Abstract: This disclosure includes several different features suitable for use in circumaural and supra-aural headphones designs. Designs that reduce the size of headphones and allow for small form-factor storage configurations are discussed. User convenience features that include synchronizing earpiece stem positions and automatically detecting the orientation of the headphones on a user's head are also discussed. Various power-saving features, design features, sensor configurations and user comfort features are also discussed.

Abstract: Disclosed is an assembly set for a slat-band conveyor including lateral rims which are formed by two lateral parts, the lateral rims being hinged together, and including plates which are connected to the lateral rims. The lateral parts have substantially the same geometry.

Abstract: Disclosed is an assembly set for a slat-band conveyor including lateral rims which are formed by two lateral parts, the lateral rims being hinged together, and including plates which are connected to the lateral rims. The lateral parts have substantially the same geometry.

Abstract: In a method and apparatus for determining the curvature of a curve passing through a plurality of points, the shape of which is defined by a line connecting these points, curvature is assigned to the individual points by determining the position of adjacent points relative to the individual points. The curvature of a point (B) is determined by further taking into account two additional points (A, C), one of which (A) lies on the connecting line forward of the respective point (B) and the other (C) on the connecting line behind the respective point (B). The points (A, C) are determined such that they are as remote as possible from the respective point (B) and, at the same time, no points exist which lie between the respective point (B) and one of the additional points (A, C), and which are farther than a set distance from the connecting lines between the respective point (B) and each of the two additional points (A, C).

Abstract: A switch cabinet with a rack that can be closed or is closed by at least one double-walled cabinet door, three side walls, a top wall and a bottom wall, where the side walls each has an internal wall and an external wall and are attached to the rack. With a special angling-off of the internal wall for the side walls and the back wall, a completely sealed and shielded internal space of the switch cabinet is produced, wherein the rigid attachment of the internal walls and the external walls is accomplished from outside the supported interior of the switch cabinet.

Abstract: The invention relates to a switch cabinet with a rack that can be closed or is closed by at least one double-walled cabinet door, three side walls, a top wall and a bottom wall, where the side walls each consist of an internal wall and an external wall and are attached to the rack. By means of a special angling-off of the internal wall for the side walls and the back wall, a completely sealed and shielded internal space of the switch cabinet is produced, wherein the rigid attachment of the internal walls and the external walls is performed from outside the supported interior of the switch cabinet.

Abstract: A modular housing assembly comprises a base cabinet body having a height and four orthogonal wall elements. A fifth wall element is angled with respect to the first, second, third and fourth wall elements and a pedestal is fixed below the third wall element. First and second lateral protective walls overlay the first and second wall elements and extend along the height of the cabinet body. A double-walled door is mounted with respect to the base cabinet body and a roof housing fixed above the fourth wall element. Wall redundancy substantially increases the ability of the assembly to resist vandalism and further protect the contents of such assembly.

Abstract: The invention relates to a cooler which can be fitted on the cover of a control box and connected thereto via an inlet aperture. The rain and dustproofing is improved by the invention in that an air inlet and outlet are fitted in the top of the cooler housing away from the control box, a cover component is connected to the top of the cooler housing at a distance therefrom, projects on all sides of the cooler housing and forms around it a downwardly open ventilation grille and is divided by partitions in the cover component into at least two chambers connected to the air inlet and outlet.

Abstract: A cooler which can be fitted on a rear wall or a side wall or a door of a switching cabinet and can be connected thereto via an intake and an inlet aperture of an internal circuit. According to the invention, rain and dustproofing is improved because alongside a central ventilation shaft open at the top, the cooler housing has vertical ventilation chambers open at the top as part of an external circuit hermetically separated from the internal circuit, the top of the switching cabinet and cooler housing is covered by a roofing component spaced therefrom which projects on all sides beyond the control box and the cooler housing and leaves a peripheral ventilation slot opening downwards. The roofing component is divided by two partitions into three chambers which communicate with the ventilation shaft and both ventilation chambers in the cooler housing.

Abstract: A switchgear cabinet with a cabinet body and a cover, wherein the cover projects with lateral shoulders past the lateral walls of the cabinet body, which extend in a direction of a cabinet depth of the cabinet body. Joining another switchgear cabinet adjacent a first switchgear cabinet is possible with a relatively small cost, if the lateral walls are embodied as separate elements and can be interchangeably connected with the cover or the cabinet body.

Abstract: The invention relates to a switchgear cabinet air conditioning arrangement, having a central control arrangement as well as sensors communicating therewith and air conditioning components. Numerous air conditioning "strategies" are made possible, and hence an adaptation to variable conditions of use, are achieved by the measures where various air conditioning components are disposed at various locations in the switchgear and are controlled or regulated by means of the central control arrangement in dependence on sensor signals and/or adjustable or programmable controls.

Abstract: A switchgear cabinet having a rack assembled from a plurality of frame legs bent at the side walls. The rack has open, vertical sides which are closed off by side walls and a rear wall fastened to facing frame legs of the rack. A cabinet door is hingedly connected to vertical frame legs of the rack front against which it is arrested in the closed position. The rear and side walls are covered by corresponding protective walls spaced apart from the rear and side walls and connected to facing vertical frame legs of the rack. The cabinet door is double-walled, an outer door wall of which is spaced apart from an inner door wall thereof and forms receptacle spaces for seals, hinges and locking elements free in the direction of vertical edges of the outer door wall. The protective walls of the side walls have beveled protective wall vertical edges which cover the free space between the protective wall of the rear wall and the receptacle space between the outer door wall and the rack.