Abstract: An apparatus and associated method for mixing at least a first fluid phase having a first density and a second fluid phase having a second density, the apparatus comprising; at least one container (1), the container comprising at least one inlet (2) for a multiphase flow and at least one outlet (3) at a lower axial end of the container (1), a hollow flow regulating device (4) axially arranged within the container (1), wherein a first end of the flow regulating device (4) is arranged in a distance from the outlet (3) providing a drainage gap (5) between the flow regulating device (4) and the outlet (3), which drainage gap (5) has a drainage area, the flow regulating device (4) comprising a number of perforations (6) along the axial length thereof and a discharge means (7) in a first end, which discharge means (7) opens towards the outlet (3), the flow regulating device (4) being connected to a position adjustment device (8), the position adjustment device (8) being arranged to move the flow regulating device (

Abstract: An ultra-deep reservoir stratified water sample and sediment core integrated artificial intelligence sampling device, comprising a sampling device main chamber, an attitude balance sensor, a propeller, a balance base, and a sampler body, wherein the attitude balance sensor and the sampler body are disposed inside the sampling device main chamber; the propeller is disposed outside the sampling device main chamber; and the balance base is located at a bottom end of the sampling device main chamber. The sampling device of the present invention is an intelligent sampling device integrating high-definition underwater topography observation, undisturbed sediment core collection, vertical stratified accurate sampling of water bodies, and real-time in-situ monitoring of key physical and chemical parameters, and can be flexibly applied to deep and shallow water environments under complicated conditions.

Abstract: A washing machine includes a tub; a drum rotatably disposed inside the tub; and an ultrasound generator configured to emit ultrasonic waves to washing water loaded in the drum, and to generate bubbles. The ultrasound generator applies ultrasonic energy to the washing water to cause chaotic oscillation of the bubbles.

Abstract: A mixing system and mixing method are provided. The mixing system includes a tank assembly, a container positioned within the tank assembly, a mixer disposed within a compartment of the container, a linear motor, and a shaft having a first end secured to the mixer and an opposing second end secured to the linear motor. The linear motor provides a variable stroke length for the shaft. The mixing method includes providing a tank assembly having a linear motor, positioning a mixing assembly including a mixing bag in the tank assembly, combining two or more components in a compartment of the mixing bag, attaching a mixing shaft extending from a mixer disposed within the mixing bag to the linear motor, and raising and lowering the mixing shaft to mix the two or more components. A stroke length of the mixing shaft during the raising and lowering is varied.

Abstract: The invention relates to an emulsification device for continuously producing emulsions, nano-emulsions, and/or dispersions having a liquid crystalline structure, comprising a) at least one mixing system, b) at least one drive for the stirring element, and c) at least one delivery unit for each component or each component mixture.

Abstract: A single-use round flexible mixing bag for use in bioprocessing in which a fluid is received and agitated using an internal fluid-agitating element comprising a radial flow impeller driven by an internal pneumatic vane motor is disclosed. The bag may include an integral sparger and sensor receiver. Related methods are also disclosed.

Abstract: A photobioreactor apparatus in which a reaction chamber contains a slurry of water, nutrients and photosynthetic organisms. The sidewall of the reaction chamber is constructed of translucent material, thereby permitting light to be conveyed into the slurry to promote photosynthesis. The interior of the reaction chamber is in fluid communication with a gas dispenser. A lift member is disposed in the reaction chamber and gas is introduced in the slurry beneath the lift member, thereby providing buoyancy to lift the lift member, thereby providing agitation and movement of the slurry within the photobioreactor and enhancing growth of photosynthetic organisms.

Abstract: A system for pumping or mixing a fluid using a rotating pumping or mixing element and various other components for use in a pumping or mixing system are disclosed.

Abstract: The invention provides a mixing system comprising a magnetically coupled drive system and a foil for cultivating algae, or cyanobacteria, in an open or enclosed vessel. The invention provides effective mixing, low energy usage, low capital expenditure, and ease of drive system component maintenance while maintaining the integrity of a sealed mixing vessel.

