Abstract: A protective apparatus for preventing the infiltration of contaminants in a fluid-operated percussion device, having a striking tool (3) that is guided to move in a housing (2) and is driven by a percussion piston in the striking direction (arrow 1), and a seal (7) that is supported at least indirectly on the housing (2), on the one hand, and on the striking tool (3), on the other hand, and has a securing segment that is fixedly disposed with respect to either the housing or the striking tool. The seal (7) is disposed between the inner guide portion (5b) of the striking-tool guide and the theoretical striking plane (4) of the percussive piston on the striking tool (3), when seen in the direction opposite the striking direction (arrow 1), such that the countersurface (3e) for the seal, which countersurface moves relative to the securing segment (7a) of the seal (7) and is in contact with the seal, is unaffected by wear.

Abstract: To present a SOI type MOS element excellent in yield, performance and characteristic, easy in manufacture, and low in cost, and a method of manufacturing the same. A SOI type MOS transistor structure comprising polysilicon electrodes 128 for gate, source and drain composed by burying into trench holes 120a, 120b, 120c respectively formed in a semiconductor substrate 110, a gate oxide film 122 formed in the entire inside of the trench hole 120a, N− diffusion layer 124 and N+ diffusion layer 126 formed in the entire inside of the trench holes 120b and 120c, and a thick SiO2 film 114 in a trench hole 113 formed in the semiconductor substrate 110 so as to surround the transistor.

Abstract: A microminiature microwave electron source excited by a pulsed microwave power through a coaxial to emit electrons includes an electrically conductive chamber that is connected to an external conductor of the coaxial cable at an openings end thereof and has an opening anode in a bottom portion thereof, a central conductor adjacent to the electron source, the central conductor having one end thereof connected to a central conductor of the coaxial cable, a carbon nanotube cold cathode formed on the other end thereof being supported by the chamber such that the cold cathode opposes the anode, a coupling iris that airtightly and fixedly supports the central conductor at an opening end of the chamber, and a connecting device for electrically and mechanically connecting the opening end of the chamber to the central conductor of the coaxial cable so as to connect the central of the electron source to the central conductor of the coaxial cable.

Abstract: The invention relates to cotton buds and to swabs for medical use. The inventive buds or swabs are characterized in that they are extruded and provided with a continuous inner web. Said inner web may be linked with the inner surface of the buds or swabs by webs that are produced of the same material. The invention provides buds or swabs that are slightly less rigid while guaranteeing good working properties and a good usability. At the same time, their weight and the material required is considerably reduced.

Abstract: An arrangement and method for protecting a multiple voltage supply system against voltage arc-over between the different voltage planes. For this, the voltage in the low-voltage plane of the supply system is clamped to the low-voltage value with a voltage limiter until a battery disconnect switch in the high-voltage plane of the supply system is opened and the generator output voltage in the high-voltage plane is adjusted back to the voltage value of the low-voltage plane. As a result, the high-voltage plane of the supply system is disconnected from the high-voltage sources. Consequently, the voltage in the low-voltage plane is prevented from increasing even in case of a short-circuit between both voltage planes of the supply system and the consumers in the low-voltage plane can continue to be operated safely.

Abstract: A compression piston ring includes a ring gap defined by facing first and second end faces; a ring back situated diametrically opposite the ring gap; first and fourth quadrants extending from opposite sides of the ring gap and second and third quadrants extending from opposite sides of the ring back to the respective first and fourth quadrants. The first end face is situated in the first quadrant and the second end face is situated in the fourth quadrant. The wall thickness of the compression piston ring is reduced exclusively in the first and fourth quadrants.

Abstract: A linear displacement guide, comprising a guide rail and slide that is supported via roller elements on the guide rail. The guide rail contains a groove extending essentially in longitudinal direction and through openings that can be covered for fastening the guide rail, wherein at least one of the through openings is located in the groove region. The linear displacement guide is provided with a covering means to be arranged on and secured to the guide rail to permit a simple and tolerance-insensitive assembly. The invention suggests securing the covering means, designed as cover band (4), on the guide rail. The cover band should comprise a center section (20) and two adjoining clamping legs (21), which are angled relative to the center section (20), wherein the cover band (4) can be fastened to the guide rail (1) by fitting the two clamping legs against the side walls (15) of groove (14).

Abstract: The needles (18, 19) of a needle set (17), which substantially agree in their geometry, have butts (28, 29) of different lengths, which have a predetermined breaking point (57, 58). The predetermined breaking points are differently embodied, so that the breaking torques of the butts (28, 29) of the needles (18, 19), which are a part of the set (17), are different. By means of this it is possible, on the one hand, to assuredly prevent damage to the knitting machine, but on the other hand to assure the dependable operation of the needles.

Abstract: A safety device for a steam frothing machine to form a froth beverage, which machine has a steam pipe (3) that is connected to a steam generator 1′ and has a steam discharge opening (13), and a frothing head (4), which can be pushed onto the steam pipe and surrounds the steam discharge opening (13) in the mounted state. To protect an operator from steam in the event that the steam discharge is accidentally activated when the frothing head is removed, a hollow body is pushed onto the steam pipe (3) and enable the discharge of steam essentially downward in an enabling position. In a position other than the enabling position of the hollow body, the downward discharge of steam is essentially prevented.

