Abstract: In at least one embodiment of a device for galvanic isolation of an electrical connection from a semiconductor switch, the semiconductor switch has two switching contacts and a control contact. The device has a printed circuit board on which at least the semiconductor switch and the electrical connection are arranged. The first switching contact of the semiconductor switch is connected to the printed circuit board, and the second switching contact is connected to the electrical connection. According to at least one embodiment of the invention, the device has a controllable actuator whose length can be varied and which has two actuator contacts, which are separated by the length of the actuator and are conductively connected to one another. The first actuator contact rests on the second switching contact. The second actuator contact makes contact, depending on the operation of the actuator, with the electrical connection, or is galvanically isolated from it, forming an isolation gap.

Abstract: In a switching device with two controlled phases, in which each phase is associated with a respective printed circuit board assembly with at least one component to be cooled on a heat sink, the heat sink has a T-shaped cross section transversely with respect to its extent direction. In at least one embodiment, the printed circuit board assemblies are arranged on both sides of the center limb of the heat sink, with the components of the two printed circuit board assemblies facing one another and resting on in each case one side of the center limb.

Abstract: The invention relates to a stationary, motor-driven underfloor saw (1), which is designed as a keyhole saw and can be displaced in the direction of the saw blade plane along the bench surface (13) as a trim saw. With respect to the position of the saw blade plane, said saw can be pivoted in relation to the bench (3) about an axis (50) that runs parallel to the intersection of the bench surface (13) and the saw blade plane.

Abstract: When manufacturing a starting device for a three-phase electric motor, especially a soft starter, in at least one embodiment an arc quenching system is at least partly removed from a commercially available contactor that so becomes to a modified contactor. In at least one embodiment, a modified contactor is used as a contactor in the starting device.

Abstract: In a switching device with two controlled phases, in which each phase is associated with a respective printed circuit board assembly with at least one component to be cooled on a heat sink, the heat sink has a T-shaped cross section transversely with respect to its extent direction. In at least one embodiment, the printed circuit board assemblies are arranged on both sides of the center limb of the heat sink, with the components of the two printed circuit board assemblies facing one another and resting on in each case one side of the center limb.

Abstract: A motor starter whose production is improved is specified. In at least one embodiment, the motor starter includes a power semiconductor switch, an electromechanical bypass switch connected in parallel therewith, and control electronics to drive the bypass switch. In at least one embodiment, the control electronics are in the form of a printed circuit board assembly which is fixed to the bypass switch in an installed position, and the printed circuit board assembly and the bypass switch are designed such that, when being fixed, the printed board assembly makes electrical contact with the bypass switch at the same time.

Abstract: An exterior vehicle mirror assembly is disclosed having a holding arm connection with reduced wind turbulence comprising a holding arm having a first end and a second end for attachment to the vehicle. A mirror head is carried by the holding arm having a mirror element. A connection device is disposed between the mirror head to the holding arm having opposing convex sides including a convex mounting side and a convex wind encountering side. The convex mounting side providing an enlarged mounting surface disposed toward the mirror head. The connection device has a contoured cradle for engaging the enlarged mounting surface of the convex mounting side of the holding arm with the opposing convex side of the holding arm being aerodynamically exposed to the on coming wind. A fastener tightly fastens the holding arm and connection device together so that a reliable connection with reduced turbulence is provided for the mirror head and the holding arm.

Abstract: An electromechanical switching device of at least one embodiment includes fixed contacts securely arranged in a housing and a moving contact bridge for bridging the fixed contacts, a moving contact carrier to carry the contact bridge, and a solenoid to act on the contact carrier. In at least one embodiment the solenoid includes a coil body fixed to the housing, an armature coupled to the contact carrier so as to move with it, a yoke to act together with the armature, and a fixing mechanism, which engages with the yoke and coil body for fixing the yoke to the coil body.

Abstract: A semiconductor module has a housing, including a power semiconductor, a cooler bearing against the latter and serving for dissipating heat loss. In at least one embodiment, a spring element, which is supported between housing and cooler, is arranged on the side of the cooler remote from the power semiconductor and prestresses the cooler against the power semiconductor.

Abstract: A power semiconductor module is disclosed, including a plate-type substrate fitted with at least one component, and a base plate provided for dissipating heat from the component via the substrate. In at least one embodiment, a supporting apparatus, which keeps the substrate in thermal contact with the base plate, has a central pressure bolt adjoined by a plurality of stamps which extend in different directions and are intended to contact-connect the substrate, the individual stamps being at non-uniform distances from the substrate in the mechanically unloaded state of the pressure bolt.

