Abstract: The laboratory apparatus is used for separating gaseous, liquid and solid substances from gas samples (for example air) to be trace analyzed. It comprises a vessel and a mixer insert with nozzles. The gas fed into the mixer insert emerges from the nozzles at high speed into an absorption liquid held in the vessel so that intensive mixing and hence high absorption of the substances takes place. After passing through the liquid the gas leaves the vessel via an outlet. The substances absorbed in the liquid are available for analysis.

Abstract: A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commmercial applications and is subject to forces which tend to work the impeller loose from attachment with its driving shaft, is secured to the shaft by collars (locking rings) which are threaded on the ends of hubs from which the blades of the impeller extend. In order to secure the attachment of the collars to the hub, a locking key is inserted between the collar and the shaft. The inner periphery of the collars are tapered outwardly away from the shaft. The neck of the locking key has portions which are deflected against these tapered inner peripheries when a pin is inserted through the neck of the locking key. A ramp on the collar mates with a ramp on the key to prevent reverse rotation (working loose) of the collar. The impeller is restrained against axial movement by the collar and against rotational movement by being keyed to the shaft and restricted by the ramp on the collar.

Abstract: An agitator comprises a vessel having an intake (101) through which a medium is introduced into the vessel, and rotating guide devices (12) for guiding and discharging the medium. The inner and outer defining surfaces of the vessel have a hyperbolic, conical shape and the cross-sectional area of the intake increases progressively towards the guide devices. The guide devices (12) extend horizontally towards the periphery of the vessel and are mounted on a horizontal rotatable bottom plate (11) which is driven for rotation from beneath.

Abstract: A mixer that includes separate connectable motor and mixing housings, which motor housing includes an electric motor that turns an output shaft that extends into the mixing housing. The mixing housing is open to admit a cup containing a material for mixing, which mixing is accomplished by turning the motor output shaft whereto the handle end of a spoon is releasable mounted. The spoon head end is for turning in the material, which spoon mounting is a longitudinal slot in the output shaft end to accommodate the spoon handle end fitted therein and a close fitting resilient sleeve telescoped over that output shaft end, the resilient sleeve interior adhering to the spoon handle edges.

Abstract: A mixer tool (8) for an ice-cream maker is provided which is insertable centrally into a cylindrical container (1) of the ice-cream maker and is operable there in rotation and which has at least one scraper (12, 13) projecting from a central shaft (6) and acting with the walls of cold cartridge 3 through its scraper edges (16, 17) and which also has at least one stirrer (14, 15) projecting from a central shaft (6), effective at least in the vicinity of the container wall (7), the stirrer effecting in the container flow at least directed from bottom to top of an ice-cream mixture filled into the latter. The stirrer also has at its free upper end close to the container wall a knife-shaped scraper (20, 21) projecting over the stirrer and acting together with the container wall to prevent formation of ice cream deposits above the stirrer.

Abstract: The invention features a mixing device comprising a rotatable impeller having a multiplicity of blades. Each blade of the impeller has an optimal angle of attack with respect to the fluid being mixed.An elliptical, fluid flow-through aperture in each blade provides for an improved flow stream about the impeller blades. The impeller is mountable upon a rotatable shaft which can be rotatively driven by a household drill.

Abstract: A mixer incorporating a shaft having one end which is adapted to be received into the chuck of a drill and the other end which includes a specially shaped mixing blade. The blade includes triangular end portions that are both angled up relative to the general plane of the blade. Rotation of the blade in one direction causes fluid to be pushed down and to the side. Reversing the blade direction causes the fluid to be pushed upward and to the side.

Abstract: The invention is directed to an improved mixing arrangement for securing the blade to the shank of a mixing apparatus. The blade includes a borehole which overlies and surrounds a substantial portion of the shank so as to substantially reduce direct abrasive contact of the shank. Accordingly, the shank has longer life. Further the blade is mounted and secured by a single bolt which when unsecured allows the blade to be axially moved off the shank from an upright position which is most easily accessible by a person performing maintenance on the mixing apparatus.

Abstract: The invention relates to an apparatus for treating a particulate thermoplastic material.This apparatus comprises a container (1) divided internally by a perforated partition (12) which serves as a passage for a purging gas. A suitable rotor (6) provided with blades (10) and (11) allows the treated charge to be maintained temporarily at a distance from the stationary and rotating internal walls of the apparatus.The invention applies especially to the coloring of particulate plastic materials by coating.

