Abstract: A control device (10, 20), for actuating an electrochemical gas generator cell (11), is configured to output a first control signal (Igen), which brings about the generation of an electrical operating voltage at the electrochemical gas generator cell (11), for an operating phase of the electrochemical gas generator cell (11). The electrical operating voltage is at least equal to an electrolysis voltage (Uele) of the electrochemical gas generator cell (11). The control device (10, 20) is further configured to output a second control signal (IRuhe, Upre), which brings about the generation of an electrical bias voltage (Upre) at the electrochemical gas generator cell (11), for a rest phase of the electrochemical gas generator cell (11). The electrical bias voltage (Upre) is lower than the electrolysis voltage (Uele). Further aspects pertain to systems (40a) and processes (50, 60, 70) for operating electrochemical gas generator cells (110).

Abstract: A control device (10, 20), for actuating an electrochemical gas generator cell (11), is configured to output a first control signal (Igen), which brings about the generation of an electrical operating voltage at the electrochemical gas generator cell (11), for an operating phase of the electrochemical gas generator cell (11). The electrical operating voltage is at least equal to an electrolysis voltage (Uele) of the electrochemical gas generator cell (11). The control device (10, 20) is further configured to output a second control signal (IRuhe, Upre), which brings about the generation of an electrical bias voltage (Upre) at the electrochemical gas generator cell (11), for a rest phase of the electrochemical gas generator cell (11). The electrical bias voltage (Upre) is lower than the electrolysis voltage (Uele). Further aspects pertain to systems (40a) and processes (50, 60, 70) for operating electrochemical gas generator cells (110).

Abstract: An optical gas sensor with a light-emitting diode (2), a photosensor (8), a measuring section between the light-emitting diode and the photosensor, and a control and analyzing unit (16), which is set up to determine the concentration of a gas in the measuring section from the light intensity measurement by the photosensor. The control and analyzing unit (16) is set up to measure the forward diode voltage over the light-emitting diode at a constant current, to determine the temperature of the light-emitting diode from the detected forward diode voltage over the light-emitting diode by means of a preset temperature dependence of the forward diode voltage, and to apply a correction function as a function of the light-emitting diode temperature determined, with which the measurement is converted to that of a preset temperature of the light-emitting diode.

Abstract: An optical gas sensor with a light-emitting diode (2), a photosensor (8), a measuring section between the light-emitting diode and the photosensor, and a control and analyzing unit (16), which is set up to determine the concentration of a gas in the measuring section from the light intensity measurement by the photosensor. The control and analyzing unit (16) is set up to measure the forward diode voltage over the light-emitting diode at a constant current, to determine the temperature of the light-emitting diode from the detected forward diode voltage over the light-emitting diode by means of a preset temperature dependence of the forward diode voltage, and to apply a correction function as a function of the light-emitting diode temperature determined, with which the measurement is converted to that of a preset temperature of the light-emitting diode.

Abstract: An extruder device includes an extruder worm and a worm drive that has a drive motor, which is provided with a rotor. The rotor is connected to the extruder worm during operation in such a way that the rotor and extruder worm rotate at the same speed during operation. The rotor can be connected to detachable torque-transmitting elements which transmit torque between the rotor and the extruder worm and which can be detached when refitting occurs. The detachable torque-transmitting elements include a torque-transmission point at which torque is transmitted from a bushing to a connecting section which is at least partially encompassed by the bushing. The torque-transmission point in an axial direction is located outside the rotor.

Abstract: A patient care unit (1) with a bed for accommodating a patient makes possible undisturbed accessibility to the patient by avoiding cable connections between sensors at the patient and the measuring instruments or treating devices (2) belonging to them. The patient care unit (1) has a receiving unit for receiving sensor signals of the patient, transmission features for passing on the sensor signals to a transmitting unit in the patient care unit (1) or to a cable connection (4) for connecting the patient care unit (1) to the power supply, so that the sensor signals enter measuring instruments or treating devices (2) that belong to them for the evaluation of the sensor signals in a wireless manner or via the power supply.

Abstract: A modular system and process for obtaining measured data and forwarding them in a radio-based manner is based on a plurality of modules. The modules contain at least one device (31) for obtaining measured data, a device (32) for transmitting the measured data by radio, a device (33) for receiving data sent by other units, as well as device (34) for generating a transmissible code containing additional data, wherein the device (32) for transmitting the measured data and the device (33) for receiving data sent by other units together function as a repeater (35).

Abstract: The invention relates to novel ?1-pyrrolines of the formula (I) in which R1, R2, R3, R4, A1, A2, R5, R6, R7, R8, R9 and Q are as defined in the disclosure, to a process for preparing these compounds and to their use for controlling pests.

Abstract: The invention relates to an extruder device comprising an extruder worm (4) and a worm drive (1,2) comprising a drive motor (1), which is provided with a rotor (8). The rotor (8) is connected to the extruder worm (4) during operation in such a way that the rotor (8) and extruder worm (4) rotate at the same speed during operation. The rotor can be connected to detachable torque-transmitting elements (6, 14, 15) which transmit torque between the rotor (8) and the extruder worm (4) and which can be detached when refitting occurs. The detachable torque-transmitting elements (6, 14, 15) include a torque-transmission point at which torque is transmitted from one bushing (14) to a connecting section which is at least partially encompassed by the bushing (14). The torque-transmission point in an axial direction is located outside the rotor (8).

