Abstract: A lidded vessel assembly comprises a tubular vessel, a lid, and a latching device. The tubular vessel defines a vessel opening and comprises a vessel base, an inner wall, a sealing area and a parking area both defined on the inner wall and both positioned below the vessel opening. The lid comprises a lid base having an inside surface, and a plug projecting from the inside surface of the lid base. The plug is configured to be inserted through the vessel opening to engage the parking area to define a parking position, and configured to be further inserted through the vessel opening out of the parking area to bias against a portion of the sealing area to define a sealing position. The first latching device comprises a first latching element positioned on the inner wall of the vessel, and a second latching element positioned on the outside of the plug.

Abstract: A method for dosing a liquid using a pipette with adjustable dosing step size and an indicating equipment and a syringe that can be operated using the pipette, wherein the syringe is detachably connected to the pipette, at option, the dosing step size is set, or the dosing step size set before is maintained, the dosing volume adjusted via the dosing step size is indicated by means of the indicating equipment, the maximum number of dosing steps possible without refilling the syringe, with the set dosing step size and completely filled syringe is indicated by means of the indicating equipment, liquid is aspirated into the syringe, a reverse stroke is performed after the syringe is filled with liquid, dosing steps are performed, the performed dosing steps are counted and the number of performed dosing steps and/or the number of dosing steps still possible without refilling the syringe is determined and indicated by means of the indicating equipment, after performing the maximum number of dosing steps possible wi

Abstract: A pipette with an adjustable dosing increment, a display apparatus, a drawing lever to draw liquid into a syringe, and a control button to discharge liquid in steps from the syringe, and the syringe actuated by means of the pipette, wherein the syringe is releasably connected to the pipette, the dosing increment is optionally set, or the previously set dosing increment is retained, the dosing volume set by the dosing increment is displayed by means of the display apparatus, liquid is sucked into the syringe by actuating the drawing lever, the respective position of a drive element of a drive mechanism of the pipette for filling and draining the syringe when the drive element is shifted along a path is detected, the possible maximum number of dosing steps with the set dosing increment without refilling the syringe after executing the reverse stroke starting from the position of the drive element reached at the end of filling is determined and displayed by means of the display apparatus, after the syringe is co

Abstract: A centrifuge (10) and a method for preventing the ignition of combustible tempering media in centrifuges (10) after a crash of the centrifuge rotor are presented. Ignition is prevented by the release of a protective gas in the event of a crash. More precisely, the released protective gas forms a flow that displaces the oxygen, distributes the escaping tempering medium and fundamentally changes the momentary ratio of the concentration of oxygen to tempering medium in such a manner that no ignition can take place either inside or outside the centrifuge (10). This means that combustible tempering media can also be used without safety concerns within the scope of controlling the temperature of centrifuges (10).

Abstract: A centrifuge rotor (10) has a closure (32) between a lower part (12) of the centrifuge rotor (10) and a cover (14). The closure has been improved such that proper single-handed operation is made possible. In particular, the closure (32) can be closed and detached again using just one hand. This means that the closure (32) has a simpler structure and can also be produced more cost-effectively.

Abstract: A centrifuge rotor (10) includes a closure (32) between a lower part (12) of the centrifuge rotor (10) and a cover (14). The centrifuge rotor has been improved such that proper single-handed operation is made possible. In particular, the closure (32) can be closed and detached again using just one hand. This means that the closure (32) has a simple structure and can also be produced cost-effectively.

Abstract: A multisensor and a process for the production of the multisensor for a bioreactor for use in cell culture and/or in microbiology is disclosed. The multisensor comprises at least three measurement arrangements configured to measure at least three parameters, where a first of the three measurement arrangements is configured to carry out an impedance measurement and/or a capacitive measurement, and where the first measurement arrangement has at least two electrodes which comprise an electrically conductive plasti.

Abstract: A multichannel syringe for use with a metering device having a barrel holding apparatus of a syringe barrel and an axially movable holding apparatus of a syringe plunger comprising: a plunger unit having a drive rod comprising the plunger holding apparatus, a crossmember on the lower end of the drive rod, and a plurality of syringe plungers projecting downward and parallel to the drive rod, a barrel unit comprising a support and rows of syringe barrels arranged in a parallel manner, protruding downwards from the support, and having lower and upper syringe openings, and a running region, wherein each syringe plunger engages a syringe barrel through, an upper syringe opening and is sealingly guided in the running region, and the barrel holding apparatus is above the syringe barrel and is connected to the support.

Abstract: An electronic dosing drive comprising a support structure, a threaded spindle with an external thread for driving a plunger, at least one first guide element is firmly connected, and is guided parallel to the threaded spindle on a second guide element, a spindle nut having an internal thread is engaged with the external thread of the threaded spindle, an electric drive motor having a motor shaft is coupled with the spindle nut and is attached to the support structure, an electric control apparatus is connected to the electric drive motor, where the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.