Abstract: A method and apparatus are described for injecting material into a waste sludge lagoon and mixing the material in the lagoon to solidify and stabilize the waste in-situ. The apparatus includes a slotted bucket adapted to be secured to the articulated arm of a backhoe or like equipment. The bucket has a manifold in the upper interior portion thereof which is coupled to a source of the additive or reagent material to be dispensed under pressure. In a preferred embodiment the material is a dry powder which is dispensed pneumatically through the manifold into the bucket and the waste as the bucket is moved back and forth through the waste lagoon. The manifold preferably is a cylinder having mutually spaced holes, slots or nozzles. The bucket also may have a vane structure across the scoop opening for further agitation of the sludge as it enters or leaves the bucket.

Abstract: A stirring mechanism, with a plurality of hollow, at least partially conically shaped stirring elements, which are provided with two openings, are symmetrically offset and are fixed on the stirring shaft (2) at least approximately tangential to an imaginary circular cylinder coaxial to the stirring shaft.In the starting phase, the stirred substance flows laminarly through the stirring elements 8. However, as soon as they have reached a predetermined minimum velocity of about 1.3 m/s, the flow inside the stirring elements 8 is forced to reverse by dynamic pressure. The resultant counterflow (11, 12, 13) brings about an outstanding, extensive and nevertheless extremely gentle stirring effect with low power consumption. Also, an effective and uniform gassing can be obtained with simple means, without the stirring velocity having to be increased.

Abstract: A mixing implement suitable for blending a variety of liquids with other liquids or with particulate matter. The implement comprises one or more coils or helical members threaded through one or more holes in a shaft. The hole being suitable for passage of the coil material through it and the shaft being suitable in length and diameter to drive the coil circularly when immersed in material to be mixed. The shaft is fitted with a resilient collar slidably disposed on the shaft. During mixing, the collar is disposed away from the material to be mixed. Afterwards the collar is slid down the shaft body toward the coil to clean away mixed material clinging to the shaft.

Abstract: A plasticizing screw for an injection molding machine or the like having one or more lands in a crest portion of a screw flight to prevent the screw flight from coming into contact with a cylinder wall surface when the plasticizing screw is rotated during a molding operation. The land has a smaller diameter than that of a crest portion of the screw flight and is provided at the screw flight crest portion either between leading and trailing surfaces of the screw flight or extending from the leading edge of the screw flight. The land can also be provided as a plurality of circumferentially spaced-apart lands on the side of a front surface of the screw flight, or provided at a central portion between the leading and trailing surfaces of the screw flight.

Abstract: An adjustable agitator assembly having a hexagonal shaft to which is attached a hexagonal hub. A mounting block is attached to the hub at the desired locations. The mounting block has a receptacle to receive the splined shaft of a paddle. The splines allow the orientation of the paddle to be changed to many different discrete positions while at the same time preventing the paddle shaft from slipping. Seals are used to prevent penetration of the contacts between the various parts of the assembly by the media which is stirred.

Abstract: A stirrer comprises a frame fixed to a drive shaft (6) including coupling means (18) for coupling the drive shaft to a drive motor (8), and according to the invention the stirrer includes at least one bottom scraper segment (15) extending downwards from the frame along a bottom edge thereof, together with adaptor means (14) for changing the distance between the coupling means (18) and a bottom edge (19) of the bottom scraper segment.

Abstract: A rotary mixing and straining apparatus (10) for liquids (100) including a shaft member (16) secured on one end to a rotary power tool (15) and equipped on the other end with a mixing head unit (13) including a generally cylindrical open framework member (20) surrounded by a screen member (40) whereby the liquid (100) is forced outwardly through the screen member (40) by centrifugal forces and recirculated through the open top of the framework member (20).

Abstract: A disposable agitator (12, 12A) for a food mixer (10) includes an elongate hollow sleeve stem (16, 24) which fits over and rotates with an elongate rotatable shaft (11, 11A) of the mixer (10). An agitator blade (17, 25) configured in the shape of a bowl of a spoon is positioned at the bottom of the stem (16, 24). In one embodiment a detent (18) in the stem (16) engages a recess (14) in the shaft (11) while in another embodiment a barb (29) engages a flange (23) on the shaft to longitudinally position the agitator (12) on the shaft (11). The agitator is used by sliding the hollow stem (16, 24) upwardly over the shaft (11, 11A) to, in one embodiment, to cause the detent (18) to engage the recess (14), and in the other embodiment to cause the barb (29) to engage the flange (23). After mixing the food product, the user is induced to remove the agitator (12, 12A), because the blade (17, 25) is configured like the bowl of a spoon, by sliding the stem (16, 24) downwardly away from the shaft (11, 11A).

