Abstract: The invention regards an aroma extraction unit, comprising: —a hydration tank containing a mixture of plants or parts thereof and a liquid, said tank configured to contain a positive gas flow pressure, —a shearing unit configured for shearing the plants or parts thereof, —a hydrodynamic cavitation unit, and—at least one circulation unit, wherein the hydration tank, shearing unit, cavitation unit are in fluid communication, and the at least one circulation unit is configured for circulating the mixture from the tank into the shearing unit, further into the cavitation unit, and from the cavitation unit back into the tank and/or shearing unit.

Abstract: The invention regards an aroma extraction unit, comprising: —a hydration tank containing a mixture of plants or parts thereof and a liquid, said tank configured to contain a positive gas flow pressure, —a shearing unit configured for shearing the plants or parts thereof, —a hydrodynamic cavitation unit, and —at least one circulation unit, wherein the hydration tank, shearing unit, cavitation unit are in fluid communication, and the at least one circulation unit is configured for circulating the mixture from the tank into the shearing unit, further into the cavitation unit, and from the cavitation unit back into the tank and/or shearing unit.

Abstract: A thread clamping device for a spindle for detachably securing a thread in a clamping gap, comprising a first clamping unit with an inner casing that can be arranged coaxially to the spindle, a thread separator that can be secured in an axial direction on the inner casing, the first clamping unit being securable on an upper part of the spindle for axial positioning, and a second clamping unit having a clamping element that can be adjusted axially relative to the first clamping unit between a clamping position closing the clamping gap between the thread separator and the clamping element and an open position opening the clamping gap. The thread separator is designed to be secured on the spindle upper part for axial positioning and to be rotationally coupled to the spindle upper part, and the thread separator and the inner casing can be rotationally coupled to one another.

Abstract: The invention relates to a shaft bearing for mounting a spinning rotor of a rotor spinning machine, with a double-row rolling bearing, which comprises two rolling-body rows that roll on their inner side without an inner ring, on two inner bearing races arranged at a distance from one another on a rotor shaft, and on their outer side on outer bearing races of two separate outer rings. According to the invention, the outer rings are mounted resiliently in a shaft bearing housing so as to provide a shaft bearing for mounting a spinning rotor of a rotor spinning machine with high reliability, even at rotational speeds of more than 110,000 revolutions per minute, which shaft bearing also allows trouble-free operation of a rotor spinning machine equipped with the shaft bearing.

Abstract: The invention regards an aroma extraction unit, comprising: a hydration tank containing a mixture of plants or parts thereof and a liquid, said tank configured to contain a positive gas flow pressure, a shearing unit configured for shearing the plants or parts thereof, a hydrodynamic cavitation unit, and at least one circulation unit, wherein the hydration tank, shearing unit, cavitation unit are in fluid communication, and the at least one circulation unit is configured for circulating the mixture from the tank into the shearing unit, further into the cavitation unit, and from the cavitation unit back into the tank and/or shearing unit.

Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.

Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.

Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.

Abstract: A component is designed to work with acoustic waves. Embodiments have an improved temperature gradient of the frequency range and have increased performance strength. To this end, the component includes a stack of layers having a lower bonding layer, an electrode layer, an upper bonding layer, a compensation layer, and a trimming layer.

Abstract: A component is designed to work with acoustic waves. Embodiments have an improved temperature gradient of the frequency range and have increased performance strength. To this end, the component includes a stack of layers having a lower bonding layer, an electrode layer, an upper bonding layer, a compensation layer, and a trimming layer.

Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.

Abstract: A component includes a filter having a first structure and a second structure. The component also includes a substrate on which the first and second structures are arranged. The first structure has an approximately uniform layer thickness and an approximately uniform composition. The second structure has an approximately uniform layer thickness and an approximately uniform composition. At least one of the layer thickness or composition of the first structure differs from the layer thickness or composition of the second structure.

Abstract: A duplexer is described herein. The duplexer includes a transmission branch configured to allow passage of signals in a transmission band. The duplexer also includes a reception branch configured to allow passage of signals in a reception band. The duplexer also includes a band rejection filter in the transmission branch configured to produce a short circuit to an electrical ground in a stopband. The stopband at least partially overlaps the reception band.

Abstract: A duplexer includes an antenna terminal, a transmit filter, and a receive filter. The receive filter includes a first sub-filter that includes one or more resonators, and a second sub-filter including a double mode surface acoustic wave (DMS) filter. The second sub-filter is downstream of the first sub-filter relative to the antenna.

Abstract: A component operating with surface-proximal acoustic waves, in particular a filter with novel structure, has interdigital transducers arranged in serial and parallel branches, which are acoustically coupled with one another in different configurations. The component provides a loss-poor filter with simultaneously space-saving arrangement of the filter elements.

Abstract: A component includes a filter having a first structure and a second structure. The component also includes a substrate on which the first and second structures are arranged. The first structure has an approximately uniform layer thickness and an approximately uniform composition. The second structure has an approximately uniform layer thickness and an approximately uniform composition. At least one of the layer thickness or composition of the first structure differs from the layer thickness or composition of the second structure.

Abstract: An electro-acoustic transducer for a component operating with surface waves, in particular for a surface wave filter, in which, to suppress interfering excitation ensuing in the gap region adjacent an end of a finger, a variation of the gaps is implemented with regard to at least one feature selected from transversal arrangement, size and shape. Due to the slight dimension change of the position of the gap in comparison to the finger length, the desired primary excitation in the transducer remains approximately unchanged, however the interfering excitation is displaced or divided, and made ineffectual.

Abstract: A component operating with surface-proximal acoustic waves, in particular a filter with novel structure, has interdigital transducers arranged in serial and parallel branches, which are acoustically coupled with one another in different configurations. The component provides a loss-poor filter with simultaneously space-saving arrangement of the filter elements.

Abstract: An electro-acoustic transducer (1) is proposed for a component operating with surface waves, in particular for a surface wave filter, in which, to suppress interfering excitation ensuing in the gap region, a variation of the gaps (4) is implemented with regard to at least one feature selected from transversal arrangement, size and shape. Due to the slight dimension change (&Dgr;D) in comparison to the finger length, the desired primary excitation in the transducer remains approximately unchanged, however the interfering excitation is displaced or divided, and therewith made ineffectual.