Abstract: An ultrasonic sonotrode (10) is disclosed, comprising a base body (1) with a coupling surface (3) for coupling ultrasonic vibrations and a processing pin (2) extending along a longitudinal axis (L) with a working surface (4) for emitting the ultrasonic vibrations to a component (21), in particular a welding surface (4) for welding the component (21). The processing pin (2) is connected to the base body (1) by material bonding and/or force fitting. Also disclosed is a method of manufacturing such an ultrasonic sonotrode (10). The method includes a step in which the processing pin (2) is connected to the base body (1) by material bonding and/or force fitting. Also disclosed is a method of welding at least two components (21) by means of the ultrasonic sonotrode (10).

Abstract: The invention relates to a device for monitoring the physical fitness using a pulse watch part (1) for detecting heart pulse rate data and an evaluation apparatus for providing fitness information which can be displayed by means of a display device and for whose derivation a processing unit (16) is present which is designed for reading in and including personal supplementary data. The accuracy of the fitness information made available is favoured by the fact that the personal supplementary data comprises physiological additional data, for whose detection additional equipment with an additional measuring apparatus (2) is provided, which can be connected, in terms of data transfer, to the pulse watch part (1) directly or indirectly for the automatic transmission of the physiological additional data and/or heart pulse rate data.

Abstract: The invention is directed to a filter bag (10) consisting of filter paper for producing brewed beverages such as coffee or tea, comprising a holding space (17) for holding a substance, such as coffee grinds or tea leaves, and being made up of a folded filter sheet blank (1) having two filter sheet sides (11, 12). The filter sheet sides (11, 12) are of essentially identical shape and size, having one bottom edge (13) and two side edges (22, 24 and 23, 25). The side edges (22, 24; 23, 25) diverge upwards and include at their upper ends top edges (14, 15) for forming a filling opening (30), with the bottom edge (13) and the side edges (22, 24; 23, 25) of the two filter sheet sides (11, 12) being either connected with each other in a positive engagement relationship, in which case they form bottom and/or side strips (37 and/or 28, 29) in this area, or connected with each other in one integral piece in these areas, in order to form a filter bag (10).