Abstract: A tool interface (5) that is easy to produce but also precise for coupling a tool head (2) to a tool shank (3) in a centered manner in respect of a shank axis (4), comprises a first interface part (6) that is connected to the tool shank (3) or to the tool head (2), and a second interface part (7) that is connected to the respectively other tool part, namely, to the tool head (2) or to the tool shank (3). The two interface parts (6, 7) have interface surfaces (9, 10) that substantially complement each other and are intended to bear flatly on each other. The interface surface (9) of the first interface part (6) comprises an inner cone surface (21) and an outer cone surface (22), which surrounds the latter on the outside and coaxially.

Abstract: A system is described herein that predicts defects in a portion of code of an application that is configured to execute on a computing device. Versions of code are analyzed to locate change bursts, which are alterations to at least one portion of code over time-related events. If a change burst is identified, defects are predicted with respect to the code based at least in part upon the identified change burst.

Abstract: A device for generating a floating state of an object by sound waves includes a rigid support structure having a top surface for absorbing forces generated by the gravitation or acceleration of the levitating object and perpendicularly acting on the top surface. A thin oscillatory element is arranged in parallel to the top surface. Further provided is a vibration generator for making the thin oscillatory element vibrating and levitating above the top surface so that the object is levitating above the thin oscillatory element without contacting it.

Abstract: A device for generating a floating state of an object by sound waves includes a rigid support structure having a top surface for absorbing forces generated by the gravitation or acceleration of the levitating object and perpendicularly acting on the top surface. A thin oscillatory element is arranged in parallel to the top surface. Further provided is a vibration generator for making the thin oscillatory element vibrating and levitating above the top surface so that the object is levitating above the thin oscillatory element without contacting it.

Abstract: In a device for conveying and positioning structural elements at a conveying track, a structural element is brought into pending state at the conveying track and the conveying track is tilted in conveying direction so that the structural element slides downwards to approach a target point. The position of the structural element is detected. The device further includes a control unit wherein the position of the structural element is detected within a predetermined range of the target point to be reached, and a time, at which the conveying track is tilted and re-tilted at a predetermined angular speed by a predetermined angle, is determined by using a calculation and control algorithm, so that the structural element is intercepted.

Abstract: The present invention relates to a device for conveying structural elements sensitive to touch along a conveying track in a non-contact way.

Abstract: The invention relates to a method for measuring the receiver-side bit error rate of the transmission path of a DVB transmission system in which the data stream to be transmitted is channel-coded on the transmitter side by a Reed-Solomon coder and on the receiver side channel-decoder by a corresponding Reed-Solomon decoder. According to the method, a test data stream is fed in on the transmitter side and the Reed-Solomon coder is switched off so that the receiver-side decoder recognizes a data stream with non-correctable errors and allows the same to reach the output uncorrected. The bit error rate is then determined from the uncorrected test data stream.

Abstract: A handler for transporting planar substrates, in particular wafers, used in the semiconductor industry, between at least two stations. The handler includes a movable flat support arm for receiving a substrate and means for defining the location of the substrate in the area of a predetermined point on the support arm. A vibration generator for generating a longitudinal ultrasonic vibration is provided, that the vibration generator interacts with the support arm in such a way that a substantially stationary vibration with at least one antinode can be set on the flat support arm, which permits a levitation of a substrate placed thereon. A means for defining the location of the substrate provide a lateral positioning exclusively by an interaction with the edge area of a substrate.

Abstract: The proposal is for a handler for the transporting of flat substrates, in particular or wafers (9) for application in the semi-conductor industry between at least two stations with a mobile planar carrying arm (6) for taking up a substrate as well as the means for layering information of the substrate in the area of a pre-given place on the carrying arm (6). The invention is based on the task of avoiding detrimental effect to the underside of a substrate during layer positioning and the generation of particles on layer positions.

Abstract: In the spray head for the administration of a multicomponent material by means of gas, the delivery channels (7, 7a) for the individual components and the gas channel (8) are arranged separately from one another. The gas channel, provided with a gas supply (3), is divided by a separating web (9) into a plurality of channels (8a, 8b) running parallel to the separating web. Into the channels (8a, 8b) there open out delivery channels (7, 7a). The separating web protrudes beyond the channel ends (6, 6a).

Abstract: In the spray head for the administration of a multi-component material by means of gas, a gas channel (2) with gas connection (3) is provided, which channel is divided by a separating web (4) into a plurality of channels (2a2b) running parallel to the separating web. Into these channels there open out boreholes (5, 5a) for receiving cannulas. The open ends of the boreholes (5, 5a) go into grooves (7, 7a) which serve for guiding the cannulas (6, 6a). The grooves are arranged parallel to the gas channel (2). The separating web (4) protrudes beyond the channel ends (9, 9a).

Abstract: In this needleless injection instrument, the piston pump (17) for the medium to be injected is connected to a drive motor (18). On the motor housing (1) of the drive motor, an operating element (2) is fitted displaceably and a stroke counter (7) for counting the applications is arranged. To the free shaft end (11) of the stroke counter, a control cam (6) is fixed which engages with a control pin (4) supported on a control roll (3) which is located in the operating element (2) for the drive motor (18).

