARTORIUS STEDIM BIOTECH GMBH
Oscar-Werner Reif, Gerhard Greller, Juergen Van Den Boogaard, Karl-Heinz Kompart, Marco Lohrengel
Abstract: The invention relates to a mixing appliance pertaining to a chemical or biochemical analyser and comprising a pipette having a head, a body and a free end. The head of the pipette is fixed to a head supporting block. The inventive mixing appliance comprises driving elements for triggering the oscillation of the free end of the pipette. Said driving elements consist of an actuating unit that is fixed to a frame, both elements being associated with a guiding block provided with an eccentric block that is mounted in such a way as to rotate freely about an axis and is in contact with the body of the pipette. The head supporting block is mounted in such a way as to rotate freely in the frame about an axis perpendicular to the plane in which the pipette oscillates.
Abstract: An apparatus for the addition of a compound or compound mixture to another which includes a primary vessel adapted having at least one receptacle adapted to contain at least one primary substance. At least one secondary vessel is provided. Each secondary vessel is adapted to contain at least one secondary substance. Each secondary vessel is movably mounted within the primary vessel for movement between a stored position and at least one mixing position. In the stored position, a peripheral edge of each secondary vessel is above a level of the at least one primary substance. In each mixing position the peripheral edge of the secondary vessel is moved below the level of the at least one receptacle containing the at least one primary substance, thereby permitting the at least one primary substance to overflow the peripheral edge into the secondary vessel with the at least one secondary substance.
Abstract: An apparatus for mixing powdered or premixed drywall joint compound and water to form a joint compound mixture or slurry includes a portable container rig with a container, pumping components, and mixing components on a dolly. A mixing element rests within the container upon the container bottom, while a mixing element driver assembly that is adapted to rest upon the upper lip portion of the container engages the mixing element and rotates it for mixing purposes while at the same time raising it slightly. The pumping components may include various commercially available valves and pump outlets that facilitate the filling of various tape application tools, and one preferred embodiment includes remote control components featuring automatic pump turnoff. One embodiment includes a multifunction coupling assembly having an upper coupling component and two different lower components.
Abstract: An improved mixing apparatus for mixing a liquid and a particulate solid material within a container such that the pigments and/or other solid particulate materials, which are initially precipitated out and usually accumulated at the bottom of the container, are rapidly and thoroughly mixed and dispersed throughout the liquid in a uniform manner such that substantially all of the particulate material is dispersed within the liquid. In one embodiment, a flow pattern in the form of an inverted vortex rising from the bottom center of the container is created by a rotating frusto-conically shaped impeller to pull the particulate material away from the bottom of the container. In another embodiment, the apparatus includes a cover mechanism, which is made to function integrally with the mixing apparatus, and which covers the container during the mixing operation to prevent the escape of fumes or spray.
Abstract: A rotary agitator for use in sealed containers such as drums having a single bung opening. The agitator is provided with a housing which screws into the bung opening and appending from the housing is a rotating hollow shaft having a helical agitator flight or other agitator member which may be inserted through the bung opening. Material from inside the drum or container may be withdrawn upwardly through the hollow shaft and then outwardly through a port in the housing. A check valve is provided in the housing which communicates with the interior of the container in which to allow pressure equalization in the container which may be connected to a source of inert gas or the like to prevent degradation or other harm to the material in the drum which might be caused by ambient atmosphere.
Abstract: A cement mixer is provided for use with a pick-up truck, generally as a retrofit to an existing truck. The cement mixer can sit on the truck bed, having pivot mounts that engage the tailgate brackets, to facilitate dumping of a mix from the mixer. The system utilizes a hydraulic circuit connected in parallel with the truck power steering circuit. A shut-off valve redirects the hydraulic fluid to the auxiliary circuit, in driving relation with a hydraulic motor that powers the mixer paddles of the mixer.
Abstract: A gun for dynamic mixing and discharging of a chemical mixture, such as a sealant, includes a mixing chamber with a motor-driven spindle mounted for rotation within the mixing chamber and a discharge outlet from the mixing chamber. A disposable mixing chamber liner is insertable within the mixing chamber and sealingly engageable with the gun. A disposable mixing paddle is releasably engageable with the spindle for rotation within the mixing chamber.
