Abstract: A honeycomb body for exhaust gas aftertreatment includes a plurality of interconnected metal foils stacked on one another. The honeycomb body has a central first flow channel running in the axial direction of the honeycomb body, as an inflow section, and has a plurality of second flow channels between in each case two mutually adjacent metal foils. The first flow channel is in fluid communication with the second flow channels. The second flow channels formed between two mutually adjacent metal foils run in a straight line and parallel to one another along a radial direction of the honeycomb body.

Abstract: Filter cartridges and methods of use with manifolds of appliances. The filter cartridges can includes components, such as handles, levers, cams, rotatable nuts, actuators, pins, and springs, to assist in removing the filter cartridge from the manifold. Some embodiments of the filter cartridges can include a neck having a non-uniform diameter over a longitudinal length. Other embodiments of the filter cartridges can include a recess that receives a portion of the manifold and the recess can have at least one seal. One embodiment of the invention provides an adapter for use between a manifold and a filter.

Abstract: A cartridge for a water treatment system, effective to assist in the removal of contaminants by photocatalytic oxidation and by adsorption, includes a plurality of stacked disks, preferably made of a UV light transmissive material, which disks define circuitous flow paths for water being treated. In a preferred embodiment, the disk surfaces contacted by the water are provided with a coating of a catalyst, such as TiO2, activated by a UV light source positioned in the center of the cartridge.

Abstract: A capacitive amplifier and tone generator detect and amplify an electrical tone conducted by one of a group of wires or a pair of wires in order to identify and trace a particular wire or pair of wires. The capacitive amplifier has a probe for being placed adjacent a wire under test, an input terminal coupled to the conductive probe for receiving an input signal therefrom, a suppression unit coupled to the input terminal for receiving the input signal and for suppressing the noise signals, and an amplifier coupled to the suppression unit to amplify the noiseless output signal. The suppression unit can include an analog/digital converter, a digital/analog converter, a CPU and a memory for suppressing noise frequencies contained in the digital signal values by subtracting from the input signal a time-delayed signal wherein a time-delay period corresponds to a period of the unwanted noise frequency.

Abstract: The apparatus fitted in a hand-portable test unit has means (1) for generating an electrical signal by modulating a relatively higher-frequency signal with a relatively low-frequency audio signal and means for injecting the signal into one end of a line. Superimposing the higher-frequency carrier frequency on the low-frequency audio frequency makes it possible to design the output capacitors (3.1, 3.2, 3.3, 3.4) to have a smaller capacitance, with the result that the dielectric strength of the device can be increased.

Abstract: An xDSL, particularly ADSL, line tester has a sine wave generator (2) for generating specified polling frequency signals, particularly “R tones”, which can be put onto the connected ADSL line using an output transformer (4). The response signal from an exchange in the form of a “specified C tone” is filtered in a high pass filter (5) and is integrated in an integrator (7) and is supplied to a central processor unit (1) which prompts a light emitting diode (12) to light up if the detected signal meets the requirements. The central processor unit (1) has stored values for the specified shape and duration of the R tone. The ADSL line tester can thus be used to check connection setup on a purely physical level without the use of software and the like.

Abstract: The xDSL, particularly ADSL, line tester has a sine wave generator (2) for generating specified polling frequency signals, particularly “R tones”, which can be put onto the connected ADSL line using an output transformer (4). The response signal from an exchange in the form of a “specified C tone” is filtered in a high pass filter (5) and is integrated in an integrator (7) and is supplied to a central processor unit (1) which prompts a light emitting diode (12) to light up if the detected signal meets the requirements. The central processor unit (1) has stored values for the specified shape and duration of the R tone. The ADSL line tester can thus be used to check connection setup on a purely physical level without the use of software and the like.

Abstract: A capacitive amplifier is described for detecting and amplifying an electrical tone conducted by one of a group of wires or a pair of wires in order to identify and trace a particular wire or pair of wires. The capacitive amplifier comprises a probe for being placed adjacent a wire under test, an input terminal coupled to the conductive probe for receiving an input signal therefore, a suppression unit coupled to the input terminal for receiving the input signal and for suppressing the noise signals, and an amplifier coupled to the suppression unit to amplify the noiseless output signal. The suppression unit can be composed of an analog/digital converter, a digital/analog converter, a CPU and a memory for suppressing noise frequencies contained in the digital signal values by subtracting from the input signal a time-delayed signal wherein the time-delay period corresponds to the period of the unwanted noise frequency.