Abstract: A method and apparatus are described for injecting material into a waste sludge lagoon and mixing the material in the lagoon to solidify and stabilize the waste in-situ. The apparatus includes a slotted bucket adapted to be secured to the articulated arm of a backhoe or like equipment. The bucket has a manifold in the upper interior portion thereof which is coupled to a source of the additive or reagent material to be dispensed under pressure. In a preferred embodiment the material is a dry powder which is dispensed pneumatically through the manifold into the bucket and the waste as the bucket is moved back and forth through the waste lagoon. The manifold preferably is a cylinder having mutually spaced holes, slots or nozzles. The bucket also may have a vane structure across the scoop opening for further agitation of the sludge as it enters or leaves the bucket.

Abstract: A stirring implement designed for use in stirring beverages such as coffee or tea has an elongated shaft connected to a thin flat blade which has parallel side walls connected by radiused corners to a straight bottom edge. The straight bottom edge affords maximum engagement with the bottom surface of a beverage container for maximum stirring efficiency. A hook member may be provided intermediate end portions of the shaft for engagement with a top side wall edge of a beverage container. The stirring blade may be provided with a serrated cutting edge for utility food uses and with a scraping blade for spreading condiments such as jellies or butter upon pastry items.

Abstract: A stirring apparatus that can be used to stir food while it is cooking. The present invention also affords the user with a great deal of adaptability as it can accommodate a large variety of pot sizes. The continuous stirring nature of the present invention improves the quality, color, and taste of the food items which it stirs, because the stirrer rotates constantly while the food is cooking. Moreover, the present invention reduces cleanup time and effort as the food in the pot is less likely to stick to the sides and leave hard-to-remove residues.

Abstract: The tool includes a shaft adapted at its upper end to receive a power source. Flighting extends partially along the shaft above a pair of radially directed elongate blades which project outwardly from the shaft a distance beyond the flighting edge. A modified form dispenses with the flighting.

Abstract: An apparatus for high shear mixing of material comprising a hub having a rotation axis, a flange attached to the hub and extending radially outwardly therefrom, an impeller operatively attached to the hub for rotation therewith and axially spaced from the flange and an annular skirt attached to the flange, the skirt having a plurality of openings spaced around the circumference, an annular chamber being formed by the hub, the flange, the impeller and the skirt, the impeller having blade formations adapted to pump the materials being mixed into the annular chamber and out through the openings as the apparatus is rotated about the rotation axis.

Abstract: A mixing arm for a domestic food processor is provided with a bell in which is fitted a mixing tool driven at high speed by a rotating shaft adapted to be coupled to a drive unit. The bell has a partition extending downwards transversely to the top wall and thus dividing the space beneath the bell into a suction zone and a compression zone, the upper region of the partition having a transfer opening connecting the two zones.

Abstract: A rotary device for mixing viscous liquids within a container. A vertical rotary driven shaft is connected to a circular disc at its terminal end. Radial or tangential mixing vanes are connected to the top surface of the disc and a baffle plate or cover disc is located over the vanes to prevent vertical flow in the area of the vanes. A central flow passage is provided about the shaft. Fluid is driven laterally outwardly by the vanes and replacement fluid is pulled downwardly by a pumping action along the shaft and likewise driven laterally outwardly for mixing. A removable washer shaped flow restrictor is placed in the central flow passage, vertically supported by the inner ends of the vanes and held in place by the downward flow during rotation of the mixing device.

Abstract: There is disclosed an improved paint stirrer especially adapted for stirring paints of the type having pigments normally held in colloidal suspension, which pigments settle out of colloidal suspension with time, formed by an elongate body portion having an upper end and a lower end, the upper end provided with a hand grip section formed integrally with the elongate body portion, the lower end of the elongate body portion provided with flexible stirring means fixedly secured thereto and formed by a plurality of flexible and pliable members thereby to contact paint pigments which have settled out of colloidal suspension and to replace the pigments into colloidal suspension prior to the use of the paint.

