Abstract: Adsorbent bed coating for use on a metallic surface includes a powder-like solid adsorbent bed with a grain diameter between 1 and 50 .mu.m bonded by a finely dispersed binder agent with a mass component of less than 50% with respect to the powder component. The thickness of the adsorbent bed coating on the metallic surface is less than 4 mm such that the adsorption speed of water vapor at a steam pressure of less than 20 mbar results in a weight increase of at least 5% (with respect to the adsorbent bed) within 30 minutes.

Abstract: A manually operable vacuum pump having a housing including first and second pump chambers whose volume is altered by movement of a displaceable piston which is moved by means of a piston rod attached thereto and fed through one of the first and second pump chambers. The first and second pump chambers are configured such that gas which is fed into the vacuum pump is compressed in two steps, primarily in the first pump chamber and secondarily in the second pump chamber to provide a suitable endvacuum. Thereafter, the gas is expelled from the second pump chamber through the second end cap.

Abstract: Adsorption agent cartridge includes a vacuum tight cover having an adsorption agent filler consisting of a substance which can adsorb operating medium steam. The adsorption agent cartridge further includes an inlet opening for the inflow of the operating medium steam and an exhaust opening, which preferably connects to an exhaust device, for expelling air and nonadsorbed gases from the adsorption agent filler. The adsorption agent filler is designed to adsorb the operating medium steam and not to adsorb air components. The exhaust opening and the inlet opening are so arranged with respect to the adsorption agent filler such that the non-adsorbed gases are expelled from the regions of the adsorption agent filler without the concurrent removal of the inflowing operating medium steam.

Abstract: A cooling system with a vacuum tight operating system manifold line contains at least two connecting locations on which at least an operating medium evaporator and at least a sorption agent container having sorption medium therein are coupled in an airtight manner to the operating system manifold. The sorption medium container is capable of absorbing and deabsorbing operating medium vapor.

Abstract: Adapter for connecting an adsorption agent container to an operating medium steam source includes a sealing seat for vacuum tight connection to the adsorption agent container and a sealing face for a vacuum tight connection to the operating medium steam source. The adapter further includes a flow conduit which is closed to the outside wherein the flow conduit extends from the operating agent steam source to the adsorption agent container and whereby a separating means prevents the flow of flowing operating medium particles by the operating medium steam flowing through the flow conduit.