Abstract: The current invention is disclosing a sensor to monitor changes of bilirubin blood levels. The sensor of the current invention includes a bleaching light source(s) and a sensor light source(s) and a detector(s). The invention of the disclosed sensor lies in the bleaching light source in addition to a light source that is used for optical measurement. The bleaching light source is bleaching and photocatalytic, converting bilirubin into water soluble isomers/derivatives that are faster removed from the skin and secreted by the body. As a result, deposited bilirubin is removed in the light path of the sensor light source, and the non-invasive method of the present invention is measuring the bilirubin blood level without interference from deposited bilirubin in tissue, e.g. skin. The non-invasive optical sensor and method may be applied in monitoring the progression of jaundice and to manage jaundice phototherapy.

Abstract: The invention concerns a hand-held device with a removable tip for dispensing an agent and/or sampling a fluid; a tip for use in connection therewith; wherein said tip is additionally provided with at least one abutment member located on the outside of said tip, and a container for use therewith which is adapted to facilitate the removal of tips from said device and to receive same for disposal. The invention further includes a method for attaching and ejecting a tip from said hand-held device by rotating the tip with respect to said device to bring about alignment of the alignment guides until a best fit is achieved; and ejecting the tip from the hand-held device by inserting the tip into said container and aligning said abutment member on said tip with the boundary corresponding to same in said aperture then rotating said tip with respect to said device to eject the tip from the device.

Abstract: A method and a hand held laboratory device to control screen navigation on a display instrument such as a smart phone or tablet computer by using predetermined movements of the hand held device caused by the user. The display instrument controls the hand held laboratory device, which allows the user of a hand held device to operate the device without the need of touching the display instrument.

Abstract: A disposable photometric measurement tip comprising a polymer tip, the polymer tip having a capillary filling channel, the capillary filing channel having an opening at a distal end of the polymer tip, a wave guide channel acting as an optical input coupling and a wave guide channel acting as an optical output coupling, each of the wave guide channels having an opening at a proximal end of the polymer tip wherein the capillary filling channel, the wave guide channel acting as an optical input coupling and the wave guide channel acting as an optical output coupling are connected to each other.

Abstract: A disposable measurement tip for an instrument for measuring at least one parameter of a sample, the measurement tip comprising; a tip body; a filling channel in the tip body for holding the sample to be analyzed and having an opening on one end of the tip body to receive the sample; a population of micro-particles held within the tip body filling channel and which can be mixed with the sample when the sample is received in the filling channel; wherein in use the sample in the tip is illuminated by the instrument and the illumination which impinges on the micro-particles is directed back, by the micro-particles, to the instrument to be detected and to thereby enable the at least one parameter to be determined.

Abstract: A brushless direct current motor with a stator and rotor uses permanent magnets facing the stator and which are held in place by springs that urge the magnets toward the periphery of a support structure for the rotor.

Abstract: A method and a hand held laboratory device to control screen navigation on a display instrument such as a smart phone or tablet computer by using predetermined movements of the hand held device caused by the user. The display instrument controls the hand held laboratory device, which allows the user of a hand held device to operate the device without the need of touching the display instrument.

Abstract: A disposable photometric measurement tip comprising a polymer tip, the polymer tip having a capillary filling channel, the capillary filing channel having an opening at a distal end of the polymer tip, a wave guide channel acting as an optical input coupling and a wave guide channel acting as an optical output coupling, each of the wave guide channels having an opening at a proximal end of the polymer tip wherein the capillary filling channel, the wave guide channel acting as an optical input coupling and the wave guide channel acting as an optical output coupling are connected to each other.

Abstract: An annular housing has an inner wall that is configured in the form of an inner cone. In the method for fixing the annular segment package, said package is either initially inserted into the annular housing and an annular sleeve the outer wall of which is configured in the form of an outer cone that is configured in a compatible manner to the inner cone of the annular housing, is subsequently inserted between the annular segment package and the annular housing and compressed on both sides, or is initially inserted into the annular sleeve and compressed, and the annular sleeve is subsequently inserted into the annular housing together with the annular segment package and compressed.

Abstract: Disclosed is a pressure control valve (8) for a hydraulic device, particularly a fuel supply system of a motor vehicle, comprising a valve seat (10) that is disposed between a valve member (13) and a spring element (16) for biasing the valve member (13) counter to the valve seat (10). The valve member (13) and the spring element (16) are interconnected via a traction element (14) such that the valve member (13) is reliably guided towards the valve seat (10) without using any additional guiding elements.