Abstract: A device for guiding a person along a traveled path enables the wearer of the device to be guided back along the traveled path in an electronically supported manner even under conditions under which orientation is difficult. The device has a portable ejection means (2), in which a container (14) for accommodating a plurality of transponders (7) and an ejection mechanism (10), which is actuated by a control device (6) to eject a transponder (7) from the container (14), are present. A control unit (6) is prepared such as to actuate the ejection mechanism (10) at predetermined time intervals or at predetermined distances in space. A portable transmitter/receiver device (8) is designed to detect at least one of the transponders (7) dropped off and to generate a signal representative of the direction in which that transponder (7) is located. A portable display device (4) receives the direction signal of the transmitter/receiver means (8) and offers the wearer a visual and/or acoustic display of the direction.

Abstract: A modular system and process for obtaining measured data and forwarding them in a radio-based manner is based on a plurality of modules. The modules contain at least one device (31) for obtaining measured data, a device (32) for transmitting the measured data by radio, a device (33) for receiving data sent by other units, as well as device (34) for generating a transmissible code containing additional data, wherein the device (32) for transmitting the measured data and the device (33) for receiving data sent by other units together function as a repeater (35).

Abstract: The invention relates to novel ?1-pyrrolines of the formula (I) in which R1, R2, R3, R4, A1, A2, R5, R6, R7, R8, R9 and Q are as defined in the disclosure, to a process for preparing these compounds and to their use for controlling pests.

Abstract: A device for guiding a person along a traveled path enables the wearer of the device to be guided back along the traveled path in an electronically supported manner even under conditions under which orientation is difficult. The device has a portable ejection means (2), in which a container (14) for accommodating a plurality of transponders (7) and an ejection mechanism (10), which is actuated by a control device (6) to eject a transponder (7) from the container (14), are present. A control unit (6) is prepared such as to actuate the ejection mechanism (10) at predetermined time intervals or at predetermined distances in space. A portable transmitter/receiver device (8) is designed to detect at least one of the transponders (7) dropped off and to generate a signal representative of the direction in which that transponder (7) is located. A portable display device (4) receives the direction signal of the transmitter/receiver means (8) and offers the wearer a visual and/or acoustic display of the direction.

Abstract: A patient care unit (1) with a bed for accommodating a patient makes possible undisturbed accessibility to the patient by avoiding cable connections between sensors at the patient and the measuring instruments or treating devices (2) belonging to them. The patient care unit (1) has a receiving unit for receiving sensor signals of the patient, transmission features for passing on the sensor signals to a transmitting unit in the patient care unit (1) or to a cable connection (4) for connecting the patient care unit (1) to the power supply, so that the sensor signals enter measuring instruments or treating devices (2) that belong to them for the evaluation of the sensor signals in a wireless manner or via the power supply.

Abstract: A digital electrochemical sensor is provided with a sensor electrode array (1-4) and an operating electronic unit integrated on a chip for processing electrical signals received therefrom. The operating electronic unit includes a potentiostat circuit and a microprocessor, which receives and further processes the signals processed by the operating electronic unit. To provide an electrochemical sensor which can be operated more simply and with higher precision during installation and in operation the potentiostat circuit is a digital circuit, whose controller function is controlled by the microprocessor (20), and for the microprocessor (20) to be also integrated on the chip of the operating electronic unit.

Abstract: An extruder die head comprises an internal cylindrical mandrel and a shell, which encloses said mandrel concentrically. Between said mandrel and shell an annular channel is formed that empties into the die slit. A polymer melt is fed through a line to the annular channel. To prevent the polymer melt in the area of the start of the annular channel from penetrating into a slit that forms between the mandrel and the shell due to heat expansion, there is between both mandrel and shell a ring with such a coefficient of thermal expansion that when heated up due to the polymer melt said ring seals the slit between the shell and the mandrel.

Abstract: An extruder die head, preferably a blown film head, has an internal cylindrical mandrel and a cylindrical jacket, which envelops concentrically the mandrel. Between the mandrel and jacket an annular channel is formed that empties into a die slit. At least one melt-supplying line empties into the annular channel in the area opposite the die slit. To avoid slits between the central mandrel and the jacket, enveloping the mandrel, where the polymer melt can accumulate and deposit, the mandrel is made as one piece with a flange-like foot and is provided in the area, adjacent to the foot, with at least one borehole, which feeds in the melt. On the mandrel adjacent to the foot is shrunk a ring, which seals the slit between both the mandrel and jacket. The cylindrical jacket is mounted above and connected sealingly to the shrunk-on ring to form the annular channel.

Abstract: A digital electrochemical sensor is provided with a sensor electrode array (1-4) and an operating electronic unit integrated on a chip for processing electrical signals received therefrom. The operating electronic unit includes a potentiostat circuit and a microprocessor, which receives and further processes the signals processed by the operating electronic unit. To provide an electrochemical sensor which can be operated more simply and with higher precision during installation and in operation the potentiostat circuit is a digital circuit, whose controller function is controlled by the microprocessor (20), and for the microprocessor (20) to be also integrated on the chip of the operating electronic unit.

Abstract: An extruder die head, preferably a blown film head, comprises an internal cylindrical mandrel and a jacket, which envelops concentrically said mandrel. Between said mandrel and jacket an annular channel is formed that empties into a die slit. At least one melt-supplying line empties into the annular channel in the area opposite the die slit. To avoid slits between the central mandrel and the jacket, enveloping said mandrel, where the polymer melt can accumulate and deposit, the mandrel is made as one piece with a flange-like foot and is provided in its area, adjacent to the foot, with at least one borehole, which feeds in the melt. On the mandrel adjacent to the foot is shrunk a ring, which seals the slit between both. On the ring is mounted a cylindrical jacket and is connected sealingly to said jacket, which envelops the mandrel, forming an annular channel.

Abstract: A procedure for feeding plastic granulate into the intake opening of a plastic extruder with a storage tank, and with an intermediate storage tank resting on a weighing device.