Abstract: A system for emptying a gravity separated fluid including a flexible bag storing the fluid arranged within a protection structure, the protection structure including a bottom element forming the lower section of the protection structure, the flexible bag being connected to the protection structure, and includes at least one fluid conduit providing fluid communication between the flexible bag and outside the protection structure. A first outlet pipe is arranged inside the flexible bag near the bottom element and is connected to and in fluid communication with the at least one fluid conduit. A perforated tube surrounding the outlet pipe provides an annulus fluid passage, water is supplied to the structure volume, and the fluid is emptied through the at least one fluid conduit, through the perforations in the perforated tube, through the annulus fluid passage to the first outlet pipe.

Abstract: A drive mechanism suitable for use in drug delivery devices is disclosed. The drive mechanism may be used with injector-type drug delivery devices, such as those permitting a user to set the delivery dose. The drive mechanism may include a housing, a dose dial sleeve, and a drive sleeve. A clutch is configured to permit rotation of the drive sleeve and the dose dial sleeve with respect to the housing when the dose dial sleeve and drive sleeve are coupled through the clutch. Conversely, when the dose dial sleeve and drive sleeve are in a de-coupled state, rotation of the dose dial sleeve with respect to the housing is permitted and rotation of the drive sleeve with respect to the housing is prevented. In the de-coupled state, axial movement of the drive sleeve transfers force in a longitudinal direction for actuation of a drug delivery device.

Abstract: A dispensing appliance for a double cartridge comprises a housing for receiving multiple components and a rotatable portion having a thread, the two parts cooperating in such a manner that by rotating the rotatable portion, a multiple plunger acting upon the pistons in the housing is continuously displaceable relative to the housing in the dispensing direction. To this end, the housing is configured to comprise at least two adjacent storage containers, and the thrust force of the rotatable portion is directly transmitted to a multiple plunger. The rotatable portion may have an internal thread and the double plunger a feed flange with a corresponding external thread, in order to actuate the latter in the axial direction upon rotation of the rotatable portion. This arrangement allows dispensing even highly viscous materials with little manual force under high pressure in a precisely metered manner.

Abstract: A discharge apparatus comprising at least one container (1; 101) is provided, said container receiving a component and having an outlet (2) and a discharge element (3, 103). The discharge apparatus further comprises a rotating device, which has a drive member (4; 104) and a rotating member (5; 105), wherein upon a rotation of the rotating member relative to the drive member the drive member is moved in the axial direction and drives the discharge element in the at least one container for discharging the components. A housing element (6; 106) is provided, on or in which the at least one container (1; 101), the drive member (4; 104), and the rotating member (5; 105) are disposed, wherein at least the at least one container (1; 101) can be removed or is provided in the housing element (6; 106). The rotating device, together with the housing element, forms an accessory for the container.

Abstract: A nebulizer having an insertable container and a monitoring device for counting actuations of the nebulizer is proposed. The monitoring device is mounted in a detachable housing part and directly detects movements of container during a nebulizing process, an air supply current in the region of a mouthpiece, and/or the production of aerosol, in order to detect this as the actual dispensing of fluid and actuation of the nebulizer, while preferably the time of actuation of the nebulizer is additionally detected and stored. This allows better monitoring and guidance for the user.

Abstract: An infusion device comprises a pusher for a plunger of a syringe containing a liquid to be infused. A load cell measures the push force. An encoder associated to a motor commanding the pusher measures the displacement of the pusher. A controller signals an alarm when the ratio between the variation of the push force and the displacement exceeds a predetermined threshold. The device, which serves for infusing an anticoagulant into an extracorporeal blood circuit in a dialysis apparatus, is able to signal an onset of an anomalous situation of lack of infusion in good time.

Abstract: A dyeing brush includes a handle having a first blind hole defined in the neck and a second blind hole defined to communicate with the firs blind hole. A knob is rotatably received in the first blind hole and has a threaded hole defined through the knob to communicate with the second blind hole of the handle. A hollow tube has an attachment fixedly attached to a side face of the tube and having teeth extending out from a side face of the attachment. A threaded bolt is rotatably and movably received in the tube to correspond to and threadingly extend through the knob. A cover is to close the upper opening of the tube and has an extension to be received in the cutout of the tube.

