Abstract: In order to allow or improve a laminar air flow in a transition region between aerodynamic profile elements, a pressure plate arrangement is proposed. The pressure plate arrangement comprises a pressure plate body and at least one cover strip, in particular a sealing strip. The pressure plate body has an outlet region from which free-flowing sealant can exit during pressing. The cover strip already contains cured sealant and presses the free-flowing sealant flat in order to be able to form the transition region.

Abstract: The invention relates to a compressor arrangement for compressing a gas. The compressor arrangement comprises a drive unit with a driveshaft that can be driven in rotation and at least one compressor which comprises a compressor casing, at least one gas inlet opening formed in the compressor casing and at least one gas outlet opening formed in the compressor casing and fluidically connected to the at least one gas inlet opening. The compressor also has at least one impeller, which is arranged in the compressor casing, is connected in fixed rotation with the driveshaft and can be driven in rotation, for delivering the gas from the at least one gas inlet opening to the at least one gas outlet opening, and has at least one bearing device for bearing the at least one impeller, wherein the at least one bearing device is arranged on the compressor casing and on the at least one impeller.

Abstract: With the machine, workpieces are machined as they pass through the machine. At least one of the spindles of the machine is coupled with an adjusting unit with which the spindle, for producing a contour on the workpiece, can be adjusted transverse to the throughfeed direction of the workpiece during workpiece throughfeed. The adjustment of the adjusting unit is realized as a function of the advancing speed of the workpiece and/or the workpiece position upon throughfeed of the workpiece. The adjusting unit has such a stiffness and/or low clearance and/or positioning precision that the end products machined from the workpieces after exiting from the machine can be used without further post-machining. The end products have such a geometry precision and surface quality that further post-machining is no longer required.

Abstract: A roof bar for a motor vehicle, includes a support structure for a roof bar element with an fastening claw which engages at a first end on a side wall rail of a vehicle body and is connected in an articulated fashion to a clamping lever. The fastening claw is guided in a guide in the support structure and a leaf spring is provided which, on one side, engages on the clamping lever-in the region of its free end and, on the other side, is supported on the support structure, wherein when the clamping lever is pressed down towards the attachment claw the-fastening claw is clamped on the side wall rail by the spring force.

Abstract: A roof bar for a motor vehicle, includes a support structure for a roof bar element with an fastening claw which engages at a first end on a side wall rail of a vehicle body and is connected in an articulated fashion to a clamping lever. The fastening claw is guided in a guide in the support structure and a leaf spring is provided which, on one side, engages on the clamping lever-in the region of its free end and, on the other side, is supported on the support structure, wherein when the clamping lever is pressed down towards the attachment claw the-fastening claw is clamped on the side wall rail by the spring force.

Abstract: A surge arrestor includes at least one arrestor element, and a disconnecting device for disconnecting the arrestor element from the grid. The disconnecting device includes a thermal disconnect point that is incorporated into the electrical connection path within the arrestor. A moving conductor section or a moving conductive bridge is connected to the arrestor element by way of the disconnect point. A conducting element is disposed in or at the end of the path of motion of the conductor section or of the bridge, the conducting element coming into contact with the conductor section or the bridge when the disconnecting device is triggered. A moving insulation part penetrates into the path of motion of the conductor section or of the bridge directly prior to or upon reaching a short circuit state.

Abstract: A volume control in a hearing aid which has a signal path from a microphone to a receiver and which provides amplification of the signal delivered to the receiver, the volume control including first and second user input elements to allow the user to change the amplification in a downward and an upward direction, whereby use of the first and second user input elements has different impact on the size of the amplification change effected.

Abstract: The invention relates to a surge arrestor comprising at least one arrestor element, for example a varistor, and a disconnecting device for disconnecting the arrestor element or elements from the grid, wherein the disconnecting device comprises a thermal disconnect point that is incorporated into the electrical connection path within the arrestor, wherein a moving conductor section or a moving conductive bridge is connected to the arrestor element by way of the disconnect point on one side and the conductor section or the bridge is connected to a first external electrical connection of the arrestor on the other side, and comprises a means for generating a pre-stressing force, such as a spring, wherein the force vector associated therewith acts on the conductor section or the bridge in the disconnect direction directly or indirectly by way of a moving disconnection bracket, wherein further a conducting element is disposed in or at the end of the path of motion of the conductor section or of the bridge, said con

Abstract: A process for preparing racemic alkyl-5-halopent-4-enecarboxylic acids and esters thereof of the formula (I), in which R is a C1-C6-alkyl radical, R1 is H or C1-4-alkyl and X is chlorine, bromine or iodine, which comprises a) reacting a dialkyl alkylmalonate of the formula (II),in which R is as defined above and R2 is a C1-C4-alkyl radical, in the presence of a metal alkoxide of the formula MOR3, in which M may be Na, K or Li, and R3 is a C1-C4-alkyl radical, and in an organic solvent, with 1,3-dihalopropene to give the corresponding allylated malonate, then b) after full conversion, adding an inorganic salt and a C1-C6 alcohol to the reaction mixture, heating the reaction mixture to reflux temperature, then c) isolating the desired racemic ester of the formula (I) from the reaction mixture by extraction or direct distillation and d) if the racemic acid is the desired end product, hydrolyzing the ester function.

