Abstract: A method and device for producing a monoaxially or biaxially stretched plastic film are disclosed in which in the intermediate space (Z) tapering in a wedge shape to the contact line between the melt film or plastic film and the roller jacket spaced apart therefrom or the roller surface spaced apart therefrom of the cooling roller, at least one device for preventing precipitation of condensate (K) in the intermediate space (Z) is used and is designed such that precipitation of condensate (a) on the underside of the melt film or plastic film facing the roller jacket (9) or on the roller jacket of the cooling roller is prevented, and/or a condensate (K) which has precipitated there evaporates or vaporises, and/or condensate disposed in the intermediate space is transported away, suctioned off, or blown out and/or runs out to the side.

Abstract: The invention relates to a valve actuator having an actuator housing and an actuator element, in particular a pneumatic piston or a control diaphragm, that is movably mounted within the actuator housing. In an assembly state of the valve actuator, at least one first contour of the actuator element engages in at least one second contour which is fixed relative to the actuator housing in such a way that a rotation of the actuator element about an actuating axis is blocked in at least one direction of rotation.

Abstract: A functional component of a motor vehicle lock arrangement, the functional component has a drive arrangement with a motor and an adjustment element coupled to the drive arrangement. The adjustment element can be deflected out of a predetermined engaged position in a deflecting movement, and the deflected adjustment element can be reset into the engaged position in a resetting movement. The deflecting movement can be produced by means of the drive arrangement and the drive motor operates in the motor mode, and the resetting movement is spring-driven and the drive motor operates in the generator mode. The functional component may include a monitoring unit which determines the position of the adjustment element reached in the resetting movement from the motor voltage of the drive motor in accordance with a monitoring rule.