Abstract: A dispenser head for a pressurized container has a channel for the medium to be dispensed that is connected to a dispensing opening and communicates with the container interior. A closure piston is arranged in the channel and closes off the dispensing opening. By applying pressure onto an actuating element, the valve of the pressurized container is actuated and the closure piston is moved into an opening position to release the dispensing opening. The closure piston has spaced-apart centering projections and flow passages therebetween for the medium. An end face of the closure piston remote from the dispensing opening has an elastic spring area with a head section interacting with the actuating element. The actuating element glides along the rounded head section when the closure piston moves into the opening and closing positions. The rounded head section is matched to the movement path of the actuating element.

Abstract: A drive is proposed for adjusting flaps, in particular flaps for supplying air in automotive vehicles, the drive having a drive motor received in a housing and a step-down gear. The housing comprises three housing parts, the second housing part having, on its one upper side, a receiving recess for insertion of the transmission parts from above and, on its other opposite lower side, a cavity for insertion of the drive motor from below. The transmission parts are fixed by a first housing part which is clipped to the second housing part and the drive motor is covered by a third housing part which is likewise clipped to the second housing part.

Abstract: The diameter of a continuous filter rod is monitored in a tubular nozzle through which successive increments of the rod are conveyed axially and which directs against the external surface of the tubular envelope of the rod a narrow annular stream of compressed air at a pressure which does not result in deformation of the envelope. The thus admitted air is permitted to escape into the atmosphere only by way of two narrow passages which flank the region of contact between the air stream and the envelope. A flow meter indirectly monitors the rate of flow of air through such passages and generates signals which are indicative of the diameters of successive increments of the envelope. The pressure of the air stream which impinges upon the envelope is constant.