Abstract: A container for bone cement includes a first member defining a chamber, which contains a first ingredient. The chamber also includes a second member movably coupled to the first member. The second member includes a mixing device that is movably disposed within the first chamber, and the second member defines a second chamber containing a second ingredient. The container additional includes an opening device that selectively opens the second chamber and allows the second ingredient to enter from the second chamber into the first chamber. The mixing device is movable within the first chamber to promote mixing of the first ingredient and the second ingredient to prepare the bone cement. A corresponding method of preparing bone cement is also disclosed.

Abstract: The present invention provides a method and apparatus for the creation and dispensing of a custom formulation within a package at a retail point of sale. In one aspect, the invention includes an automated dispensing apparatus including at least a two-axis robot arm. In another aspect, the invention includes an automated mixer adapted to mix the dispensed custom formulation within the package.

Abstract: A receptacle (1) for biopharmaceutical use includes a flexible container (2) having a wall (4), an internal space (5) for receiving a liquid or pasty biopharmaceutical content, mixing elements (20) adjacent to a given portion (21) of the wall (4), elements (22) for rigid and leaktight connection between the mixing elements (20) and the given portion (21), the mixing elements (20) including a sleeve (24), a suction-delivery opening (26), a suction-delivery part (28), a suction-delivery cavity (29), drive elements (23) for driving in an alternating forward/backward axial sliding sequence, elements (32) for immobilizing the sleeve and the given portion (21), including during the axial sliding movement of the suction-delivery part (28).

Abstract: A reaction solution is mixed in a short period of time with excellent stirring efficiency. During the stirring of the reaction solution, a rotation motor drives a stirring rod and a vertical motor moves the stirring rod in a vertically reciprocating manner in the reaction solution.

Abstract: A container for bone cement includes a first member defining a chamber, which contains a first ingredient. The chamber also includes a second member movably coupled to the first member. The second member includes a mixing device that is movably disposed within the first chamber, and the second member defines a second chamber containing a second ingredient. The container additional includes an opening device that selectively opens the second chamber and allows the second ingredient to enter from the second chamber into the first chamber. The mixing device is movable within the first chamber to promote mixing of the first ingredient and the second ingredient to prepare the bone cement. A corresponding method of preparing bone cement is also disclosed.

Abstract: The invention provides a mixing system comprising a magnetically coupled drive system and a foil for cultivating algae, or cyanobacteria, in an open or enclosed vessel. The invention provides effective mixing, low energy usage, low capital expenditure, and ease of drive system component maintenance while maintaining the integrity of a sealed mixing vessel.

Abstract: A system and a method for making an injectable mixture using at least one first pulverulent component and a second liquid component with a first piston/cylinder arrangement with a cylinder with an axial extension and a piston, wherein the cylinder includes a measured amount of the pulverulent component, a separate reservoir including a corresponding measured amount of the liquid component, and a transfer device for sealed transfer of said amount of the liquid component to the cylinder for subsequent mixing and injection of the completed mixture. The first piston/cylinder arrangement is an injection syringe. A mixing element being manoeuvrable by a user is positioned inside the cylinder. At least one gas transferring channel means leading to the cylinder is arranged at the cylinder. Engagement means are arranged for connecting the first injection syringe to the separate reservoir during transfer of the liquid component.

Abstract: An up/down movable diaphragm is disposed to an upper surface portion of a stirring vessel so as to airtightly cover the upper surface portion, a drive shaft passing through the diaphragm is fixed and vertically disposed to the diaphragm, and a stirring blade coupled with and fixed to a lower end portion of the drive shaft so as to be orthogonal thereto is composed of a laterally long and oval sheet-shaped member having a major axis and a minor axis passing through a center thereof, and a stirring is performed by moving the stirring blade up and down. With this arrangement, there are provided a stirring blade and a stirring apparatus which do not apply a strong shearing force to a stirring liquid, do not have an anxiety of polluting the stirring liquid, and can sufficiently fluidize, mix, disperse, and homogenize the stirring liquid in a stirring blade and a stirring apparatus for performing a stirring in fields of medicine and food.

Abstract: The invention is a device for processing materials comprising a mixing chamber having a valve for removal of the material from the mixing chamber and a piston which fits within the mixing chamber in a manner such that the piston can be moved to remove substantially all material from the mixing chamber via the valve; at least one, preferably at least two, retractable mixing element(s) wherein each of such elements is movable in and out of the mixing chamber through a port wherein the element and port are configured such that during mixing and when the element is withdrawn from the mixing chamber substantially no material is removed from the mixing chamber via the port. The invention is also a method of using such a device and a system comprising use of such devices in an automated or partially automated array.