Abstract: A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.

Abstract: A pipette comprises a pipette housing comprising an upper end and a lower end, a nipple configured to contact and retain a pipette tip, a drive apparatus configured to aspirate a liquid specimen into the pipette tip and expel the liquid specimen from the pipette tip, and an ejection apparatus. The ejection apparatus comprises a curved support rotatably mounted within the pipette housing, an ejection rod, a first sensing element positioned on the ejection rod and configured to be guided on a first curve on a perimeter of the curved support, and an operating element coupled to the curved support and configured to rotate relative to the pipette housing. The ejection apparatus is configured to rotate the curved support out of a start position by rotating the operating element. The first curve displaces the first sensing element downward a the ejection rod moves the pipette tip off of the nipple.

Abstract: A device for pipette tips having a refill pack, a plate having holes, pipette tips, a shell below the plate, an inner lid above the plate which has a base and side walls and a latch; a holder having a bottom; an outer lid having a base and side walls; a pivotal connection for the lid and holder; a support projecting from a side wall engaging the bottom of a lid side wall; a second latch having a support which latches with the first latch; an unlocking button having an actuator on the outside of the second lid side wall and a pressing element on the inside of the second lid side wall which may be pressed against the outside of the first lid side wall to deform the first lid side wall and undo the latching between the first and second latches.

Abstract: A centrifuge insert for sample receivers and to a carrier for a centrifuge insert for sample receivers with snap locking connection. The centrifuge insert according to the invention has substantial advantages over known centrifuge inserts. These advantages are not limited to the fact that the carrier is attachable and disengageable in a particularly easy and comfortable manner. It is also feasible to use various carriers for different sample receivers. Furthermore, the centrifuge insert according to the invention is configured particularly light and compact so that a loading of the rotor is significantly lower for identical centrifugation powers or so that significantly higher RCA values can be used.

Abstract: A spindle drive comprising a threaded spindle with an external thread, a spindle nut with an internal thread that is in engagement with the external thread of the threaded spindle, characterized in that the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.

Abstract: A method for the contact metering of liquids having the following steps: a first liquid is introduced into at least one elongate hollow body, some of the first liquid contained in the elongate hollow body is pressed out of the lower end of the elongate hollow body as a contacting volume such that the contacting volume forms a drop suspended from the lower end of the elongate hollow body, at least some of the drop is immersed in a second liquid in a target vessel and the defined metering volume consisting of the contacting volume and a residual volume contained in the elongate hollow body is dispensed into the second liquid.

Abstract: A pipette for actuating a syringe including a strip-shaped housing with first and second receptacles for inserting fastening sections. First and second releasable holding mechanism for holding the fastening sections. First and second displacing mechanisms to displace a receiving body in the housing from the receptacles. A toothed rack and a pawl are connected to an actuation rack. A cover has a coupling element and longitudinal slot and spring.

Abstract: The present invention relates to a centrifuge having a compressor cooling device and it also relates to methods for controlling a compressor cooling device of a centrifuge. The centrifuge according to the invention has a controllable throttle device in the refrigeration cycle of the compressor cooling device.

Abstract: A metering head comprising: a carrier having parallel attachments, a stop plate having first holes through which the attachments extend, each attachment having: a tube with a projecting supporting protrusion, a sleeve with a tapering at the bottom end, an elastomer O-ring that encloses the tube, and the sleeves can be shifted between a release position and a clamping position; in the clamping position, the sleeves with the taperings are pressed into the O-rings and expand them, a first shifting apparatus shifting the sleeves between the release position and the clamping position, a second displacement apparatus shifting the stop plate between a stop position and an ejection position, wherein the second shifting apparatus has rocker arms pivotably mounted on the carrier, transmission shafts that are coupled to the sleeves, and ejection shafts which are securely connected to the stop plate.

Abstract: A manual injector for cell manipulation comprising a displacement device for displacing a fluid, an injection tube connected to the displacement device, and a capillary holder connected to the injection tube for holding a microcapillary tube or a microcapillary tube connected to the injection tube, wherein the displacement device has the following: a disk-shaped main body that, on a first end face, has an hollow cylinder space which is concentric with its middle axis, a disk-shaped adjusting wheel, a helical gear, a hollow cylindrical plunger, a rotational decoupling that connects the adjusting wheel to the plunger, and a connection connected to the cylinder space to which the injection tube is connected.

Abstract: A method for automatic speed control of an orbital shaker device to determine one of at least two stacked orbital shaker devices operating in an out of balance condition includes the steps of a) Starting the first orbital shaker device, b) Accelerating the first orbital shaker device, and c) Determining a vibration level of the first orbital shaker device, and d) Automatically decreasing a speed of the first orbital shaker device if the vibration level determined in step c) exceeds a predefined first threshold, wherein the steps a) to d) are additionally executed for a second orbital shaker device independently from the first orbital shaker device.