Abstract: The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial forces acting upon the impeller (4) of the feed pump (2). The feed pump (2) according to the invention is especially wear-free and has a very high degree of efficiency.

Abstract: The humidifying device for a fuel cell has a membrane, one side of which is exposed to cathode exhaust gas of a fuel cell for extracting water vapor from the exhaust gas. A connecting element connects the other side of the membrane to an anode or cathode gas supply to the fuel cell. In operation, water vapor permeates through the membrane and passes on through the connecting elements to humidify the gas being supplied to the fuel cell. A vacuum pump may additionally be provided to enhance the extraction of water vapor from the exhaust gas. A no metering unit allows accurate metering of the humidity of the cathode or anode gas supply.

Abstract: The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial forces acting upon the impeller (4) of the feed pump (2). The feed pump (2) according to the invention is especially wear-free and has a very high degree of efficiency.

Abstract: A fuel tank, in particular for fuel-cell systems, which can feed fuel into a system via a mechanism without a pump or the like. This is achieved by a fuel tank with a fuel cavity of variable size and a mechanism for compressing the fuel cavity. The fuel cavity is preferably bounded by a cylindrical inner wall of the fuel tank, by a circular end surface of the fuel tank and by a circular, displaceable intermediate wall. The intermediate wall is forced essentially in the direction of the fuel cavity by a spring and has a form fit with the cylindrical inner wall. A feed device and a discharge device allow incorporation in a fuel line. The system also includes a control device and a method for this fuel container, which is thus enabled to have the following operating states: A. fuel-cell system is switched on: discharge valve open, feed valve closed; B. fuel-cell system is in operation: discharge valve open, feed valve open; C. fuel-cell system is switched off: discharge valve closed, feed valve open; and D.

Abstract: An electric motor for a fuel pump wherein fuel flows through the pump, includes spring elements provided for holding magnetic shells in the stator have a face which points toward a rotor and is flush with the magnetic shells. Turbulence in the flow of the fuel within the electric motor are thereby kept particularly low. The pressure loss during the flow through the electric motor thus becomes lower. The pump according to the invention consequently has high efficiency.

Abstract: A fuel cell system which has a fuel cell is described. Also provided is a device for producing/preparing the fuel, for example hydrogen, which is connected on its outlet side to a fuel supply line and on its inlet side to a device for supplying fuel. The device for supplying fuel has a dual pump, in which a starting material for the fuel, stored in the motor-fuel tank, and water fed in via a water supply line, which is for example process water produced during the fuel cell process, are mixed to form a fuel/water mixture. This fuel/water mixture is intermediately stored in an intermediate tank before it is fed to the device for producing/preparing the fuel.

Abstract: In a feed pump designed as a side-channel pump, a blade chamber of an impeller has a contour which is formed by a radius and in which, as seen from the contour, the origin of the radius is located behind a center line of the blade chamber. A circulation flow thereby passes into the blade chamber with particularly low turbulences. The feed pump has particularly high efficiency as a result.

Abstract: A feed pump includes an impeller with two rings of guide blades delimiting blade chambers. The rings of guide blades concentrically surrounding one another and have different angular intervals between guide blades. The angular intervals between the guide blades of each ring vary within a range of values and ranges of values of each ring of guide blades is different to avoid the additions of noise emissions the feed pump consequently has noises which cause particularly little disturbance.

Abstract: A fuel tank having an inlet and an outlet is connected to a separate pressure vessel by means of a pump. Fuel vapors are pumped out of the tank and into the pressure vessel while the tank is being filled via the inlet, so that fuel vapors cannot escape during filling. After filling, the inlet is closed and the pressure in the tank is increased to about 4 bar by means of a pressure regulator in a line connecting the pressure vessel to the fuel tank. The pump is then switched off and the fuel can be delivered to the engine via the outlet under the increased fuel pressure in the tank, the pressure being reduced to fuel system pressure by a pressure regulator in the outlet line.

Abstract: A delivery unit which is provided for feeding motor-vehicle fuel has an electric motor (1) with vanes (1) arranged on the lateral surface of a rotor (4). During rotation of the rotor (4), the vanes (11) feed the fuel in a pump channel (19) between the rotor (4) and a stator (3). The delivery unit is thus constructed in a particularly compact manner and is cost-effective to produce.