Abstract: A drawer for bulk liquid supply and provides a system for receiving a plurality of containers with samples, comprising a housing which is arranged below a movable drawer, wherein the drawer comprises a frame for receiving a plurality of containers, and containers wherein the drawer comprises vertically arranged spacers on a first longitudinal inner side wall for separating the frame into compartments, wherein each compartment is configured to receive a container, and wherein the drawer is connected to the housing by two pull-out rails located on both longitudinal sides of the housing below the frame.

Abstract: A device for purification of samples, comprising a rotatable carousel with container-receiving positions, each for receiving a container. A fixed circuit board is attached to one side of the carousel, wherein the fixed circuit board comprises a toothed rack guide for vertically moving an aspiration needle up and down; a motor for actuating the toothed rack; light barriers for determining the angle of rotation of the carousel; and bubble sensors for monitoring aspiration of fluids from the containers and rinsing of the aspiration needle. The rotatable carousel comprises four vertically on top of each other arranged levels. A first level comprises injector assemblies for dispensing fluids and an aspiration needle rinsing station for cleaning of the vertically crossing aspiration needle. A second level comprises a plurality of container-receiving positions, each for receiving a container. A third level comprises stacked printed circuit boards. A fourth level comprises a base plate.

Abstract: A piezo shaker for shaking a probe is disclosed. The piezo shaker comprises a platform operatively connected with at least one piezo element, wherein the at least one piezo element deforms for controlled movement of the platform, wherein the piezo shaker further comprises transmission means connecting the at least one piezo element and the platform, and wherein the transmission means transmit the movement to the platform. The piezo shaker may comprise two piezo elements, arranged to operate along different directions, in particular perpendicularly.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool including a housing having an interior chamber, a plurality of supports rotationally mounted to a lower portion of the housing arranged to move the cleaning apparatus over the surface of the pool. At least one inlet and at least one outlet, and a filter and a water pump disposed in the interior chamber, the water pump configured to establish a flow path through the housing by drawing water and debris from the pool into the housing through the at least one inlet, directing water through the filter, and discharging filtered water out of the housing to the pool through the at least one outlet, wherein the at least one outlet is configured to direct a pressurized stream of water at an acute angle with respect to the surface over which the apparatus moves.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.

Abstract: A device and a method for dosing an uptake or a release of a liquid. The device comprises a pump pumping a fluid, a pump drive driving the pump, and a fluid channel connected to the pump. A tip is connected to the fluid channel comprising an opening for the uptake or the release of the liquid. At least one flow sensor measures a flow rate of the fluid in the fluid channel. A controller monitors and adjusts the flow rate and/or pressure in the fluid channel.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.

Abstract: A piezo shaker for shaking a probe is disclosed. The piezo shaker comprises a platform operatively connected with at least one piezo element, wherein the at least one piezo element deforms for controlled movement of the platform, wherein the piezo shaker further comprises transmission means connecting the at least one piezo element and the platform, and wherein the transmission means transmit the movement to the platform. The piezo shaker may comprise two piezo elements, arranged to operate along different directions, in particular perpendicularly.

Abstract: A self-propelled robotic pool cleaner (100) has a first pair of driven brushes (12, 14) and second pair of free brushes co-axially mounted for rotation on axles (16) at the opposite ends of the pool cleaner. The first pair of brushes are mounted on one side and are driven by a drive motor (110); the second pair of brushes are mounted on the opposite side of the cleaner. A rotational delay clutch (30) is co-axially positioned between each pair of the first and second brushes so that reversing the drive motor causes the first pair of driven brushes to temporarily rotate at an angular rotational velocity that is greater than that of the second pair of brushes, thereby pivoting the pool cleaner through a predetermined angular change in direction before the synchronous rotation of the second pair of dual brushes is initiated by the engagement of the clutch.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.

Abstract: A self-propelled cleaning apparatus for cleaning a submerged surface of a pool or tank includes a housing having a front portion as defined by the direction of movement of the apparatus when propelled by a water jet, an opposing rear portion and adjoining side portions defining the periphery of the apparatus, and a baseplate with at least one water inlet. Rotationally-mounted supports are coupled proximate the front and rear portions of the housing to enable movement of the apparatus over the submerged surface. A water pump is configured to draw water and debris from the pool through the inlet for filtering. A stationary directional discharge conduit is in fluid communication with the pump and has at least one discharge opening through which a pressurized stream of water forming the water jet is directionally discharged at an acute angle with respect to the surface over which the apparatus is moving.

