Abstract: A foam pump comprising a pump bellows, wherein the pump bellows have a neck at the output side, wherein the neck has a valve rod having a central bore for forming a mixing chamber, wherein the mixing chamber is in communication with the air space of the pump bellows by at least one air outlet opening, wherein a closable air inlet opening to the air space of the pump bellows is provided in the region of the neck of the pump bellows, wherein the mixing chamber is in communication with the medium chamber by a closable medium inlet opening, wherein the medium chamber is in communication with a medium container through a medium adjustment opening.

Abstract: The invention relates to a connectivity box (1) and a method for connecting a mobile device (2), in particular an operator panel for an automation system, to a permanently installed infrastructure (3), the connectivity box (1) possessing an identity (ID) which is transmitted to the mobile device (2). The connection of the mobile device (2) is implemented for example via a cable which is plugged into the connectivity box (1). In this arrangement the existing signal lines (4) are used for transmitting the identity (ID) or, as the case may be, the box address. The lines are looped through for standard communication. However, when a mobile device (2) is connected, the lines are separated and connected to a control logic (5) on the mobile device side. By this means the identity (ID) of the connectivity box (1) is transmitted to the mobile device (2).

Abstract: The invention relates to a connectivity box (1) and a method for connecting a mobile device (2), in particular an operator panel for an automation system, to a permanently installed infrastructure (3), the connectivity box (1) possessing an identity (ID) which is transmitted to the mobile device (2). The connection of the mobile device (2) is implemented for example via a cable which is plugged into the connectivity box (1). In this arrangement the existing signal lines (4) are used for transmitting the identity (ID) or, as the case may be, the box address. The lines are looped through for standard communication. However, when a mobile device (2) is connected, the lines are separated and connected to a control logic (5) on the mobile device side. By this means the identity (ID) of the connectivity box (1) is transmitted to the mobile device (2).

Abstract: A nozzle element covering open channels through the use of a removable cover forming thus nozzles for a windshield washer system. A preferably flat seal elastically covers several apertures. Advantageous embodiments concern the division of the nozzle unit and the allocation of the seal to the channels ending at the apertures.

Abstract: In an electric hand tool, particularly a drill, with a housing, an electric motor which is received in the housing and has a motor shaft parallel to the housing axis, and with a work spindle which is driven by the electric motor via a transmission gearing, the housing is divided along a dividing plane for the purpose of switching from straight drilling to angular drilling and it is provided that the front housing part containing a bearing for the work spindle and the rear housing part containing the electric motor can swivel relative to one another in such a way that the work spindle projecting out of the front housing part can occupy any angle between 0.degree. and 90.degree. or more relative to the motor shaft. A catch lock which can be unlocked and/or locked manually stops the two housing parts in the selected swivel position. A torsionally rigid transmission of force from the motor shaft to the work spindle is realized in every swivel position of the housing parts in the transmission gearing.