Abstract: A circuit board for a printing cartridge, having a number of contact surfaces, wherein two or more of the contact surfaces are arranged in a first row, two or more of the contact surfaces are arranged in a second row, the first row is at a distance from the second row, and the contact surfaces of the second row are designed to apply a higher operating voltage than the contact surfaces of the first row.

Abstract: In an ultrasound cutting device comprising an ultrasound transducer connected to a generator and provided with a sound conductor which is connected to a cutting blade and extends along a line which deviates from a straight line, the generator includes means for running the ultrasound waves in a controlled manner through a predetermined frequency range.

Abstract: An explosion-proof inductive voltage transformer (IVT) of the type comprising: i) a high voltage section that receives a high voltage current, limits and insulates the high voltage current to be transformed and reduces its electrical stress; and, ii) a voltage transforming section connected to the high voltage section and contained in an insulation body in order to protect the elements of the voltage transforming section and reduce the impact of explosions in case of electrical failure, wherein the voltage transforming section comprises means for reducing the voltage of the high voltage current to a low voltage and electric transmission means that transmit a resulting low voltage current to a low voltage distribution line; wherein the voltage transforming section of the IVT further comprises shock mitigation means comprising at least one hollow section located opposite the high voltage section that, during an electrical failure causing an explosion, direct the gases and shockwave of the explosion towards the

Abstract: A rotor for a kneading machine for alimentary doughs is provided. The rotor has a flat base formed of a plurality of arms and a plurality of mixing paddles restrained to the arms. The mixing paddles are pivotally mounted on the arms about respective axes (E, F) that are parallel to the flat base. The arms are movable between a first operating position, wherein they extend from the arms along a direction (V) that is generally perpendicular to the flat base, and a second operating position, wherein they extend from the arms in opposite directions substantially parallel to the flat base. When the rotor is mounted in a kneading machine, its paddles are proximate to a bottom of the container of the machine in the second operating position, thus acting to separate the dough.

Abstract: The invention relates to a kneader machine for alimentary doughs including a container provided with a tight lid and a rotor rotatably arranged in the container about a vertical rotation axis (A), wherein the rotor has a flat base consisting of a plurality of arms and a plurality of mixing paddles which extend from the arms in a vertical direction (V), and wherein the arms of the rotor have beveled surfaces formed along their peripheries on the sides intended to face a rotation direction of rotation (R) of the rotor. The mixing paddles have first and second mixing paddles configured so as to generate between them a whirling motion of the particles of the solid ingredients on a plane (P) passing through the rotation axis (A) of the rotor and perpendicular to its base. The invention also relates to a method of making an alimentary dough by using the kneader machine.

Abstract: An apparatus for ultrasound screening with a screen frame a screen fabric arranged in the screen frame with at least one ultrasound converter for producing ultrasonic vibrations. Ultrasonic vibrations may be introduced into the screen fabric via sound-conducting connection with the ultrasound converter, and the location of the screen fabric at which the introduction of the ultrasonic vibrations into the screen fabric may be varied.

Abstract: An apparatus for ultrasound screening with a screen frame a screen fabric arranged in the screen frame with at least one ultrasound converter for producing ultrasonic vibrations, and with at least one means for introducing ultrasonic vibrations into the screen fabric. The means for introducing ultrasonic vibrations into the screen fabric is in sound-conducting connection with the ultrasound converter wherein at least one of the means for introducing ultrasonic vibrations into the screen fabric is movably arranged in such a way that the location of the screen fabric at which the introduction of the ultrasonic vibrations into the screen fabric is effected by the means for introducing the ultrasonic vibrations into the screen fabric can be varied by movement of the means for introducing the ultrasonic vibrations into the screen fabric relative to the screen fabric and to a method for ultrasound screening in which an apparatus operates as disclosed.

Abstract: The present invention relates to an electric coupler for high-voltage DIN C type cells comprising a voltage divider, a condenser and two terminal contacts and wherein the condenser is elongated and its ends are in contact with the two terminals of the coupling device, occupying an axis parallel to the imaginary central axis of the connector passing through the two contacts and wherein the resistances of the divider are aligned and parallel to the mentioned axis of the zig-zag device. As a result of this arrangement the insulation can be assured and the field distributions of both systems are compatible with one another and with those of the DIN C connector.

Abstract: The present invention relates to a resistive voltage divider comprising a plurality n of resistive elements in a configuration wherein the angles m=n?1 between each pair of elements are between 180° and 10°, characterized in that the group of elements is supported by a dielectric the shape of which is such that it allows the creepage distance of the divider to be equal to or longer than the sum of creepage distances of the individual resistances. This arrangement allows a correct insulation of the device because it maintains the outer insulation since in the event of short-circuit the current will flow through the resistances and not through the support.

Abstract: In an ultrasound cutting device comprising an ultrasound transducer connected to a generator and provided with a sound conductor which is connected to a cutting blade and extends along a line which deviates from a straight line, the generator includes means for running the ultrasound waves in a controlled manner through a predetermined frequency range.

