Abstract: A vacuum cleaner nozzle for floors and carpets having a housing comprised of an upper part and a slide sole, a pivotable rocker located in the housing on a rear segment in working direction and an actuating lever to operate the rocker. Strip-shaped gasket elements are attached to the rocker, which are arranged in working direction in front of and behind a suction port formed into the slide sole and can be retracted and moved out of openings on the lower side of the housing with a pivoting movement of the rocker.

Abstract: A vacuum cleaner nozzle has a housing with a plastic upper part, a slide sole and a gasket base pivotably arranged around an axis in the upper part of the housing. There is at least one strip-shaped gasket element that can be retracted and moved out with an adjusting movement of the gasket base at the lower side of the nozzle. The slide sole is fastened to the upper part of the housing with slip joints between pivot-shaped projections on the upper part and counter-elements formed on the slide sole. The gasket base is guided on at least one of the pivots formed by slip joints.

Abstract: A floor nozzle for vacuum cleaners has a first position for vacuuming broad floor surfaces, and a second position for vacuuming narrow floor surfaces. The floor nozzle includes a suction head that has a base area with two broad sides and two narrow sides, and a tilt joint consisting of a channel connector piece molded onto the suction head and a pivotable channel section. A pipe elbow having a curvature of essentially 90° is connected with the channel section and has a connector end for a suction pipe. The channel section is pivoted out in the first position, so that the axis of rotation of the connection between the pipe elbow and the channel section is oriented at a downward slant. In the second position, the movable channel section is pivoted into the channel connector piece so far that the axis of rotation of the connection is oriented horizontally.

Abstract: A cooling device for cooling a cooled surface includes a manifold having a number of inlet slots for directing fluid into an enclosed volume or chamber, toward the cooled surface. The manifold has a number of exit ports for receiving the fluid from the enclosed volume or chamber after it has impinged upon the cooled surface. The inlet slots and exit ports may be rectangular, or may be otherwise elongated, so as to provide substantially spatially uniform heat removal from the cooled surface. The cooling device may be used for a wide variety of applications, for example for cooling small devices such as integrated circuits or other devices involving electronics.

Abstract: A vacuum cleaner nozzle has a housing with a plastic upper part, a slide sole and a gasket base pivotably arranged around an axis in the upper part of the housing. There is at least one strip-shaped gasket element that can be retracted and moved out with an adjusting movement of the gasket base at the lower side of the nozzle. The slide sole is fastened to the upper part of the housing with slip joints between pivot-shaped projections on the upper part and counter-elements formed on the slide sole. The gasket base is guided on at least one of the pivots formed by slip joints.

Abstract: A vacuum cleaner nozzle for floors and carpets having a housing comprised of an upper part and a slide sole, a pivotable rocker located in the housing on a rear segment in working direction and an actuating lever to operate the rocker. Strip-shaped gasket elements are attached to the rocker, which are arranged in working direction in front of and behind a suction port formed into the slide sole and can be retracted and moved out of openings on the lower side of the housing with a pivoting movement of the rocker.

Abstract: The present invention is directed to compounds, compositions and methods of inhibiting and treating HIV and related viruses, and methods for cocrystallizing reverse transcriptase in vitro, inhibition of the replication of HIV and related viruses thereof.

Abstract: The present invention is directed to compounds, compositions and methods of inhibiting and treating HIV and related viruses, and methods for cocrystallizing reverse transcriptase in vitro, inhibition of the replication of HIV and related viruses thereof.

Abstract: A suction head for floor vacuum cleaners has a unitary plastic housing (1) containing a suction channel (2), and a bottom plate (7) arranged on the underside of the housing and having a suction mouth (13). The suction mouth adjoins a vertically aligned, box-shaped connection element (14) of the suction channel and feeds into a bottom channel (15) of the bottom plate (7). The bottom plate (7) is pivot-mounted both on the connection element (14) of the suction channel and also at the end side on the inner surfaces of the plastic housing (1). For this purpose, the box-shaped connection element (14) contains transverse bridges (17) that define the suction channel laterally and which have bottom edges designed as bearing surfaces (18) rounded in a curved manner. The bottom plate (7) is supported on the curved, rounded support surfaces (18) of the connection element (14), and rotatably interlocked with the wall surfaces of the connection element (14) extending parallel with the transverse bridges.

Abstract: The present invention is directed to compounds, compositions and methods of inhibiting and treating HIV and related viruses, and methods for cocrystallizing reverse transcriptase in vitro, inhibition of the replication of HIV and related viruses thereof.

Abstract: A display for soft proofing an image to be reproduced using a set of selected printing colors includes a plurality of display elements each for displaying a color substantially spectrally matched to one of a set of printing colors.

Abstract: A method for treating HIV which comprises a compound of the formula ##STR1## wherein A is ##STR2## and Z.sub.i is O, Se, NR.sup.a or C(R.sup.a).sub.2, andZ.sub.ii is --O or (.dbd.O).sub.2 ;whereinR.sub.1, R.sub.2, R.sub.3, and R.sub.4 are as defined in the specification.

Abstract: A windshield washing system for a motor vehicle which moves a jet nozzle (1) from an inward rest position to an outward working position by pressure applied to a cleaning liquid. A valve cover (4) of a valve is moved, together with a nozzle support (2) by the pressure of the cleaning liquid and holds a passageway of the nozzle support closed until the valve cover engages a fixed stop (5) and the valve cover of the valve then opens. The stop is on a fixed shaft-shaped holding element (7) which, in the rest position of the jet nozzle, extends into a receiving element (9). The receiving element is inserted into a passageway of the nozzle support and is sealed, by an inner side of the valve cover. When the jet nozzle is in its working position, cleaning liquid flows through a passage space between the receiving element and the nozzle support to the jet nozzle.

Abstract: A nozzle carrier for a windshield washing apparatus has an outer cylinder (1) and a telescoping inner cylinder (2) in the outer cylinder. The inner cylinder has at an end portion thereof a jet nozzle (3) which can be shoved out of the outer cylinder. A first plunger (4) is sealed about its periphery to the outer cylinder and is movable by pressure of washing liquid away from a second plunger (5). In this manner the inner cylinder is shoved out of the outer cylinder. When both cylinders are at their greatest spacing from one another they determine, together with the outer cylinder, a space which serves to receive a particular quantity of washing liquid. Thereafter, the second plunger is urged, by pressure of the washing liquid, toward the first plunger. This causes, after the opening of a valve in series with the jet nozzle, the washing liquid to flow through a passageway (8) of the first plunger toward the jet nozzle.