Abstract: A fireproof cover for a stator winding of a stator, in particular of electromotive pumps, comprising two or more fire protection caps. The fire protection caps are made of a flame retardant material and can be placed together in an engagement position. The fire protection caps in the engagement position form a knockout opening for carrying through an iron core of the stator and form such a closed fireproof casing for the stator winding, which, however, is air-permeable through a joining gap between the fire protection caps and/or between at least one fire protection cap and the iron core, that as a result of a coil burn of the stator winding, flying sparks and flame propagation to components lying outside the fireproof casing are prevented.

Abstract: Pump, in particular a canned motor pump, to deliver liquids in water carrying domestic appliances and such like, which comprises a stator, a rotor and a drive shaft non-rotatably coupled to an impeller disposed in a pump compartment which is rotatably arranged inside a motor casing via bearing means wherein seal means are fitted on a first face end of the motor casing to seal said casing off against the pump compartment, wherein the bearing and seal means arranged on the first face end of the motor casing are in the form of a seal-bearing combination which comprises an axial bushing section for sliding arrangement on the drive shaft, a radial closing section to cover up the motor casing and at least one flexible seal element formed to said axial bushing section and/or said radial closing section.

Abstract: This present invention relates to a fan wheel for an electric motor which fan wheel comprises fan vanes and a cylindrically arranged hub wherein said hub consists of a rigid fixing section for attachment to a drive shaft of the electric motor on the one hand and of a flexible section axially extending from said fixing section on the other hand and wherein the fan vanes are allocated to the flexible section.

Abstract: A synchronous motor includes a starter device in the drive connection between the motor and a load, and a driven rotor. In the drive train between rotor and the load there is a shaft element inside which there is a cylindrical chamber in which a coaxial shaft is rotatable mounted, and on which a threaded portion is disposed in a torque-proof but axially displaceable manner. A nut (38) meshes with the threaded portion, the nut being arranged in the chamber in a torque-proof but axially displaceable manner.

Abstract: A thermal switch arrangement for electromagnetic coils of electric motors, including at least one coil, which has a winding (52, 54) and a coil former (30, 48) in the form of a winding core (32), which is enclosed by two end flanges (36, 38; 56, 58, 60, 62), and flat plugs (26, 28; 74, 76, 78), which are connected with the two ends of the winding and/or the connections of a thermal switch (80), assigned to the winding, and are inserted and locked in pockets (40, 42; 64, 66) in or at at least one end flange (36, 38; 56, 58, 60, 62) from the peripheral edge of the latter and locked. Two tags (82, 84) of the thermal switch (80) enter the pockets (40, 42; 64, 66) of the flat plug (74, 78) from the inner surface of the one end flange (36, 60).