Abstract: A mirror support assembly for a motor vehicle comprising an upper support arm, an upper mounting element for mounting the upper support arms to the vehicle, a lower support arm, and a lower mounting element for mounting the lower support arm to the vehicle. A mirror head brace for uniting the upper and lower support arms includes a cast structural member made by pressure casting. The mirror head brace includes at least one longitudinal groove which determines a defined angular setting between the mirror head brace and the upper and lower support arms. The plurality of scorings functionally determine different angular settings relative to the mirror support arms of a mirror head 12 which is carried by mirror head brace.

Abstract: A stationary power drill has a drill unit disposed in a tool housing is connected to a base vertically adjustably via a guide column and is vertically adjustable along the guide column by means of a drive unit. The drive unit includes a rotating drive shaft, and a compensation spring element engaging the drive shaft and braced on the other end on the tool housing.

Abstract: A semiconductor switching module is disclosed, including a housing, the housing having openings to carry away pressure which occurs in the case of a short circuit. In at least one embodiment, the semiconductor switching module includes an inexpensive, compact housing construction. Further, after a short circuit, there is no danger to station parts or persons. In at least one embodiment, the semiconductor switching module includes a housing, the housing having openings, which can be sealed by thin walls, to carry away pressure which occurs in the case of a short circuit, the thin walls being dimensioned so that they can be destroyed or removed by the pressure which occurs in the case of a short circuit, and the openings being dimensioned so that parts which carry current cannot be touched from outside. The semiconductor switching module according to at least one embodiment, despite being compact, inexpensive construction, still achieves a high short circuit value.

Abstract: An engine control device, especially an engine control device having an internal by-pass, is disclosed. The universally applicable engine control device includes an integrated by-pass function. For this purpose, a housing includes chambers that are electrically insulated from one another and that are configured both to receive a respective power subunit, and, alternatively, to receive a continuous current-bearing element.

Abstract: A mirror support plate for use with vehicles, which can be attached to a holder by way of a chucking and sliding connection. The support plate is provided with two ridges which protrude from its back and include at least one projection which extends towards the other ridge in such manner that the border region of the holder can be inserted between the back of the holder and the projections. The mirror support plate includes a first elastic element and second elastic element, which function as upper and lower elements. The elastic elements are designed so that as the holder is inserted, it elastically deforms the lower one of the first and second elastic elements towards the back of the mirror support plate allowing outer edges of the holder to move into frictional contact with the projections and the back of the support plate and its upper end into interlocking contact with the upper of the first and second elastic elements.

Abstract: The invention relates to a method, particularly suitable for the extraction and enrichment of a volatile component from a liquid, solid or gaseous sample for subsequent introduction into an analytical device, for example, a gas chromatograph. The sample is flushed through a packing of extraction material for extraction of the analytes of interest. A suitable device comprises a syringe with a hollow needle. A chamber is provided between the needle and syringe, in which the extraction material is arranged.

Abstract: An exterior vehicle mirror assembly is disclosed having a holding arm connection with reduced wind turbulence comprising a holding arm having a first end and a second end for attachment to the vehicle. A mirror head is carried by the holding arm having a mirror element. A connection device is disposed between the mirror head to the holding arm having opposing convex sides including a convex mounting side and a convex wind encountering side. The convex mounting side providing an enlarged mounting surface disposed toward the mirror head. The connection device has a contoured cradle for engaging the enlarged mounting surface of the convex mounting side of the holding arm with the opposing convex side of the holding arm being aerodynamically exposed to the on coming wind. A fastener tightly fastens the holding arm and connection device together so that a reliable connection with reduced turbulence is provided for the mirror head and the holding arm.

Abstract: A support arm for a vehicle mirror having at least one mirror head with a mirror pane which includes an upper holding arm (1) made of plastic with an anchoring element (2) for mounting on a vehicle, and a lower holding arm (3) made of plastic with an anchoring element (4) at the bottom for mounting on a vehicle. A one-piece base (6) includes a metal tube (5) whose top or, as the case may be, bottom end is securely connected with the upper and lower holding arm, respectively. The base can also be built in the form of a base plate. In this case, the base has a removable positioning wedge (7) that can be removed from the base to change the angle of at least one mirror pane and/or mirror head carried by the base. The positioning wedge is attached to provide an exterior driver-side rear view mirror, and is removed to provide a passenger-side rear view mirror.