Abstract: A mixing device for producing reduced porosity bone cement. The device having a movable member (6), preferably a movable piston, which is adapted to press out or discharge bone cement (2) from the mixing device (1). The piston is fixedly mounted in the mixing device. The piston maintains its position when bone cement (2) is mixed in a mixing space in the mixing device. The mixing device is under a vacuum during mixing. After mixing, the piston is released such that it can be drawn into the mixing device (1) toward a discharge opening (13) by a vacuum prevailing in the mixing device (1). The moving piston is used for collecting clumps of bone cement (2) in the mixing device (1) adjacent to the discharge opening (13). By collecting the clumps of bone cement by the moving piston (6) under a vacuum, the porosity of the bone cement (2) is reduced.

Abstract: An extremely compact and accurate device for simultaneously dispensing a plurality of liquids in individually pre-set volumes having: (1) substantially identical radially arranged sets having: a positive displacement metering piston pump, a fluid reservoir which houses a tint, a stirrer, and a valve spring; (2) an interconnecting passage connects the sets to respective dispensing nozzles; (3) a drive plate which moves the pistons and the stirrers between two pre-determined vertical positions for pumping and mixing the fluid; (4) a value for controllably diverting individual liquids independently in predetermined amounts from normally returning from the pumps to the reservoirs to move instead from the pump to small circularly arranged discharge nozzles; (5) a mechanism for aligning paint containers for tint dispensing; and (6) a solvent saturation system for reducing evaporation of fluid.

Abstract: A process and apparatus is disclosed for the mixing and direct emplacement of a bone cement formed from two components, one liquid and one powder, comprising the steps of storing the two components separately in a multichamber container, opening the liquid phase container within one of the said chambers which is not in communication with the outside atmosphere, setting up a negative pressure within the chamber containing the powder phase, causing aspiration of the liquid into the chamber containing the powder, mixing the two phases, compacting the paste obtained, injecting the paste into a cannula and extruding the paste with direct emplacement of the cement.

Abstract: An agitator is disposed in the interior of a casing through which fluids to be mixed pass. The agitator is connected with a source of oscillation for oscillating the agitator in the axial direction. The inner wall of the casing includes a stationary vane extending inwardly therefrom. A relative motion is generated between the agitator and the stationary vane. When the fluids flow through the interior of the casing, they are agitated and mixed together by impingement of the fluids against the stationary vane and agitator and by the relative motion between the stationary vane and the agitator.

Abstract: The apparatus is adapted to be held in one hand of an operator from mixing components of a composition packaged as two or more individually stable components of substantially equal volume and viscosity each in a receptacle having a closure made of a material which can be ruptured, and to dispense the mixed composition by a manual operation. The device comprises a mixing housing, separate chambers for the receptacles, piercing means for piercing the receptacles, plunger means for expelling a component from the chamber into the mixing region, a mixing element in the mixing region, and a passageway which contains means for actuating the mixing element and through which the mixed composition may be expelled from the mixing region.

Abstract: A method for producing bone cement by mixing components forming part thereof, whereby mixing occurs in vacuum in a mixing device (1) and whereby ready-mixed bone cement (2) is collected in the mixing device (1) before it is ejected or discharged therefrom. For reducing the volume of porosity of the pores formed in the bone cement (2) during collection, the bone cement (2) is collected in vacuum to provide vacuum in those pores in the bone cement (2) which are formed during collection, whereby the volume of porosity in the bone cement (2) is reduced when the bone cement is subjected to atmospheric pressure after collection.

Abstract: An improved mixing and dispensing apparatus for reconstituting and remixing reconstituted juice concentrate includes a container, a spout, a cap with a skirt and a mixing element with a shaft having a handle at one end and a mixing head at the other end. The mixing head is adapted to displace the liquid substantially radially and non-circularly and only moderately axially relative to the shaft as the shaft is reciprocally displaced axially relative to the cap. The container has indicia for indicating the quantity of liquid contained therein. The container generally has a non-circularly shaped cavity which, in cooperation with the mixing head, prevents rotational displacement of the mixing head relative to the cavity. Alternatively, a shaft opening in the cap and a cross-sectional profile of the shaft cooperatively prevent relative rotational therebetween.

Abstract: The present invention relates to an arrangement for the manufacture of bone cement by mixing together its constituent components comprising a mixing cylinder (1) in the form of a tube with a bottom (2) and a lid (3) and inside the mixing cylinder an axially movable agitator (4). The agitator consists of a piston-like agitator disc (4a), which is perforated by channels (4a1), through which the components of the bone cement are caused to flow during the mixing procedure and an agitator rod (4b) resembling a piston rod operatively connected to the agitator disc (4a) and supported in the lid (3) in such a way that it is free to slide. The invention is characterized in that the agitator rod (4b) has an axial channel (4b1), which is closed off at the agitator disc (4a) in such a way that it is capable of being opened.