Abstract: In a needleless injection instrument with a removable vaccine pump, the motor housing (1) is provided with a receiving bush (20) which is to receive the vaccine pump. In an opening (7) in the motor housing (1) and the receiving bush (20), a bolt (6) is located which is loaded by a spring (9) and has a nose (5) which engages in a recess (4) in the pump housing (18). The motor housing is also provided with a displaceable operating element (8), to which the bolt (6) is connected and which has a recess (11) for receiving a locking device (14). The locking device (14) is fixed by means of a leaf spring (13) to the motor housing; it can engage either in a groove (15), located in a spring housing (17) provided in the motor housing, or in the recess (11) of the operating element (8).

Abstract: In this piston pump, the pump housing (1) is provided with a mounting (E) for a vessel (3), which consists of a pipe end (4) provided with a hollow needle (5) and of a connecting element (9, 16, 17) for connecting the vessel (3) to the pipe end (4). The pump housing (1) has an inlet channel (7) which is connected to a channel (6) in the pipe end (4).So that the vessels (3) can be connected rigidly to the piston pump, the connecting element consists, for example, of a metal sheet (9) bent in the form of a U, which is provided on its inner side with U-shaped yokes (10, 11), the yoke (10) facing the pump housing (9) engaging into a groove (12) provided in the pipe end (4) and the other yoke (11) serving for surrounding the vessel neck.

Abstract: In this injection instrument, the piston pump (A) is connected to a drive motor (B), the working piston (5) of which is arranged displaceably in a cylindrical bore (6) of the motor housing (1).To ensure that, in the case of different piston strokes of the piston pump (A), the pump pressure remains the same and, on the other hand, injection can be effected only when the instrument rests on the skin, the drive motor (B) is provided with a spring housing (3) in which is located a working spring (2) which is supported at one end on a supporting face (18) in the spring housing (3) and at the other end on an end face (9) in the motor housing (1) and is guided by a part of the working piston (5) designed as a piston rod (4). To retain the tensioned working piston (5), the spring housing (3) is provided with a recess (11) for a pawl (10) which is supported by a bolt (13) arranged displaceably in the motor housing (1).

Abstract: In this injection instrument, the piston pump (A) is connected to a drive motor (B), of which the working piston (5), supported on a working spring (2), is arranged displaceably in a cylindrical bore (6) of the motor housing (1). A pressure chamber (7) which has supply devices (3, 8) and discharge devices for the pressure medium is formed in the bore (6). The working spring (2) is held in a tensioned position by a pawl (10) supported by a bolt (13), the bolt (13) being supported on an operating element (C).So that injection can be initiated only when the nozzle (23) is pressed onto the subject, the bolt (13) is connected rigidly to the operating element (C), and its free end is arranged displaceably in the motor housing (1).

Abstract: In this injection instrument, the piston pump (A) is connected releasably to a drive motor (B), the working piston (5) of which is arranged displaceably in a cylindrical bore (6) of the motor housing (1).So that the piston pump (A) can be coupled to and uncoupled from the drive motor (B) by simple manipulations under sterile conditions and so that a ram play independent of the particular piston stroke is present between the piston pump and drive motor, the pump housing (20) has on the pump head (17) an annular groove (18) and a pair of flattened portions (22, 23) which are parallel to one another and reach to the bottom of the annular groove (18).

Abstract: In this injection instrument, the piston pump (A) is connected to a drive motor (B), of which the working piston (5) supported on a working spring (2) is arranged displaceably in a cylindrical bore (6) of the motor housing (1). A pressure chamber (7) which has supply devices (3, 8) and discharge devices (4, 9) for pressure medium is formed in the bore (6).To ensure that the pressure medium cannot be simultaneously supplied to and discharged from the pressure chamber (7), there is a control shaft (37) which is assigned to valves (8 and 9). The control shaft (37) is provided with a lever (38) and has segment-like recesses (39, 40) which interrupt the engagement of the valves (8, 9) with the control shaft (37). The recesses (39, 40) are arranged on the control shaft (37) so that the valves are not engaged simultaneously with the control shaft (37).

Abstract: In a vaccination gun provided with a piston pump for the vaccine and a gas-propelled motor for the vaccine pump, the drive motor is arranged with one end thereof coupled to the vaccine pump. In the handle grip of the vaccination gun, a coupler connects a propellant gas cylinder, through a trigger, or locking valve, to the drive motor. In order to assure that the injection pressure of the propellant gas remains between about 270 and 300 bar regardless of the pressure in the cylinder, there is provided a pressure regulation chamber between the coupler and the locking valve, which chamber is provided with a flap valve coupled to a hollow shaft. The shaft moves within a cylindrical portion of the chamber and is provided with radial borings for permitting the propellant gas to pass between the main part of the chamber and the cylindrical portion thereof.

Abstract: In a hinge joint having compact hinge halves and porous fixing plugs (1, 2), the hinge halves are provided with recesses (26) and (27), and linked in an articulated manner and guided by at least one ring (3) and (4), respectively. The ring(s) (3, 4) run in grooves (9, 10) which are arranged concentrically to the rotation axis of the joint.For use of the hinge joint in the medical field, it may be advantageous that the fixing plugs (1, 2) have a microporous structure and the rings (3, 4) are linked to covers (29) via bridges (28).