Abstract: A syringe has a sensor for sensing physical contact between a syringe needle and the syringe. As the sensor detects that a syringe needle has just been installed into the syringe, a counter is set to “zero”, indicating the number of injections given with the installed needle. The counter automatically and cumulatively counts each injection given to the animal during a period of continuous physical contact between the syringe and the syringe needle. When the number of cumulatively counted injections equals a predetermined maximum number of injections, a syringe needle change warning mechanism delivers a needle change warning to the operator of the syringe.

Abstract: A milk powder dispenser for dispensing a predetermined amount of milk powder is provided. The dispenser includes a base unit, a milk powder measuring unit, and a control unit. The base unit includes a base plate formed with an opening. The milk powder measuring unit is mounted on a bottom side of the base plate and confines a milk powder retaining chamber that is aligned with the opening in the base plate. The control unit has a top wall formed with an inlet opening and extending slidably between the measuring unit and the base plate, and a bottom wall formed with an outlet opening and extending slidably below the measuring unit.

Abstract: A medication delivery pen is provided having a medication cartridge holder assembly, a pen body assembly and a cap. The reusable pen body assembly includes an improved loading and priming mechanism that allows the user to easily load a new cartridge and prime the pen without having to manually manipulate the pen's lead screw and related driving components.

Abstract: A breakage-resistant form of separatory funnel or other laboratory glassware, such as addition funnel, flask, buret, or chromatography column, is provided. The glassware features an unbreakable plastic stem, preferably removably attached, below the glass stopcock in place of the usual glass stem.

Abstract: A container for dispensing a solid deodorant and/or antiperspirant. The container comprises a housing, a platform, a dispensing member, and a level indicator. The housing has an open top end for dispensing the deodorant and/or antiperspirant contained therein, a bottom end, and a side wall. The platform is positioned within the housing for supporting the deodorant and/or antiperspirant. The dispensing member is mounted in the housing and attached to the platform for moving the platform from the bottom end of the container towards the open top end of the container for dispensing the deodorant and/or antiperspirant. The level indicator is provided on the platform for indicating an amount of deodorant and/or antiperspirant remaining in the container, the amount of deodorant and/or antiperspirant remaining being indicated by the position of the platform as it is moved within the housing.

Abstract: An injection device medication delivery pen is provided for injecting fluids such as insulin within body tissue. The device includes a housing, a piston rod movably mounted within the housing, and a dose setting mechanism for controlling the movement of the piston rod with respect to a fluid containing cartridge removably positioned within the housing. The piston rod includes a plunger and a lead screw slidably positioned within the plunger. The plunger and lead screw are coupled by a pair of half nuts. The half nuts may be uncoupled from the lead screw in order to allow it to slide freely with respect to the plunger. A new cartridge may accordingly be installed quickly and easily as the lead screw is easily displaced by a new cartridge.

Abstract: An injection device is provided for injecting fluids such as insulin within body tissue. The device includes a housing, a piston rod movably mounted within the housing, and a dose setting mechanism for controlling the movement of the piston rod with respect to a fluid containing cartridge removably positioned within the housing. The dose setting mechanism includes a units counter ring and a tens counter ring. A transmission key is provided for selectively coupling the units and tens counter rings so that they rotate together only during selected portions of the dose setting procedure. The piston rod includes a plunger and a lead screw slidably positioned within the plunger. The plunger and lead screw are coupled by a pair of half nuts. The half nuts may be uncoupled from the lead screw in order to allow it to slide freely with respect to the plunger. A new cartridge may accordingly be installed quickly and easily as the lead screw is easily displaced by a new cartridge.