Abstract: A self-propelled robotic pool cleaner (100) has a first pair of driven brushes (12, 14) and second pair of free brushes co-axially mounted for rotation on axles (16) at the opposite ends of the pool cleaner. The first pair of brushes are mounted on one side and are driven by a drive motor (110); the second pair of brushes are mounted on the opposite side of the cleaner. A rotational delay clutch (30) is co-axially positioned between each pair of the first and second brushes so that reversing the drive motor causes the first pair of driven brushes to temporarily rotate at an angular rotational velocity that is greater than that of the second pair of brushes, thereby pivoting the pool cleaner through a predetermined angular change in direction before the synchronous rotation of the second pair of dual brushes is initiated by the engagement of the clutch.

Abstract: A method and apparatus for controlling the directional movement of a self-propelled robotic pool cleaner having at least one pair of rotational support members for propelling and cleaning a surface of a pool. The method includes accelerating the at least one pair of rotational support members of the pool cleaner from a stopped position to a first predetermined rotational rate in a first predetermined time period; rotating the at least one pair of rotational support members at said first predetermined rotational rate for a second predetermined time period; and increasing the first rate of rotation to a second greater predetermined rotational rate, wherein said pool cleaner is propelled at a normalized rate for cleaning said pool.

Abstract: A device and a method for dosing an uptake or a release of a liquid. The device comprises a pump pumping a fluid, a pump drive driving the pump, and a fluid channel connected to the pump. A tip is connected to the fluid channel comprising an opening for the uptake or the release of the liquid. At least one flow sensor measures a flow rate of the fluid in the fluid channel. A controller monitors and adjusts the flow rate and/or pressure in the fluid channel.

Abstract: A pool cleaning apparatus includes a housing and a pump for drawing water and debris through an intake port into a filter. A jet-valve housing having a jet valve flap is mounted over the pump to direct a propulsion jet stream from the pump to move the cleaner in a forward direction. A cleaning nozzle is mounted over each of the front and rear portions of the housing, and a pressurized water jet stream is directed at a first pool surface beneath the cleaner through the front end nozzle while moving in a forward direction. When the cleaner engages a second pool surface substantially perpendicular to the first surface, propulsion outlets of the jet valve housing are partially closed to redirect a portion of the propulsion jet stream to the front-end nozzle to lift the front end of the cleaner off the first surface. When the front end of the cleaner disengages from contact with the second surface, the propulsion outlets open to permit the propulsion jet stream to propel the cleaner along the second surface.

Abstract: A power consuming device is configured to be electrically connected to a power connection point of a power distribution system of a datacenter. The power distribution system includes a hierarchy of power supply equipment. A first label is associated with the power connection point and includes power supply information that indicates the power connection point's place in the hierarchy of power supply equipment. A second label is associated with the power consuming device and includes identification information that identifies the power consuming device. A reader is configured to read the first label to obtain the power supply information and to read the second label to obtain the identification information.

Abstract: A method and apparatus for controlling the directional movement of a self-propelled robotic pool cleaner having at least one pair of rotational support members for propelling and cleaning a surface of a pool. The method includes accelerating the at least one pair of rotational support members of the pool cleaner from a stopped position to a first predetermined rotational rate in a first predetermined time period; rotating the at least one pair of rotational support members at said first predetermined rotational rate for a second predetermined time period; and increasing the first rate of rotation to a second greater predetermined rotational rate, wherein said pool cleaner is propelled at a normalized rate for cleaning said pool.

Abstract: A self-propelled robotic pool cleaner (100) has a first pair of driven brushes (12, 14) and second pair of free brushes co-axially mounted for rotation on axles (16) at the opposite ends of the pool cleaner. The first pair of brushes are mounted on one side and are driven by a drive motor (110); the second pair of brushes are mounted on the opposite side of the cleaner. A rotational delay clutch (30) is co-axially positioned between each pair of the first and second brushes so that reversing the drive motor causes the first pair of driven brushes to temporarily rotate at an angular rotational velocity that is greater than that of the second pair of brushes, thereby pivoting the pool cleaner through a predetermined angular change in direction before the synchronous rotation of the second pair of dual brushes is initiated by the engagement of the clutch.

Abstract: A method for accurately controlling the directional and turning movement of a self-propelled robotic pool cleaner while cleaning a pool includes the steps of propelling the pool cleaner in a first direction along a generally straight path from a first sidewall toward an opposing sidewall of the pool, wherein said pool cleaner is propelled to a position in the pool corresponding to a distance greater than the midpoint between the first sidewall and the opposing sidewall and before contacting the opposing sidewall of the pool; stopping the pool cleaner at the position and pivoting the pool cleaner to a predetermined angular change in direction; and reversing direction and resuming propulsion of the pool cleaner, wherein the pool cleaner moves in a second direction along a generally straight path that is angularly displaced from the first direction.