Abstract: A comfort noise generating apparatus designed to reduce a feeling of fracture in a voice sound and a feeling of unsuitableness at timings before and after a process by an NLP or the like. A comfort noise according to a voice signal after an unnecessary component has been removed is formed and added to this voice signal. The apparatus comprises: a noise generator for generating a noise which is multiplexed to a voice signal after completion of a process by an NLP; a signal level analyzing part for measuring a signal power of a voice signal before the process; a multiplier for varying noise characteristics from the noise generator in accordance with an analysis result of the signal level analyzing part; a signal frequency characteristics analyzing part for selecting the optimum coefficient from a coefficient register; a band pass filter for forming a comfort noise by the selected coefficient and a white noise signal; and an adder for multiplexing the comfort noise to the voice signal.

Abstract: A semiconductor chip mounting tape on which external connecting terminals are formed in accordance with a layout pattern has post portions which are to be connected to a semiconductor chip and external connecting terminals. Post portions are formed on the first surface of an insulation tape used as a base of the semiconductor chip mounting tape. External connecting terminals are formed on the second surface of the insulation tape. The post portions and the external connecting terminals are integrally formed by same solder balls via through holes formed in the insulation tape.

Abstract: An optical transmitting and receiving device with light-conducting receiver, which are arranged inside the housing, in front of a light-permeable cover between a transmitting unit and a receiving unit, so that the share of light reflected at the light-permeable cover of the transmitting unit is conducted to the receiving unit, thus making it possible to detect the operational readiness of the transmitting unit as well as the degree of soiling of the light-permeable cover.

Abstract: A displaceable nozzle (8) of an injection steam generator for small appliances, particularly irons or ironing stations, comprising a steam chamber (3) inside a steam generator housing (1) provided with an injection opening (5), is positioned telescopically on a fixed member to define a nozzle chamber (10). This nozzle (8) can be displaced by an inside pressure in the nozzle chamber in a first pressure range in the direction of the injection opening (5) and can be moved back from the injection opening (5) by a restoring force e.g., a restoring spring (12), wherein the inside pressure in the nozzle chamber (10) is lower in second pressure range than in the first pressure range. A drain passage (18) for the nozzle chamber 10 is connected via a valve arrangement (19, 21) to the fixed member (11), so that excess residual water, which exits when the nozzle (18) is moved back from the nozzle chamber (10), does not cause calcification of the nozzle opening (9) and the injection opening (5).

Abstract: A stamping device includes a base body; an elongated punch having a longitudinal axis; a supporting arrangement for holding the punch in the base body and for guiding the punch for axial displacements between an advanced position and a retracted position; a driving unit releasably held in the base body and including a driving device for axially displacing the punch; a coupling device having a first state in which the coupling device operatively connects the driving device with the punch and a second state in which the driving device is disconnected from the punch; and a receiving arrangement for holding the punch in a desired axial position when the coupling device is in its second state.

Abstract: A package (1) for packaging and storing elongated items such as sewing needles (2, 3) has a tray (5) and a lid part (6), which are held or connected together to define a housing space. The tray (5) and the lid part (6) each have a flap-type section (14, 19) at their bead end. These sections can be pivoted toward and away from one another, and can be latched together. When the two flaps (14, 19) are pivoted away from one another, they expose the ends of stored items, e.g., the sewing needles (2, 3), projecting out of the housing space (48), so the items can easily be pulled out of the housing space (48). It is therefore possible to secure the items or sewing needles (2, 3), for example, in a frictional, in the housing space (48).

Abstract: An apparatus for testing tires performs the following steps: rotating the tire relative to a camera; projecting light sections on a tire surface; capturing projected light sections by the camera at defined rotary positions of the tire relative to the camera; applying signals representing the captured projected light sections to an image processing system; determining the shape of the captured projected light sections by the image processing system; determining the shape of the tire surface from the shape of the captured projected light sections; repeating the above steps for different inflation pressures of the tire; and comparing the determined shapes of the tire surface for different inflation pressures of the tire for determining shape changes of the tire due to changes in the inflation pressure.

Abstract: A method for determining the fatigue strength of a corrodible connecting part between at least two structural parts, with the connecting part being subjected to specified corroding surroundings and a given repeated mechanical strain while being used. Diagrams (stress-number curves) that represents the variable of the repeated strain in relation to the number of strain repetitions until the destruction of the connecting part are used in order to determine the fatigue strength. First, a strain-free pre-corrosion of the connecting parts is carried out in a corrosive atmosphere corresponding to the corrosive atmosphere during the intended use of the part, in a time period after which the duration of the pre-corrosion has hardly any influence on the shape of a stress-number curve that is recorded subsequently.

Abstract: The invention relates to a method for controlling the boost pressure on an unsteady-running piston internal combustion engine with a turbocharger. According to the inventive method, a blow-off valve, which is connected upstream from the supercharger turbine in the exhaust gas tract, is controlled by an engine control, the position of the pedal and a boost-proportional gradient are detected by the engine control when initiating an acceleration operation and, when a predeterminable value for the boost-proportional gradient is surpassed, the blow-off valve is actuated in an opening direction in order to effect a predeterminable controlled increase of pressure.

Abstract: A method and a device for destroying drifting sea mines (5). According to the invention, a capture-and-destroy device (11) is brought into the vicinity of the drifting sea mine (5) with the aid of a buoyant body (12, 22) having a coupled-on drive system (13) or a drive device (24), and the mine is captured in that the sea mine (5) is surrounded by deployment of a capture net (16) normally located in a capture unit (11.1) of the capture-and-destroy device (11). A motorized element (17) disposed in the capture unit (11.1) draws the capture net (16) together automatically until the captured sea mine (5) rests directly against a destroyer unit (11.2) with a destructive charge (15). The destructive charge (15) is then automatically detonated to destroy the mine.

Abstract: A sash and case window in which the top sash (14) opens inwards by a hinge (12) which, in the preferred embodiment, resembles a parting bead and is located in a section of the parting bead (8) of the case or box lining (13).