Abstract: A device for air conditioning housings areas, components, media and the like, especially for cooling components (3) situated in electric or electronic installations, appliances or the like, by an air or liquid flow. A chamber (1) is provided, which includes at least one adjustable membrane (5) and a group of openings (7) which is arranged at a distance (9) directly in front of a partition wall (2) containing openings (8). An air or liquid flow which is oriented through the openings (8) of the partition wall (2) is caused by the adjustment of the membrane (5) and the difference between the flow behaviour of the suction process and that of the discharge process.

Abstract: A switching device for programmable control of electrical and electronic apparatus includes a support plate and a slide switch which is moved along a forked guide track defined on the support plate. The support plate is formed of magnetically conducting material or a magnetic plate is disposed below the support plate. The actuating slide is provided with magnets which cooperate with the magnetically conductive support. Several switching elements disposed along the track, which switching elements, upon being actuated by the actuating member, effect control processes of the electrical or electronic apparatus. The switches may be interrupted conductor tracks, capacitive sensors, proximity switches, light gates, and the like. A symbol plate is disposed above the support plate and the slide is moved along through-openings in the symbol plate which define the switching options. The operator follows the guide of the labels disposed on the symbol plate.