Abstract: A mixing apparatus for use in mixing liquids such as paints or oil base stains wherein the mixing apparatus consists of a plurality of imwardly extending perimeter baffles and upwardly extending inner baffles to obstruct the free flow of liquid during the rotation of the container and, in the preferred embodiment, the baffles are molded as an integral part of the liquid container to provide a convenient container wherein the liquid may be mixed by merely rotating the container.

Abstract: A dissolution rate analyzer for determining the solubility of pharmaceutical products. It automatically loads, mixes, and samples the test product; then cleans and dries the test vessel before repeating the process. The analyzer has a plurality of vessels with agitator blades. Each blade has a series of channels and is attached to a hollow shaft which is rotatable and vertically displaceable. The channels in the blades are connected by the hollow shaft with sources of fluid and air. By pumping liquid and air out the channels in the blades, and simultaneously rotating the agitator and moving it up and down, the vessel thoroughly cleans itself. The cleaning liquid is drained off through a valve in the bottom of the test vessel. A magazine connected to a dispenser loads the next sample, fluid is added, and the mixture is agitated before analysis of the next sample begins.

Abstract: A kitchen appliance for the mincing or shredding of cooked pieces of beef for the preparation of corned beef includes an upwardly open bowl of substantially round cross-section and an upwardly protruded tool shaft which extends centrally thorough a bottom portion of the bowl and can be driven at high speed by a power source underneath the bowl bottom. On the tool shaft there is fixed a chopping tool having radially outwardly extending blades. The blades are arranged at different relative heights.

Abstract: A multi-color luminous stirrer including a handle housing therein a battery and a shank composed of two tubular-shaped electrodes coupled together mechanically through an insulating ring. When the tubular-shaped electrodes are submerged in a drink, a switching circuit is actuated and in accordance with the movement of an electroconductive ball placed freely on a flat electrode that is connected to the battery and encircled by curved electrodes which are electrically connected to a plurality of illuminants housed at the tip of the shank by transparent or translucent cap, ON and OFF states are created between the electrodes. Thus, the illuminants emit light at random. The tubular-shaped shank may alternately be formed of a highly heat conductive material, with a bimetal housed therein so that when the tubular-shaped shank is dipped in a drink which is different in temperature from that of the ambient air, the switching circuit is actuated.

Abstract: A mixing device (2) provided with a motor (12) received in a work portion (3) for driving a mixer rod (7) is adapted to be assembled without the need for screw-threaded connections and adhesives. For this purpose, the individual components (12, 19, 24, 4, 60, 70) are so relatively arranged and equipped with noses and projections for interengagement or latching that, after all components are fitted together, a completely assembled mixing device (2) is obtained which is totally enclosed in its outer circumferential contour.

Abstract: Apparatus for milling metal powder in a mill is disclosed which comprises a central shaft, the top of which is rotatably mounted to rotating apparatus, bottom stirrer(s), attached to the bottom edge of central shaft, upper stirrer(s), attached above the point of attachment of the bottom stirrer(s), and two or more primary stirrers, upper ends of which are attached to outer edge(s) of the upper stirrer(s) and the bottom ends attached to bottom edge(s) of the bottom stirrer(s). The bottom stirrer has a downward sloping leading edge with a first angle formed by a first plane extending along this edge to a second plane extending along the bottom of the mill, this angle being 10.degree. to 90.degree., the first angle being that between those faces of the first and second planes within which the bottom stirrer sits.

Abstract: A submersible mixer support system for use in sewage treatment systems and the like has parallel tubular guide bars supporting at least one mixer stand unit having a slow rotation, large propellered mixer thereon. The mixer stand unit is releasably clamped to the parallel guide bars by clamping units each having a horseshoe-shaped resilient clamping block deformable when a clamping pressure is applied thereto by a preload assembly located remotely therefrom. The mixer support system facilitates removal and servicing of the various subassemblies located thereon. A guide system is provided in order to remove, inspect and reinstall the tubular guide bars.

Abstract: A submersible mixer support system for use in sewage treatment systems and the like has parallel tubular guide bars supporting at least one mixer stand unit having a slow rotation, large propellered mixer thereon. The mixer stand unit is releasably clamped to the parallel guide bars by clamping units each having a horseshoe-shaped resilient clamping block deformable when a clamping pressure is applied thereto by a preload assembly located remotely therefrom. The mixer support system facilitates removal and servicing of the various subassemblies located thereon.