Abstract: A pharmaceutical mixing container for storing a liquid having at least two factions which tend to separate during storage. A housing has an inner volume and is closed at one end by a septum arrangement. An extendable mixing element is slidably and sealingly positioned within the inner volume, the mixing element including a base member having a longitudinally extending through bore, a flexible bellows element secured to the base member and an actuating rod slidingly received within the through bore and coupled to the central portion of the bellows element. The bellows element is an axially symmetric member having convoluted concentric wall portions, and the actuating rod is coupled to the central region of the bellows element. By manipulating the actuating rod in opposite directions, the bellow is alternately extended and retracted to create general gentle agitation for any liquid and miscible component contained within the housing.

Abstract: A process and apparatus is disclosed for the mixing and direct emplacement of a bone cement formed from two components, one liquid and one powder, comprising the steps of storing the two components separately in a multichamber container, opening the liquid phase container within one of the said chambers which is not in communication with the outside atmosphere, setting up a negative pressure within the chamber containing the powder phase, causing aspiration of the liquid into the chamber containing the powder, mixing the two phases, compacting the paste obtained, injecting the paste into a cannula and extruding the paste with direct emplacement of the cement.

Abstract: A compost handling machine comprising a carriage to support the machine for movement along a composting bay, and a compost agitating and conveying assembly to agitate compost in, and to move the compost along, the bay. The agitating and conveying assembly includes a conveyor subassembly and a drum subassembly. The conveyor subassembly includes a plurality of lifting cleats that, in use, are moved around a closed path to lift compost in the bay and move the compost rearwardly therein. The drum subassembly includes an agitating drum extending between and supported by a pair of support arms, and the drum is rotated to agitate and comminute the compost in the bay.

Abstract: A two-component bone cement mixing system comprises a cartridge mixer having an interior volume containing a first predetermined quantity of a free-flowing, powdery, solid bone cement component under vacuum pressure; an ampoule containing a second predetermined quantity of a liquid bone cement component; a fluid transfer element for fluidically connecting the cartridge mixer and the ampoule for transfer of the liquid bone cement component to the cartridge mixer; and a plug element, receivable within the ampoule, for automatically hermetically sealing the fluid transfer element against passage of a material therethrough upon completion of the transfer of the second predetermined quantity of the liquid bone cement component into the cartridge mixer.

Abstract: A dissolution testing machine has a container for a liquid and a holder for pellets, a support for supporting the holder within the container and a drive enabling the holder to be reciprocated via its support so that solvent flushes into and out of the holder.The holder may be a mesh tube, or a solid walled tube, closed at both ends by an apertured member. A set of containers may receive the holder successively, each container containing a solvent of the same or different characteristics.

Abstract: The present invention provides a mixer having a duct into which a fluid (or fluids) is (or are) inducted and a stirrer disposed within the duct and adapted to stir and/or mix the fluid (or fluids) by repeating division and join on the fluid (or fluids) when the fluid (or fluids) moves (move) through the duct. The stirrer has a vane device dividing the interior of the duct into a plurality of spaces and openings formed in the vane device and through which the fluid (or fluids) moves (move) from one space to another. The mixer further includes a vibrator for vibrating the stirrer at a desired frequency. The vibrator may be of any one of various types vibrators such as an electromagnetically driven type vibrator consisting a coil and a permanent magnet, a motor drive type vibrator consisting of a motor-cam mechanism of a cam-follower mechanism and the like.

Abstract: The mixing device is used for mixing multicomponent materials or for homogenizing compositions which are contained in a cartridge (10) which is closed by a piston (15) having a passage opening (19). The latter is primarily closed by the shaft (22) of a mixing member (20). Said shaft (22) may be coupled to a rod (23). By a drive or by manual operation, the rod (23) may be rotated and moved axially at the same time. While the piston (15) stays, where it is, the mixing member (20) is moved through the cartridge (10). Upon termination of the mixing operation, the mixing member (20) is locked at the piston (15) by a holding member (32) in order to unscrew the rod (23) from the mixing member. Subsequently, the cartridge may be inserted into a squeezing tool in which the piston (15) is advanced for squeezing out the composition.

Abstract: A compost handling machine comprising a carriage to support the machine for movement along a composting bay, and a compost agitating and conveying assembly to agitate compost in, and to move the compost along the bay. The agitating and conveying assembly includes a conveyor subassembly and a drum subassembly. The conveyor subassembly includes a plurality of lifting cleats that, in use, are moved around a closed path to lift compost in the bay and move the compost rearwardly therein. The drum subassembly includes an agitating drum extending between and supported by a pair of support arms, and the drum is rotated to agitate and comminute the compost in the bay.

Abstract: An automatic spice and herb dispenser including a plurality of separate independent compartments, each compartment including an upper spice and herb storage chamber and a lower dispensing chamber. A vibrator is disposed in each upper chamber for breaking up any spices and herbs therein. A measured dispenser is provided at the bottom of each lower chamber for receiving broken up herbs and spices therein.

Abstract: The apparatus comprises a container (1) with rigid or flexible walls containing one or two resin components and a container (26) of thin glass or fragile synthetic resin containing the other component. Container (26) at the moment of use is broken either by manually compressing container (1) or inserting a rod (5) provided with handle (11) through guide piston (39) and through the container (26) until reaching disk (27) to which the rod is screwed or fastened by flexible teeth, which disk serves as a mixing piston to mix the two components, prior to distributing them from an outlet (2).