Abstract: A variable proportion dispenser (2b) includes a housing (180) which houses two pharmaceutical cartridges (6b, 7b). A reciprocating drive assembly includes drive stems (36b, 37b) extending from the pistons (46b, 46c) of each cartridge, a sliding body (66b) mounted to the housing, and two one-way drivers (198, 232, 234) and threaded dosage adjusters (60b, 61b) carried by the sliding body. Each one-way driver drives the drive stem into the cartridge through a smooth drive surface to provide a continuous range of dose selections. The user can thus control the amount and proportion of each pharmaceutical dispensed during each delivery stroke for each dispensing cycle.

Abstract: The invention relates to a dispensing assembly which is usable in conjunction with a container holding viscous materials such as shortening, grease, paste or the like. The top and bottom of the container are replaced with a top cover having a dispensing spout adjacent the periphery and a central shaft opening and a bottom cover having a central shaft opening. Interconnecting the top and bottom coveris a threaded shaft which extends through the viscous material in the container. A piston which translates upwardly on the shaft, when the shaft is rotated, is threaded on the shaft and is located between the viscous material and the bottom cover. A wing nut or similar means at the lower end of the shaft secures the top and bottom covers to upper and lower edges of the container.

Abstract: A dosing syringe has a cylindrical syringe body which at its tapering end has a dispensing orifice and at its other end a stepped cylindrical enlargement with two opposing handles. A recess is located below each handle, and a piston is inserted into the cylindrical syringe body. The piston is in contact with a dosing plunger having an external thread. Two threaded sides are arranged around the plunger and each threaded side has a positioning projection introduced into the recesses of the enlargement. According to the invention, the piston is connected to the dosing plunger by a spring retainer connection and the threaded sides have an outside groove in which an O-ring is inserted in countersunk fashion to hold the two threaded sides together. As a result, the piston-dosing unit can be prefabricated and introduced as a complete unit including the threaded sides into the enlargement of the syringe body where it is fixed simplifying the production technology of the dosing syringe.

Abstract: A syringe assembly having a cylinder adapted to receive a hypodermic needle at one end thereof and a piston reciprocably movably disposed in the cylinder. The exterior of the piston is at least partially threaded and it includes a longitudinal, exterior groove extending over the length of the thread. The cylinder includes a piston thread engaging section which is integrally constructed, e.g. molded with the cylinder, and hingeable relative to the cylinder so that the thread engaging section can be moved through a cutout in the cylinder into engagement with the piston thread. The cylinder has an integrally constructed collar at its open end and forms a detent that can be resiliently biased against the piston so that upon rotation of the piston about its axis the detent engages the longitudinal groove and thereby generates a signal each time the detent engages the groove, i.e. each time the piston is rotated through a predetermined arc and dispenses a predetermined, measured amount of liquid.

Abstract: A material metering device having a discrete flow rate adjustment and indicator mechanism. The indicator includes an actuator knob which is rotated to adjust the flow rate of material from the meter. The actuator knob is also operably connected to a follower wheel which is rotated by movement of the actuator knob. Indicia on both the actuator knob and follower wheel are simultaneously registerable with a reference point, such as a viewing window, and the reading of the indicia at the reference point indicates the flow rate of material from the meter.

Abstract: A separatory funnel having a valve stem mounted through its center to accurately open, close, and regulate the flow of liquid from the funnel. The valve stem is provided with a passageway therein for forming a separate channel from the path of liquid flow to permit air to pass through the separatory funnel independently of the liquid flow from the funnel. This air passageway may exit internally of the funnel chamber, or externally thereof. In the external exit version, the valve stem is modified so that the air exit path can be capped and/or connected to another device. The lower end of the valve stem is provided with sealing structure of several types for assuring a tight and positive seal when the valve is closed. Also, the lower end of the valve stem is sandblasted to effect flow of all liquid therealong and tapered to a spherical ball at the very end for collecting and forming liquid droplets for precision liquid flow measurement.

Abstract: A metering or dosing device connected to the neck of a squeeze-type tube or container, and capable of metering the amount of fluent material that can be discharged from the container after each removal of a closure cap screw-threaded, or otherwise secured, onto the neck of the container. The dose to be dispensed by the device is determined by the extent to which the cap is mounted on the container.