Abstract: A rotating impeller for stirring liquids contained in tanks. Strip-like blades of simple form radiate from a central hub, in swept-back configuration relative to the direction of rotation. The blades are angled relative to the hub so as to exert a forward and downward force upon the liquid as the impeller rotates, and the blade curvature is such that the area projected upon the liquid by the solid structure of the rotating blade is less than the corresponding area that would be projected by an otherwise similar blade in which imaginary straight lines connected all adjacent vertices, and any void areas lying within the boundaries of those imaginary lines had been filled in. The preferred arrangement of the blades is such that when the impeller is arranged with its axis vertical, curvature of each blade along its length is such that it extends away from the hub in a diminishing downward curve, reaches a lowest point, and then rises again before the blade tip is reached.

Abstract: A dual magnetic stirring bar arrangement is disclosed wherein a pair of elongated substantially cylindrical stirring bars are supported in spaced, substantially parallel relation by a holder. The holder has a curved or arcuate side and a flat side so that the arrangement is adaptable for use within confined or compact spaces in flat or curved bottom containers or the like to provide a greater stirring force than would otherwise be the case.

Abstract: An impeller apparatus for dispersing a gas into a liquid in a vessel includes a centrifugal flow turbine, the blades (621) of which are formed with a substantially stream-lined trailing surface terminated by a sharply pronounced spine (63). The blade is formed by a plate-like initial blank being cut to a shape having a central line of symmetry, the blank then being folded along the straight line of symmetry.

Abstract: An automatic swimming pool cleaning apparatus has a surface supply hose connected to a floating unit and a further underwater hose that is connected at one end to the surface unit in fluid communication with the outlet of the surface hose and at its other outlet end to a non-buoyant cleaning unit. The underwater hose and the cleaning unit have jets directed in a downstream direction so that the cleaning unit moves through water in the pool and the underwater hose pushes the surface unit around. The cleaning unit carries a bag in which debris is collected. The surface hose also carries a jet to pull the surface unit around. The surface unit also has a jet which displaces and rotates the surface unit. The surface unit has a flotation member that is rotatable about a vertical axis. A first connector is rotatably mounted below the flotation member and a second connector is rotatably connected to the first connector.

Abstract: A device with vertical buoyancy tanks fitted to its upper part is provided with rotors which generate horizontal and vertical propulsion, and which stirs the liquid uniformly as it moves freely through a liquid storage tank, thereby preventing the accumulation of sludge. The vertical buoyancy tanks stabilize the stirrer and provide a restoring force if the stirrer is upset. The stirrer is fitted with an ultrasonic ultrasonic wave emitter, and ultrasonic receptors are installed at several positions in the liquid tank. An ultrasonic pulse is emitted after a certain interval when the stirrer is at rest on the bottom of the tank. The position of the stirrer is computed for each pulse emission, and the average is taken to give the actual position of the stirrer.

Abstract: Apparatus for the mixing and cooling of hot, particulate matter, such as hot, retorted oil shale, comprises a plurality of enclosed, vertically spaced apart, converging vessels through which the material to be mixed and cooled is flowed. At least the lowermost vessel is configured for a packed bed flow of the material and has mounted therein, on a vertical drive shaft, a mixer blade assembly having a plurality of similar mixing blades which are upwardly inclined at an angle, A.sub.1, of between about 30.degree. and about 75.degree. and preferably within about .+-.15.degree. of the sidewall angle of the vessels. The blades are mounted so as to have an angle of attack, A.sub.2, relative to the rotational direction of travel, of between about 20.degree. and about 60.degree.. A constant angle of attack along each mixing blade is assured by making the angle, A.sub.3, between the blade leading edge and the blade base to be related to the blade inclination and attack angles in accordance with the relationship:A.sub.

Abstract: It is an egg-beater (or egg-whisk), particularly, an automatic egg-beater, which comprises a cylindrical handle on the upper half portion; the top of the cylindrical handle is mounted with a 16-side (or 16-polygonal) cap; the feature of the rotary cap not only can prevent from being slippery upon rotating it by hand, but also can prevent from rolling away upon placing it on a flat surface. The cap is connected to an inner cylinder which is sleeved inside the cylindrical handle. A motor being fixed on a base is mounted in the inner cylinder. The center rod of the agitator and the lower end of the motor spindle are connected together by means of a fan blade assembly. The bottom of the cylindrical handle is substantially a round base with several concentric round grooves for fitting containers or cups with different diameters. Upon pressing the top switch on the handle, the motor will drive the agitator to rotate at a high speed to agitate the egg liquid in the container.