Abstract: The invention is a method and apparatus for ultrasound excitation of structures of any geometry. The invention comprises production of a connection between a generator, an ultrasound converter, and at least one mechanical system to be excited, passing through a frequency range for determining an operating point, wherein at each approached frequency the power consumption of the system to be excited determines a current, and/or a voltage emitted by the generator, which is measured using a sensor such that a measurement value of the sensor renders the power output to the system to be excited, and performing an ultrasound excitation at the determined operating point or its immediate surroundings. The device further comprises a memory for storing target values for the power supplied to the total system input, and of parameter values for voltage, current, and frequency, in which the desired target values or ranges are achieved.

Abstract: The invention is a method and system for screening materials with a tube-shaped screen. The tube that has at least one section with a plurality of screen openings, which are placed in the wall of the tube, and that form a screen frame which defines at least the length and the cross section of the tube, and a screen mesh, that is tensioned on the screen frame, to form at least a part of the wall of the tube-shaped screen. The system further includes at least one ultrasonic converter and at least one feed-line sound conductor placed between the ultrasonic converter and the tube, with the tube being configured, to be subjected to ultrasonic excitation so that the amplitude of the ultrasonic excitation transferred to the tube has a component in a direction perpendicular to, and a component in a direction parallel to, the central axis of the screen.

Abstract: Support device for slidable shafts or rods of table soccer games, including a frame in which a seat is formed for the passage of a rod slidable along its axis, and at least one pulley or wheel, provided with race and rim, respectively, and rotatably associated with the frame so that the race or rim defines a portion of the seat, the remaining seat portion being closed by the frame.

Abstract: This invention relates to a device for retrofitting a printer which has a cartridge receiving device for holding interchangeable consumable material cartridges. In order to reduce the cost of production, transport and storage, the device has an insert which has fastening means for attachment in the cartridge receiving device of a printer, on the insert a locking means being made which blocks the fastening means in the fastening position when a consumable material insert cartridge is connected in the cartridge receiving device.

Abstract: This invention relates to an ink cartridge which has at least one ink container which has an ink outlet with an ink outlet opening which extends from the inside to the outside, in the ink outlet opening a differential pressure valve is mounted which includes a valve seat and a valve body which can move relative to it, the valve seat has a continuous valve opening which has a peripheral sealing surface outside, a spring means is attached between the movable valve body and the stationary ink outlet, the valve body is pressed by the spring means with a predetermined closing force to form a seal from the outside against the sealing surface of the valve seat, and can be moved against the closing force to the outside from the sealing surface. In order to form an ink cartridge with a differential pressure valve which works more reliably, the invention proposes that the valve seat be made deformable so that the sealing surface can be moved relative to the ink outlet opening.

Abstract: The present invention provides a composition for water-removable ink with an effect of coupling retardation by using an aliphatic alcohol as a solvent, which is selected from a group comprising n-butyl alcohol, n-propyl alcohol, isopropyl alcohol and pentanol, so that the curiosity of infants or juveniles can be stimulated to enhance the learning effect and also various desires of students or adults can be satisfied in terms of ornamental purposes.

Abstract: This invention relates to a process for cleaning an inkjet printing head which has nozzle openings and ink channels which lead to them, in which electrical drive elements for ejecting ink out of the nozzle openings are located, in which the nozzle openings and the ink channels are forcibly flushed with cleaning liquid. To achieve improved cleaning action more gently and less expensively, the drive elements are triggered in an oscillating manner during the forced flushing with cleaning liquid. A cleaning device for carrying out this process is also disclosed.

Abstract: The invention discloses an impact shears having a rotor with individual chopping blades disposed on the rotor in a predetermined arrangement and with blade(s) or blade system that is generally stationary vis-à-vis the rotation of the rotor. The blade is held in a blade holder on the stator side of the rotor. The blade holder is movable on the stator about an axis parallel to the rotational axis of the rotor and carries at least two blades, or blade systems, that are expediently disposed at the same angular distance to one another. The blade holder can be rotated about an axis that extends parallel to the rotational axis of the rotor so that every blade of the blade holder can be brought in a cutting position to interact with the chopping blades of the rotor and can be locked in position with respect to the chopping blades.

Abstract: The invention pertains to a configuration for forming a ventilation aperture having a small cross section, whereby a sealing part is placed in a passageway and the ventilation aperture is formed between the sealing part and the inner wall of the passageway. In order to simplify manufacturing and, in particular, make possible the use of injection-molded plastic parts throughout, the invention suggests that the sealing part should have a cylindrical stopper that is made of an elastically deformable material and can be inserted into the passageway, and has in its surface shell at least one axially continuous, channel-like depression, the outside diameter of which, when in the unstressed state, is oversized in comparison with the inside diameter of the passageway.

Abstract: This invention relates to a pierceable sealing element for a liquid outlet, especially an ink outlet opening of an ink reservoir in inkjet printing means, and an ink reservoir with one such sealing element which has a membrane which can be pierced by a hollow needle for removing liquid, and the hollow needle can be surrounded sealed from the outside by the pierced seal element. To form an improved seal with low production and installation cost it is proposed as claimed in the invention that the membrane is surrounded by an annularly peripheral sealing profile which can be twisted in the manner of a torus at least partially around a peripheral line when the membrane has been pierced, a sealing surface which runs radially on the inside being formed.