Abstract: The invention relates to a method for producing a water-blown polyurethane/polyisocyanurate rigid foam material that can be sprayed, by reacting a mixture comprising an aromatic polyester polyol, a first, comparatively short-chain aliphatic polyether polyol, a second, comparatively long-chain aliphatic polyether polyol, an isocyanate component, a blowing agent having water at least as a main component, and a catalyst component. The invention further relates to a rigid foam produced according to the method according to the invention, a composite material composed of said rigid foam and a pipe, and to the use of such a composite material for transporting liquid or gaseous media.

Abstract: A compressed air supply system for motor vehicles includes a compressor, control electronics, an air dryer having an inlet channel for non-dried compressed air, an outlet channel for the dried compressed air, and a dehumidification device through which the compressed air to be dried can flow, a pressure regulator having an outlet valve for controlling the compressor between an idle phase and a load phase, a multi-circuit safety valve that is connected to the outlet channel of the air dryer via a compressed air line, and over-flow valves for the individual circuits, a regeneration valve and a moisture sensor for detecting the atmospheric moisture in the compressed air flowing in the compressed air line. To reduce the detrimental effects of admixtures and components of the compressed air on the moisture sensor, the moisture sensor is located in a bypass channel of the compressed air line.

Abstract: A compressed air supply system for motor vehicles includes a compressor, control electronics, an air dryer having an inlet channel for non-dried compressed air, an outlet channel for the dried compressed air, and a dehumidification device through which the compressed air to be dried can flow, a pressure regulator having an outlet valve for controlling the compressor between an idle phase and a load phase, a multi-circuit safety valve that is connected to the outlet channel of the air dryer via a compressed air line, and over-flow valves for the individual circuits, a regeneration valve and a moisture sensor for detecting the atmospheric moisture in the compressed air flowing in the compressed air line. To reduce the detrimental effects of admixtures and components of the compressed air on the moisture sensor, the moisture sensor is located in a bypass channel of the compressed air line.

Abstract: An improved inductive displacement sensor for use in a hydraulic accumulator for sampling the degree of filling of the hydraulic accumulator. The displacement sensor is provided with an electrical winding on a coil former. To reduce the gas volume of the hydraulic accumulator, the winding space not occupied by the electrical winding in the coil former is filled with a further winding formed from plastic or other non-magnetic material. The further winding is not electrically connected and is wound about the electrical winding.

Abstract: An improved inductive displacement sensor for use in a hydraulic accumulator for sampling the degree of filling of the hydraulic accumulator. The displacement sensor is provided with an electrical winding on a coil former. To reduce the gas volume of the hydraulic accumulator, the winding space not occupied by the electrical winding in the coil former is filled with a further winding formed from plastic or other non-magnetic material. The further winding is not electrically connected and is wound about the electrical winding.

Abstract: A brush for the cleaning of toilet bowls has a handle which consists of an upper part and a lower part. The upper part is connected to a grip, whereas the lower part is provided with a plurality of bristles arranged on its end disposed opposite to the upper part. The upper part has a recess and the lower part is provided with a journal. The lower part has an upper section and a lower section, wherein the upper section consists of an elastic and flexible material having memory characteristics.

Abstract: An angle-of-rotation sensor comprises a coil, a magnetically conductive element within the coil which is rotatable around an axis of rotation, the axis of rotation of the magnetically conductive element being at least partially within the coil, and a single winding for the coil. The angle-of-rotation of the magnetically conductive element is determined by measuring the change in self-inductance in the coil when the magnetically conductive element is caused to rotate.

Abstract: The invention relates to polyetheresterols obtained by condensation of a polyfunctional carboxylic acid with an alcohol component, wherein the alcohol component comprises a mixture of alkanediols and etherdiols of the formula ##STR1## where m=1 to 3n.gtoreq.3 andR.sup.I, R.sup.II, R.sup.III and R.sup.IV are identical or different and, independently of one another, are hydrogen or C.sub.1 - to C.sub.4 -alkyl,and the ratio between ether and ester groups in the polyetheresterol is in the range from 0.3:1 to 1.5:1, which are suitable, in particular, for the preparation of polyurethanes having reduced fogging.

Abstract: The invention relates to polyetheresterols obtained by condensation of a polyfunctional carboxylic acid with an alcohol component, wherein the alcohol component comprises a mixture of alkanediols and etherdiols of the formula ##STR1## where m=1 to 3n.gtoreq.3 andR.sup.I, R.sup.II, R.sup.III and R.sup.IV are identical or different and, independently of one another, are hydrogen or C.sub.1 - to C.sub.4 -alkyl,and the ratio between ether and ester groups in the polyetheresterol is in the range from 0.3:1 to 1.5:1, which are suitable, in particular, for the preparation of polyurethanes having reduced fogging.

Abstract: A separator plate for a type band printer is located between the print paper and a ribbon so as to prevent the ribbon from contacting the paper. The upper edge of the separator plate is located adjacent to the print line and pushes the paper away from the ribbon against the hammer plate. The separator plate is affixed to the printer.