Abstract: A device for whipping cream or egg whites having a cup-shaped cylindrical housing with a preformed bottom, a cap releasably locking the open top, a perforated plunger piston connected to one end of the piston rod and movable within the housing, the piston rod being movable through the cap and formed with a handle at its opposite end, one of two perforated plates spaced from the plunger piston on the piston rod. The perforated disc is biased by a spiral coil spring from the plunger and may be further biased from a second perforated disc. When the discs and plunger are compressed together, any product between them is squeezed out through their holes.

Abstract: A dispenser for storing, mixing and dispensing two components. A casing contains the first component and has a piston therein. A mixing tube containing the second component is axially housed in the casing and has an open end sealed by the piston until mixing of the two components is desired. The mixing tube has a mixing plate adjacent the open end to agitate and mix the two components. The mixing plate comprises arms extending from the mixing with flapping vanes attached on one side of each arm.

Abstract: The injection cartridge comprises two containers (1, 2) one of which is slidably mounted in the other. An actuating rod (8) has a smooth leading portion (9) and a rear threaded portion (10) separated by a threaded intermediate portion (11). The container (1) has in its end (12) a threaded opening (13) receiving the threaded intermediate portion (11). The nozzle (5) of the container (2) has a thread (15) for receiving the thread (14). The threaded portion (10) of the rod (8) has a nut for abutting against the first container to push it towards the other container. The cartridge may be used for injecting a semi-pasty product into a protective sleeve for a joint in a telephone cable.

Abstract: Disclosed is a mixing and dispensing system including a tubular housing with an inlet opening for receiving a first liquid ingredient and a tubular casing for retaining a second liquid ingredient to be combined therewith. A piston is longitudinally movable in the tubular casing to force the second liquid through an outlet opening that liquid tightly engages the inlet opening of the tubular housing. Extending through an end of the tubular housing opposite to the inlet opening is a rod having an inner end secured to a seal mechanism for contacting the inlet to liquid tightly seal the inlet opening. The rod also extends through and is longitudinally movable within a passage in a plunger having an outer periphery conforming to the inner walls of the tubular housing. A coupling mechanism is operable to selectively secure the plunger to the rod so as to provide common longitudinal movement thereof.

Abstract: A system for storing a dry powdered drug component and a liquid in separate containers and mixing them immediately prior to injection. The system has a hypodermic syringe with an axially slidable stopper, and the syringe is coupled to a rigid tubular housing with a low friction vacuum movable piston. Simple reciprocation of the syringe stopper with an attached plunger having a laterally extending thumb pad or other graspable slip resistant surface automatically reciprocates the housing's low friction piston and causes quick and complete turbulent mixing. There is no need to turn the device over and over in the operator's hands to alternately squeeze or push opposite ends of the device.

Abstract: The method for mixing substances employs a reciprocating movement provided by mechanical impulses. The apparatus for mixing substances comprises a reservoir, a mixing means, a reciprocating movement mechanism of the mixing means, which mechanism includes eddy current electromagnetic inductors coupled to a current source having a storage capacitor, a turn-on sequencer for said inductors, and elements made of electrically conducting material. The invention substantially improves the effectiveness of the mixing operation and provides for increased labor, productivity, and reduces the power requirements needed to drive the apparatus.

Abstract: An injection cartridge contains a number of components in separate chambers. To use the cartridge, the chambers are brought into communication and the components mixed to form a compound such as an adhesive which can then be injected into a hole.The cartridge has a rigid housing which incorporates a movable mixing rod for mixing the components together, a displaceable injection opening and a piston which can be moved along the housing to extrude the mixed compound out through the injection opening.

Abstract: A piston-cylinder unit includes a cylinder having an inner cylindrical wall face; a pressure piston slidably accommodated in the cylinder and arranged for being driven into the cylinder by an external force. The cylinder defines a cylinder chamber in which pressure is generated by the pressure piston forced into the cylinder. The pressure piston has a radial bottom and a generally cylindrical outer face extending axially away from the piston bottom. In the outer face of the pressure piston, adjacent the bottom, there is provided a circumferential recess which, together with an overlying circumferential portion of the inner cylindrical wall face of the cylinder defines an annular chamber surrounding the pressure piston. The radially measured width of the annular chamber gradually decreases in a direction axially away from the piston bottom. A sealing ring is disposed in the annular chamber and sealingly engages the inner face of the cylinder even when situated in the widest zone of the annular chamber.

Abstract: A mixing apparatus for continuously preparing pulverous to granular thermoplastic synthetic material. The mixing apparatus includes a tubular, rotatably mounted horizontal container, on the inner surface of which mixing instruments or tools are attached. An inlet and outlet for the material to be mixed are respectively located near the ends of the container. A shaft is rotatably arranged about the axis of the container and extends at least over the entire length of the container. Mixing instruments are likewise attached to the shaft. The mixing instruments, in the region between the inlet and outlet, comprise a plurality of sections of single or multi-threaded worms which extend in the radial direction from the shaft to the inner surface of the container. These sections are adjacent to and spaced from one another, and are alternately mounted to the shaft and to the inner surface of the container.