Abstract: The invention relates to a magnetic rotation component (1) comprising a magnet component (4) that includes a permanent magnet, and a rotation component (5) that has an axis of rotation (r). In order to design the magnetic rotation component (1) in such a way that same has a simple structure and can be mounted easily and cost-effectively, the magnet component (4) and the rotation component (5) are arranged so as to be fixedly connected to each other by means of a flange (6). The magnetic rotation component (1) can be designed as an impeller (2).

Abstract: A sensor assembly is provided for determining an angular position of a rotor in relation to a stator, including two components, a magnet and a sensor, where the components are arranged in such a way that the components can be rotated in relation to each other about an axis of rotation, and the sensor includes a first and a second sensor pair, each having a first and a second sensor element. A straight line is associated with each sensor pair, along which straight line the two sensor elements lie and which straight line intersects with the axis of rotation, where the first sensor element has a smaller distance from the axis of rotation than the second sensor element, and the straight line associated with the first sensor pair is spaced apart from the straight line associated with the second sensor pair by a rotational angle about the axis of rotation.

Abstract: Composite articles having a highly filled plastic component connected to a basic body are provided which avoid the occurrence of cracks in the plastic component under changing thermal conditions. More specifically, the plastic component is not fixed directly to the basic body but instead is fixed indirectly thereto via at least one intermediary component made of an elastic material. Preferably, the intermediary component is embedded by a frictional and/or positive connection with at least one projection in a groove or opening (28) of the plastic component.

Abstract: With a high-grade plastic component, e.g. a plastic-bonded permanent magnet (1; 2), which is fixed to a basic body (4; 5), the basic body (4; 5) shows at least one strap-shaped part (7; 8) for the purpose of fixing it to the plastic component. In order to avoid the plastic component (1; 2) tearing off the basic body (4; 5), the strap-shaped part (7; 8) is surrounded with the high-grade plastic during manufacture of the plastic component and is arranged in the high-grade plastic in such a way that it can take up contraction strains of the high-grade plastic after manufacture of the plastic component at least partly by bending.

Abstract: A plastic-bonded ring magnet (1) with a ring-shaped basic body (2) for fixing the magnet (1) onto a shaft is laid out in such a way that the magnet (1) is essentially located at the front (11) of the basic body (2), the inside diameter of the basic body (2) being smaller than the one of the magnet and the outside diameter of the basic body (2) and the magnet (1) being essentially identical. In particular for the purpose of improving the safety against torsion of the magnet (1) on the basic body (2) and facilitating the injection-moulding manufacture of the magnet (1) on the basic body (2), the basic body (2) shows at least one axially oriented, channel-shaped recess (5) which is filled with magnetic material.

Abstract: The invention relates to a rotor (1) for an electric motor showing a hub (2) which is connected to a magnet (2). In order to avoid deformations of the inside thread (4) located in the hub (3), the hub (3) is spaced from the surrounding magnet (2) and is protected against deformations by means of inserting a core (11) during the magnet (2) is injection-moulded. (FIG. 1).

Abstract: The invention relates to a rotor (1) for an electric motor showing a hub (2) which is connected to a magnet (2). In order to avoid deformations of the inside thread (4) located in the hub (3), the hub (3) is spaced from the surrounding magnet (2) and is protected against deformations by means of inserting a core (11) during the magnet (2) is injection-molded.

Abstract: A generally U-shaped brake magnet for a watt-hour meter molded from a thermosetting resinous material having powdered permanent magnet material embedded in the resinous material only adjacent the surfaces of the legs of the U which form the air gap into which the brake meter disc extends and which may further include reinforcing material embedded in the legs and the base of the U. These reinforcing materials can be non-magnetic metal particles having sharp edges or non-magnetic fibrous material.

Abstract: A permanent magnet energized holding device for holding of, or onto, ferromagnetic objects and readily switchable between "on" and "off" positions, has outer and inner cup-shaped pole shoe members of good magnetically conductive material concentrically nested in spaced apart relation one inside the other with their rim edges or pole faces lying in a common plane. A ring-shaped stationary permanent magnet is fixed in the space between the peripheral side walls of the cup members, and the cup members and stationary magnet are correspondingly divided magnetically into two portions at the same points therearound by non-magnetic mediums. A rotatable permanent magnet sandwiched between the base end walls of the cup members is rotatable therebetween by an operating shaft or other actuating means to switch the holding device between its "on" and "off" positions. The two magnets are magnetized in the direction of their smallest dimension or thickness, with portions of each having opposite magnetic polarity.