Abstract: A method using a mixer for disbursing an additive in a tube of compound. The mixer includes a rigid cylinder and a plunger assembly. The cylinder is configured for receiving an opened tube of compound, to which additive has been introduced. The plunger assembly includes a shaft, on which a cap is slidably and rotatably mounted. A mixer blade is mounted on a first end of the shaft and a second end of the shaft is provided with a handle. The cap is provided with a pair of cutouts designed for receiving a pair of studs mounted on the outside surface of the cylinder, such that the cap may be fitted on the cylinder and turned to engage the studs with the cutouts and connect the cap and the cylinder. The handle may be rotated and reciprocated to move the mixer blade through the contents of the tube for mixing.

Abstract: A method using a mixer for disbursing an additive in a tube of compound. The mixer includes a rigid cylinder and a plunger assembly. The cylinder is configured for receiving an opened tube of compound, to which additive has been introduced. The plunger assembly includes a shaft on which a cap is slidably and rotatably mounted. A mixer blade is mounted on a first end of the shaft and a second end of the shaft is provided with a handle. The cap is provided with a pair of cutouts designed for receiving a pair of studs mounted on the outside surface of the cylinder, such that the cap may be fitted on the cylinder and turned to engage the studs with the cutouts and connect the cap and the cylinder. The handle may be rotated and reciprocated to move the mixer blade through the contents of the tube for mixing.

Abstract: A reciprocating drive assembly is disclosed for use in a fluid mixer to impart reciprocating movement along a longitudinal axis to a shaft carrying a mixing head. The drive assembly includes a housing, a flywheel mounted for rotation about a rotational axis, a crank member projecting from the flywheel, and a yoke supported by the housing for movement along a yoke axis parallel to the longitudinal axis. The yoke is releasably connected to the shaft and has a linear race formed therein for receiving the crank member. Guide assemblies are connected to the housing and to the yoke for sliding engagement therewith along guide axes parallel to the yoke axis. The yoke is between the guide assemblies. The crank member is caused to translate linearly within the race, thereby urging the yoke to move along the yoke axis to effect longitudinal reciprocating movement of the mixing head.

Abstract: 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 parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. The improvements further include a wall mounting bracket that reduces tampering with the extinguisher, an automatic fluffing motor and manual fluffing wheel with a chuck for use with a drill. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: An apparatus for mixing and dispensing a multi-component compound. The device includes a tubular body with an internal chamber for mixing the multi-component compound. Disposed within and extending beyond the tubular body is a rod having a mixing disc located near a distal end. Also disposed within the tubular body is a moveable piston with a central opening through which the rod may pass.

Abstract: 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 uses a hollow agitator frame that operatively reciprocates from the one end of the vessel to the opposite end, and thereby mixes fluid contained within the vessel. A reciprocating agitator is also disclosed.

Abstract: 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 cross-section to the cross-section of the housing is provided and positioned adjacent the bottom wall of the housing. The agitator frame is pivotally connected internally to the housing for reciprocating movement between first and second positions. The agitation mechanism is operable for preventing fluid channeling to ensure good fluidization of the gypsum products from collecting adjacent the bottom wall of the housing.

Abstract: 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 (55) removably mountable atop the base plate and a housing (42) removably mountable atop the table frame. The apparatus also features a mixing head (30) comprising a generally annular blade body (72) for immersion into the fluids to be mixed within the vessel, the blade body having a centrally positioned hub member (70) defining a substantially vertically directed hub axis, said hub member being attached to and surrounded by a ring portion defining an orifice having a centre of symmetry. A drive shaft (84) is provided for supporting the mixing head within the vessel and extending from the hub member to the housing.

Abstract: 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 and substantially surrounding the flow channel comprising a housing having an internal sealable chamber for containing a first cooling fluid, an inlet having a first seal, and an outlet having a second seal, wherein the first cooling fluid is sealable within the sealable chamber; a second cooling device disposed adjacent to and substantially surrounding the first cooling device comprising a housing having an internal channel for a flow of a second cooling fluid, an inlet in fluid communication with the internal channel, an outlet in fluid communication with the channel, and a device for controlling the flow of second cooling fluid.