Abstract: A process for preparing racemic alkyl-5-halopent-4-enecarboxylic acids and esters thereof of the formula (I), in which R is a C1-C6-alkyl radical, R1 is H or C1-4-alkyl and X is chlorine, bromine or iodine, which comprises a) reacting a dialkyl alkylmalonate of the formula (II),in which R is as defined above and R2 is a C1-C4-alkyl radical, in the presence of a metal alkoxide of the formula MOR3, in which M may be Na, K or Li, and R3 is a C1-C4-alkyl radical, and in an organic solvent, with 1,3-dihalopropene to give the corresponding allylated malonate, then b) after full conversion, adding an inorganic salt and a C1-C6 alcohol to the reaction mixture, heating the reaction mixture to reflux temperature, then c) isolating the desired racemic ester of the formula (I) from the reaction mixture by extraction or direct distillation and d) if the racemic acid is the desired end product, hydrolyzing the ester function.

Abstract: A method for Integration of a packet-oriented network in a communication system has at least one central communication device embodied with an application interface for exchange of communication data with a computer system, with a number of communication control processors assigned to the packet-oriented network for implementation of decentralized signaling and user data services, with a gateway for bilateral exchange of signaling and user data of the central communication device and of data exchanged by the decentralized signaling and user data services. In a control processor in this case communication data of the application interface and status information that can be processed for the communication control processors is bilaterally exchanged.

Abstract: The invention concerns a volume control in a hearing aid, which has a signal path from a microphone to a receiver, and where the signal path is adapted to provide an amplification of the signal delivered to the receiver, where a first and a second user input means is provided to allow the user to change the amplification in a downward and an upward direction whereby use of the first and second user input means has different impact on the size of the amplification change effected.

Abstract: The invention regards a listening device with two or more microphone units. The listening device has a signal processing device and means for delivering a signal to the user of the device representative of the audio signals picked up by the microphones, whereby the signal processing device comprises means for adding and scaling the signals from at least two microphone units to provide a single added signal in a manner which allows signal parts from different directions to be equally represented in the resulting added signal.

Abstract: The invention comprises a microphone with a housing and an active element inside the housing for converting sound energy into electric energy whereby an inlet is provided for directing sound energy from the surroundings to the active element, whereby the inlet comprises a first tube part and a cavity in connection with the first tube part, whereby the cavity is dimensioned to dampen ultrasonic frequencies. The invention further comprises a hearing aid with a microphone such a microphone. Further the invention concerns an inlet structure for a microphone.

Abstract: The invention comprises a hearing aid, which has a casing containing a signal receiving part for receiving an audio signal, an audio transducer for providing an audio signal to the user, a signal transmission path between the signal receiving part and the audio transducer, whereby a battery is provided for powering the signal receiving part, the signal path and the audio transducer, and where further means are provided for assessing the function of the hearing aid and for generating an electrical indication signal which indicates the function of the hearing aid and where further means are provided for intermittently generating a power signal in response to the electrical indication signal and where means are provided for converting the power signal into a light signal, such that the light signal is visible from outside the hearing aid.

Abstract: The invention concerns a volume control in a hearing aid, which has a signal path from a microphone to a receiver, and where the signal path is adapted to provide an amplification of the signal delivered to the receiver, where a first and a second user input means is provided to allow the user to change the amplification in a downward and an upward direction whereby use of the first and second user input means has different impact on the size of the amplification change effected.

Abstract: A process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, in which allyl isothiocyanate of formula CH2═CH—CH2—NCS is reacted at from −40° C. to +30° C., in a solvent that is inert under the reaction conditions, with from 1 to 2 mol of a chlorinating agent per mol of allyl isothiocyanate; to the reaction mixture so obtained there is added, at a reaction temperature of from 0° C. to the boiling temperature of the solvent used, from 1 to 5 mol of oxidising agent per mol of allyl isothiocyanate, and then 2-chloro-5-chloromethyl-1,3-thiazole is isolated from the reaction mixture and is optionally converted by crystallisation into high-purity 2-chloro-5-chloromethyl-1,3-thiazole.

Abstract: A method for Integration of a packet-oriented network in a communication system has at least one central communication device embodied with an application interface for exchange of communication data with a computer system, with a number of communication control processors assigned to the packet-oriented network for implementation of decentralized signaling and user data services, with a gateway for bilateral exchange of signaling and user data of the central communication device and of data exchanged by the decentralized signaling and user data services. In a control processor in this case communication data of the application interface and status information that can be processed for the communication control processors is bilaterally exchanged.

Abstract: A process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, in which allyl isothiocyanate of formula CH2═CH—CH2-NCS is reacted at from −40° C. to +30° C., in a solvent that is inert under the reaction conditions, with from 1 to 2 mol of a chlorinating agent per mol of allyl isothiocyanate; to the reaction mixture so obtained there is added, at a reaction temperature of from 0° C. to the boiling temperature of the solvent used, from 1 to 5 mol of oxidising agent per mol of allyl isothiocyanate, and then 2-chloro-5-chloromethyl-1,3-thiazole is isolated from the reaction mixture and is optionally converted by crystallisation into high-purity 2-chloro-5-chloromethyl-1,3-thiazole.

Abstract: Process for preparing glyoxylic esters or their hydrates in which a water-soluble salt of a maleic or fumaric monoester or a mixture thereof is reacted with ozone in aqueous solution at temperatures of from 0 to 50.degree. C., and the corresponding glyoxylic ester or its hydrate is isolated from the resulting reaction mixture.