Abstract: Dispensing apparatus with a pain of fluid dispensing cylinders each having a piston driven through a separate differential transmission with two inputs. One of the inputs of both transmissions is driven by a first electric motor. The other inputs are connected to counterrotating output shafts of a gear box driven by a variable speed second electric motor to introduce unlike inputs into the differential transmissions so that the ratio of fluid dispensed by the cylinders is varied by operation of the second motor in different directions and at different speeds. During the return stroke of the pistons the second motor is operated at a rate higher than its rate during the dispensing stroke so that any difference in the length of the dispensing stroke of the pistons is reduced to zero before the pistons home, whereupon the second motor is de-actuated and the first motor alone homes the pistons to prevent the pistons from getting out of phase.

Abstract: A rotary power hand tool with a rotary chuck is mated to a push-in piston-type dispensing container of caulking via an adapter which mounts on the tool and is secured to the chuck. The adapter has a plunger provided on the end of a non-rotating screw. When the tool trigger is actuated, a transmission on the actuator is operated to advance the screw and plunger thus advancing the piston of the dispensing container. In the preferred embodiment a peg secured to the drive screw and protruding out of the adapter doubles as a way of preventing the drive screw from rotating and as a way to indicate the relative amount of contents remaining to be dispensed until the container is effectively empty.

Abstract: A reuseable pressurized container and metering device for dispensing predetermined amounts of fluid. The device includes a metering chamber having two apertures with a central stem disposed therein. Two sealing rings are mounted on the stem, each adjacent an aperture, and are adapted to allow fluid to be forced into a reservoir through the metering device but are arranged to prevent the flow of fluids out of the metering device except when the stem is displaced by pressing a button attached at one end. One of the rings on the stem seals the metering chamber from an external charging and discharging passage and the other ring simultaneously seals the metering chamber from the reservoir while the fluids contained within the metering chamber are being discharged, thereby limiting the quantity of fluid which can be dispensed.

Abstract: A dispensing device for high-viscosity compositions includes a hollow cylindrical body in which the composition is contained between a closeable discharge opening at the front end of the body and a piston movable in the longitudinal direction of the body. The piston is driven by a threaded spindle engaging a threaded nut and bearing with its front end against the rear face of the piston. The nut is slid in a direction transverse to the longitudinal axis of the body into engagement with a flange provided at the rear end of the body. A detent mounted on the nut cooperates with a longitudinal groove provided on the spindle to indicate the angular position of the spindle, thus the amount of composition being discharged, in addition to preventing the spindle from reverse rotation.

Abstract: A liquid dispensing device for chemical titration having a reciprocating plunger for expelling fluid from an attached titrating solution cartridge, and a lead screw for reciprocating the plunger whose rotation is measured and displayed by a digital rotation counter. The plunger can be selectively uncoupled from the lead screw to permit direct plunger positioning. A pair of manual knobs allow rapid direct rotation of the lead screw or slower, geared down rotation of the screw.

Abstract: A material dispenser using a deformable tube through which the flow of material is controlled is described. The deformable tube is selectively mounted to expose a pinch region to a pressure element having a predetermined shape. The deformable tube is selectively supported to enable precise control over tube constriction for accurate material flow control. A micrometer stop is conveniently mounted to regulate the size of the tube restriction. Automatic and repeated actuation of the dispenser is obtained by locating the pressure element as a piston in a cylinder. Various deformable tube embodiments are described to reduce tube wall stresses for longer operating life and enable both positive closure and opening of the deformable tube.

Abstract: This invention is a method and apparatus for dispensing a predetermined weight of liquid. The apparatus comprises a calibrated vessel having an elongated tubular section in open communication with the top of the vessel, means to fill the vessel to a level in the elongated tubular section, a displacement means which provides an area of reduced cross section at the liquid level in the tubular section, means to monitor the temperature of the liquid, means to adjust the position of the displacement means in response to temperature changes of the liquid and means to dispense the liquid. The apparatus can dispense a predetermined weight of liquid over a broad temperature range. The method comprises the steps necessary to dispense the predetermined weight of liquid.