Abstract: The invention relates to an electric tooth cleaning device and to a method for automatically indicating the cleaning duration when cleaning teeth, whereby a timer signal is emitted using a time element after the termination of a set cleaning duration in a tooth cleaning session. According to the invention, the set cleaning duration, whose termination prompts the emission of a timer signal, is modified. An actual cleaning duration in the tooth cleaning session is registered by a time registration device. The deviation of the actual cleaning duration from a predetermined standard cleaning duration is determined by means of an evaluation device. The set cleaning duration of a subsequent tooth cleaning session is then defined depending on the deviation that has been determined.

Abstract: The invention relates to an electric tooth cleaning device and to a method for automatically indicating the cleaning duration when cleaning teeth, whereby a timer signal is emitted using a time element after the termination of a set cleaning duration in a tooth cleaning session. According to the invention, the set cleaning duration, whose termination prompts the emission of a timer signal, is modified. An actual cleaning duration in the tooth cleaning session is registered by a time registration device. The deviation of the actual cleaning duration from a predetermined standard cleaning duration is determined by means of an evaluation device. The set cleaning duration of a subsequent tooth cleaning session is then defined depending on the deviation that has been determined.

Abstract: The invention is directed to an electric toothbrush having a brush section and a drive shaft received in the brush section. The brush section includes a first bristle supporting structure operatively coupled to the shaft for motion about an axis essentially perpendicular to a longitudinal axis of the shaft, and a second bristle supporting structure operatively coupled to the shaft for substantially transverse oscillating motion of the entire second bristle supporting structure relative to the longitudinal axis of the shaft. The first bristle supporting structure is generally cylindrically shaped and carries a plurality of bristle clusters.

Abstract: The invention is directed to an interproximal brush for an electric toothbrush which is coupled to the shaft driving the bristle supporting structure in an alternating motion in a manner independent of the coupling of the bristle supporting structure to the shaft. The interproximal brush performs a pivotal motion enabling additional cleaning in particular of interproximal spaces.

Abstract: A current-pressure transducer, in particular for a vacuum control in automotive vehicles, is developed with a chamber (11) which is provided with a connection (18) for supply vacuum, with a connection (19) for removal of control pressure, with an air inlet for outside pressure and with a membrane (12) as chamber wall. The membrane can be displaced by a plunger-type armature (5) of a plunger-type armature electromagnet (1-7). With the membrane there is controlled a double valve (13-17) which, depending on the position of the membrane (12), can produce a fluid-conducting connection to the supply vacuum or to the outside pressure until the control pressure in the chamber (11) corresponds to the force exerted by the plunger-type armature (5) on the membrane and, in particular, is proportional to it.

Abstract: A current-pressure transducer, in particular for a vacuum control in automotive vehicles, is developed with a chamber (11) which is provided with a connection (18) for supply vacuum, with a connection (19) for removal of control pressure, with an air inlet for outside pressure and with a membrane (12) as chamber wall. The membrane can be displaced by a plunger-type armature (5) of a plunger-type armature electromagnet (1-7). With the membrane there is controlled a double valve (13-17) which, depending on the position of the membrane (12), can produce a fluid-connecting connection to the supply vacuum or to the outside pressure until the control pressure in the chamber (11) corresponds to the force exerted by the plunger-type armature (5) on the membrane and, in particular, is proportional to it.

Abstract: In a setting member for controlling the quantitative flow of a fluid, particularly for the regulating of the idling speed of an internal combustion engine, having an electromagnet and an armature which is movable by the electromagnet in opposition to the force of a spring, a first hollow space to which the fluid can be fed and a second hollow space from which the fluid can be removed are connected to each other by a constriction through which a piston attached to the armature passes upon movement between a position in current-less state and the greatest deflection of the armature. In the case of the failure of the current fed to the electromagnet a medium quantity of flow is established.