Abstract: 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 extending between the first and second ends. The passageway tapers from the first end to the second end. The outer surface of the blade body defines an inside blade diameter “ID” at the second end and an outside blade diameter “OD” at the first end. The blade body is positioned within and coaxial to the vessel. A scotch yoke, operatively connected to the blade body by a shaft, effects reciprocating longitudinal movement of the blade body through a stroke “S”, with a duration “T” for each stroke. Enhanced mixing efficiencies are achieved when the mixer is operated within a set of operational parameters defined by the equation: 80?0.36×OD2/ID2×S/T?550, when OD, ID and S are expressed in inches, and T is expressed in minutes.

Abstract: 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 parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. An external pressurized canister allows easier servicing or replacement of the pressurized canister as well as the ability to maintain the chamber in an un-pressurized condition, allowing non-HASMAT shipping. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: 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 between the distal end and the proximal end. A transfer mechanism having a cap and a stem supporting a piston and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism for advancing the piston and plunger in unison and a second advancement mechanism for moving the plunger independent of the piston. The assembly further includes a removable handle having a shaft for attachment of a mixing blade and a quick-release connector and a release button for locking and unlocking the mixing blade from the removable handle.

Abstract: 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 filter, and a mixing passage. A set of damper vanes extends in the mixing passage and has a mixing position for mixing the flue gases from the inlet passages to supply mixed gas to the outlet passage at relatively high pressure drop but lower temperature if one of the absorbers in not operating. They have a non-mixing position for passage of gases without mixing and at low pressure drop when both absorbers are operating. The invention can also be used to improve mixing of combined gas streams initially having different chemical compositions or amounts of particle loading.

Abstract: 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 filter, and a mixing passage. A set of damper vanes extends in the mixing passage and has a mixing position for mixing the flue gases from the inlet passages to supply mixed gas to the outlet passage at relatively high pressure drop but lower temperature if one of the absorbers in not operating. They have a non-mixing position for passage of gases without mixing and at low pressure drop when both absorbers are operating. The invention can also be used to improve mixing of combined gas streams initially having different chemical compositions or amounts of particle loading.

Abstract: A beverage dispenser includes a container, a transmission shaft, and at least one partitioning plate mounted to the transmission shaft to move therewith. The container includes a compartment for receiving a beverage. The container includes an inlet through which beverage enters the container and an outlet through which the beverage exits the container. The transmission shaft is movable relative to the container. The at least one partitioning plate divides the compartment of the container into at least two subcompartments. At least one passageway is defined between the at least one partitioning plate and an inner circumference of the container to allow communication between the at least two subcompartments.

Abstract: 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 to the second end. The outer surface of the blade and the second end define an inside blade diameter “ID” and the outer surface of the blade and the first end define an outside blade diameter “OD”. The blade is positioned within and coaxial to the vessel. A scotch yoke, operatively connected to the blade by a shaft, effects reciprocating longitudinal movement of the blade through a stroke “S”, with a duration “T” for each stroke, wherein 175?0.36×OD2/ID2×S/T?250 when OD, ID and S are expressed in inches, and T is expressed in minutes.

Abstract: 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 therealong. The shaft includes a dasher having a pair of spaced paddles with a plurality of spaced throughholes extending into the container conforming generally to the inner configuration of the interior of the container but spaced from the inner wall thereof.

Abstract: 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 polymeric cement is present inside said tubular vessel near the first axial end wall. A shaft extends through said aperture of the second axial end wall. A piston element comprises a closed container filled with a second starting component of the polymeric cement. The piston element is selectively lockable to the shaft. The container has a bore and is slidingly engaged upon said shaft. An agitator element is secured to one end of the shaft. Furthermore opening means for providing an opening in the closed container are provided.

Abstract: 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 cylindrical cavity having a first end and a second end; a locking mechanism detachably connected to the front end of the tube so that the outlet opening can be sealed; and a lid detachably connected to the rear end of the tube; the lid having a borehole extending therethrough.