Abstract: A whisk structure includes an elongated handle and having a counterbore defined by an internal wall surface formed at a first radius and a plurality of first-diameter bores located along a second radius, the second radius exceeding the first radius by a dimension no larger than the radius of the first-diameter bores. The end portions of the whisking loops are each received within respective first-diameter bores with a securing disc received with the counterbore to forcibly retain the whisking loop end portions in their respective bores and a fastener means for maintaining the securing disc in the counterbore. One or more whisking loops may be removed by removing the circular retainer and removing one or more the whisk loops.

Abstract: A floating mixer of the type including a float for buoyantly supporting the mixer in a water treatment basin, a mixer drive motor mounted on the float and extending upwardly therefrom, and a propeller drivingly connected to the motor and disposed below the float for pumping liquid downwardly to effect mixing in the water treatment basin. A foam dispersing spray nozzle is mounted above the drive motor for discharging in a downwardly directed generally conical spray pattern outwardly of the drive motor, and an auxiliary pump is provided for pumping liquid from the basin to the spray nozzle.

Abstract: This invention relates to a screw used in an equipment for molding thermoplastic resin, in which a mixing section is provided at a position adjacent a shearing section, and the pitch of a stress relaxation section is preset to the pitch, at which satisfactory kneading can be performed without giving high shearing to the resin. With this screw, even if high-speed extrusion molding is performed, the pressure of resin is not fluctuated, molded parts can avoid lowered material quality and outstanding molded parts can be provided.

Abstract: A vertical autoclave for carrying out operations involving a medium having a liquid phase and/or a solid phase includes:(a) a concave autoclave bottom;(b) a shaft along a vertical axis of said autoclave, said shaft passing through said bottom of said autoclave; and(c) stirrers for driving said medium with a centripetal motion about said concave autoclave bottom.

Abstract: A floating vertical shaft downflow directional mixer apparatus including a float, a motor driven propeller mounted on an upright propeller shaft below the float, and a draft tube extending downwardly from the float and having a lateral discharge outlet. The float is arranged to support the mixer with the propeller shaft generally upright when the mixer is not in operation. The draft tube and lateral discharge outlet are bilaterally symmetrical with respect to a median plane and a thrust reaction line is attached to the lower portion of the draft tube generally symmetrical to the median plane to counteract the reaction forces on the mixer produced by the stream discharged from the discharge outlet and maintain the propeller shaft generally upright when the mixer is in operation.

Abstract: Apparatus for mixing liquid and liquid suspension mediums in vessels with a mixing impeller shaft system of a composite of fibrous and plastic material of a structural configuration to enable the use of such material in commercial and industrial applications where the reaction loads of the medium on the system militate against the use of composite fibrous and plastic material. The system utilizes impellers having blades which distribute the reaction load through a hub on a mounting area of a shaft with keys and keyways in a manner to avoid stress risers unamicable to the composite material and which can cause failure thereof. Separate keys and keyways are provided to oppose the thrust due to the reaction loads and to oppose the torque due to such loads. Plural thrust keyways may be used to enable the impeller to be located at different positions on the shaft and at selected heights above the floor of the mixing vessel.

Abstract: A mixing blade assembly including a hub, a set of impeller blades having air foil configurations and flat end portions for attachment to corresponding flat surfaces of mounting members which attach the blades to the hub. The flat attachment surfaces avoid stresses tending to distort the blades. The hub is a hollow member made from a set of plates. The leading edges of the blades are generally straight, and the trailing edges are inclined rearwardly from the tips towards the roots of the blades.

Abstract: A device for preparing a beaten product and including a beater assembly driven rotatively about a generally vertical axis, with an improved beater assembly comprising an elongate rotor body having at least one blade unit formed integrally with the rotor body. Each of the blade units comprising an elongate base member formed integrally with the rotor body and a plurality of spaced blades formed integrally with the base member.

Abstract: A kitchen device suitable for foaming food materials, comprising a container for reception of food materials to be whipped by a rotary member which is specific in shape and is mounted at the inside bottom of the container, the member being moved about its vertical axis by a driving mechanism provided outside the container. The configuration of the rotary member is substantially a cone containing a side peripheral portion which is concave or inwardly curved in vertical cross-section.

Abstract: A rotor element for use in extrusion and compounding machinery that incorporates means for mixing a low viscosity or immiscible additive with high viscosity base stocks such as polymer melts. The rotor incorporates a combination of one or more helical flights with an array of mixing pins arranged in the cylindrical screw root.