Abstract: A mixer drive unit includes a motor provided with a housing, and a sleeve-like shroud projects outwardly to be positionable in abutting engagement with a top wall of a tank in surrounding relationship to the projecting end of a mixing shaft. The drive unit has a quick-connect drive coupling disposed within the shroud. The coupling includes a drive plate which has a pair of driving flanges projecting downwardly in cantilevered relationship, which driving flanges are spaced radially outwardly from and on substantially diametrically opposite sides of a driving axis. The driving flanges are positionable substantially on diametrically opposite sides of the mixing shaft when the latter is inserted into a pilot opening in the drive plate. The driving flanges define thereon, in the rotational direction, leading drive faces which abut projecting ends of a drive pin secured to the end of the mixing shaft.
Abstract: A mixer for mixing fluid materials such as an adhesive resin and a catalyst as the materials flow from separate supply sources to a dispensing nozzle includes a disc like rotor having a plurality of balls of uniform diameter fixedly mounted in the rotor to project symmetrically from opposite sides of the rotor. The rotor is driven in rotation within a cylindrical chamber having walls providing small clearances for the rotor, the chamber having a fluid inlet and a fluid outlet in the opposed chamber end walls coaxial with the rotor. The balls are arranged in a pattern which thoroughly mixes the fluid while imposing a minimum restriction to the flow of fluid through the mixer.
Abstract: A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed and to drive rotor shafted to a spur gear which drives an agitator for keeping the concentrate in the tank stirred-up, with a manual input for initially stirring-up or agitating the concentrate. An indicator is provided on the manual drive to show that the agitator (and hence the rotor) is operating. An aspirator or jet pump receives the liquid or water downstream of the rotor and the input aspirator or vacuum line from the concentrate or tank passes through a ball check valve which has an indicator coupled thereto for indicating the flow of concentrate from the tank to the jet pump to be mixed with the water. A valve with predetermined controls the degree or ratio of concentrate.
Abstract: An improved apparatus for pressuring a hard frozen comestible, similar to hardened ice cream, while simultaneously subjecting it to mechanical action to reduce the crystal and cell structure of the material to transform it into a soft, smooth and creamy texture only slightly less cold than its starting temperature. The apparatus includes a hopper for receiving the hard frozen comestible to be treated, an auger positioned above the hopper and automatically actuated by movement of the hopper toward the auger to produce conditioning of the comestible by the auger as the hopper and auger move toward one another into an adjacent relationship. The auger is powered by a drive assembly that includes an electrically driven motor and a fluid drive unit to provide a constant drive force on the auger without undue stress on the drive motor.
Abstract: A paint cup adapted to be carried by a spray gun for use with coating materials requiring stirring to prevent separation. A reservoir is closed by a cover member which is mounted on the spray gun and, which in turn, mounts an agitator which projects into the reservoir. The agitator is driven by compressed air admitted to an impeller housing on the cover member. The reservoir is sealed except for means to introduce air to replace the coating material used in operation, and in this invention the air is introduced primarily through a separate check valve. Discharge ports in the impeller housing are made sufficiently large to assure at least atmospheric pressure in the reservoir. A separate check valve is provided to maintain the pressure within the reservoir at atmospheric pressure while preventing material leakage from the reservoir. The design of the cover assembly and its controls ensures easy flushing of the components with or without disassembly.
Abstract: A slurry mixing and pumping system adapted to automatically control both slurry viscosity and product output volume. Water and raw gypsum delivered to a mixing vat are thoroughly blended by a hydraulically powered agitator blade within the vat. Hydraulic pressure variations experienced by the agitator motor are translated into pneumatic viscosity control signals by a process controller. An air actuated water valve driven by the controller varies water input into the vat to effectuate viscosity correction. Means responsive to vat head level controls output volume.
Abstract: Cup apparatus for use with a spray gun for paints in which the cup has a cover incorporating an impeller for an agitator for stirring the contents of the cup. The impeller is driven by the air supply which is used to generate the spray and the exhaust from the impeller is partially discharged through the cup in a manner to avoid collection of paint in the moving parts.
Abstract: The pneumatically operated apparatus includes a transparent, calibrated paint container to facilitate measuring of the required proportions of color and solvents. A vertically displaceable and rotatable member extends through and seals an opening in the bottom of the container. The member has a hollow body forming a paint passage. An agitator is sealingly mounted on the end thereof extending through the opening and into the container, the other end being opened. An aperture is provided in the wall of the member spaced a short distance from the agitator. A friction surface is provided for connecting a pneumatically operated drive to the member to rotate same.