Abstract: 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 of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. Additional improvements include a larger opening to more quickly fill and inspect the powder within the chamber. Another improvement includes the use of a CO2 canister located external to the chamber to allow easier servicing or replacement of just the CO2 canister as well as the ability to maintain the chamber in an un-pressurized condition, allows for non-HASMAT shipping. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

Abstract: 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 cross-section to the cross-section of the housing is provided and positioned adjacent the bottom wall of the housing. The agitator frame is pivotally connected internally to the housing for reciprocating movement between first and second positions. The agitation mechanism is operable for preventing fluid channeling to ensure good fluidization of the gypsum products from collecting adjacent the bottom wall of the housing.

Abstract: 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 arranged as to enclose a glass ampoule containing a liquid bone cement component and, on the other hand, a device for opening the ampoule so that its contents can be sucked into the mixing vessel under partial vacuum. An outer container encloses the inner container at least partially, and is arranged to communicate with the mixing vessel. The inner container, and the outer container, define a space filled with a proportional quantity of a second bone cement component, which is in powder form.

Abstract: 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 outer blade diameter “OD”. The blade is positioned within and coaxial to the vessel. A scotch yoke, operatively connected to the blade by a shaft, effects reciprocating longitudinal movement of the blade through a stroke “S”, with a duration “T” for each cycle, wherein 175?0.36×OD2/ID2×S/T?250 when OD, ID and S are expressed in inches, and T is expressed in minutes.

Abstract: 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 (21), which is sealed by a bottom (10). This carries a nozzle (2) with closure membrane (3). The inner space (21) is closed on the top by the lower wall (6) and the sliding seal (8). The liquid component (9) is situated in the inner space (18) of the inner hollow cylinder (5). This is closed on the top by the upper wall (11). The lower and upper wall (6) and (11) each have an opening with sealing lips (7) and (12) that are closed by parts of the mixing rod (15). A torus (20), a section with smaller diameter (19), a mixing disk (22), as well as a mandrel (24), are present on the lower part of the mixing rod (15).

Abstract: 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 into the compartment of the container. At least one of the components is a liquid. The mixer is raised and lowered within the compartment of the container so as to mix the components.

Abstract: 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 first end and a second end; a locking mechanism detachably connected to the front end of the tube so that the outlet opening can be sealed; and a lid detachably connected to the rear end of the tube; the lid having a borehole extending therethrough.

Abstract: 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 collapsible container is disposed within the chamber so as to rest on the floor. The collapsible container bounds a compartment. A mixer is disposed within the compartment of the container.

Abstract: 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 opening located on a surface of the cover plate. Also provided is a means for producing relative sliding motion between the cover plate and substrate surfaces. The substrate and cover plate surfaces are maintained in fluid-tight contact with each other such that relative sliding motion between the first and second mixing features induces fluid mixing through the first and second openings when fluid is present in the mixing features. Also provided is a method for mixing fluids. The device and method are particularly suited for microfluidic applications.

Abstract: 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 said piston means (17) and at least one sealing ring (23) is located in said groove (22). At least one connecting passage (22e) is provided for preventing a liquid substance (21) from generating or building up such a pressure in an inner space (22d) in the groove (22) within or behind the sealing ring (23) that said pressure presses the sealing ring (23) in a direction outwards (F) relative to the groove (22) towards a surrounding wall (1a) of the mixing device (1) and prevents or counteracts flow of the liquid substance (21) past the piston means (17) when said piston means (17) is displaced.

Abstract: 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 within the tank, and a motor with a crankpin that is connected to the tray carrier in a reciprocating connection that translates the circular path of the crankpin into a linear path of movement of the tray carrier.

Abstract: 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 to the second end. The inner surface of the blade and the second end define an inside blade diameter “ID” and the outer surface of the blade and the first end define an outer blade diameter “OD”. The blade is positioned within and coaxial to the vessel. A scotch yoke, operatively connected to the blade by a shaft, effects reciprocating longitudinal movement of the blade through a stroke “S”, with a duration “T” for each cycle, wherein 175≦0.36×OD2/ID2×S/T≦250 when OD, ID and S are expressed in inches, and T is expressed in minutes.

Abstract: 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 filter, and a mixing passage. A set of damper vanes extends in the mixing passage and has a mixing position for mixing the flue gases from the inlet passages to supply mixed gas to the outlet passage at relatively high pressure drop but lower temperature if one of the absorbers in not operating. They have a non-mixing position for passage of gases without mixing and at low pressure drop when both absorbers are operating. The invention can also be used to improve mixing of combined gas streams initially having different chemical compositions or amounts of particle loading.