Abstract: The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part. The ring electrode and corresponding slip ring can be economically produced and have low wear. The electrode is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of the ring are brought together to form a closed ring.

Abstract: The invention relates to an antenna structure for the wide-band transmission of electrical signals, which has a stripline and a probe that can be capacitively or inductively coupled to the stripline, wherein the stripline and the probe are arranged so as to be movable in relation to each other within a specified distance range between the probe and the stripline in the longitudinal direction of the stripline such that electrical signals can be transmitted between the stripline and the probe without contact, wherein the stripline comprises at least one strip electrode facing the probe, a reference electrode, and a dielectric carrier material located between the strip electrode and the reference electrode.

Abstract: The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part, a corresponding slip ring, and a method for producing a corresponding ring electrode. In order to create a ring electrode and a corresponding slip ring, and a method for producing said ring electrode, which ring electrode and corresponding slip ring can be economically produced and have low wear, the electrode according to the invention is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of which are brought together to form a closed ring.

Abstract: A bush of a radial rotary union joint including a hollow-cylindrical main body whose inner cylindrical surface forms a sliding sealing surface divided by a peripherally extending inner groove into a first and a second sliding sealing surface and having a cylindrical outside surface which is divided by a peripherally extending outer groove into a first and a second outside surface. The wall portion separating the inner and the outer grooves has at least one bore connecting the two grooves. The first and the second outside surface can be sealed off by a stationary sealing ring in relation to a housing embracing the bush. The side surfaces of the inner groove are of the same size within a tolerance threshold of +20% and ?35% as the side surfaces of the outer groove.

Abstract: A bush of a radial rotary union joint including a hollow-cylindrical main body whose inner cylindrical surface forms a sliding sealing surface divided by a peripherally extending inner groove into a first and a second sliding sealing surface and having a cylindrical outside surface which is divided by a peripherally extending outer groove into a first and a second outside surface. The wall portion separating the inner and the outer grooves has at least one bore connecting the two grooves. The first and the second outside surface can be sealed off by a stationary sealing ring in relation to a housing embracing the bush. The side surfaces of the inner groove are of the same size within a tolerance threshold of +20% and ?35% as the side surfaces of the outer groove.

Abstract: The present invention relates to a radial rotary transmission leadthrough with a rotating shaft which has at least two substantially axially running channels (4, 4?) which have radial transition openings (5) open to the periphery of the shaft, and with at least one guide bush (2, 2a) tightly surrounding the shaft (1) in the area of the transition openings (5) which has at least one radial feed bore each (6) for every one of the channels (4, 4?) to be connected via the bush (2, 2a), wherein the different channels (4, 4?) have their radial transition openings (5) at different axial positions of the shaft (1).

Abstract: A device for fixing the sliding ring of an axial sliding ring seal for an axial rotary transmission leadthrough to a sliding ring support includes a conically tapered radial outer casing surface of the sliding ring and a holding apparatus designed as a cap nut and has a threaded section which can be screwed onto a matching external thread in the end area of the sliding ring support and also has a holding section which has a conically running internal surface which is matched to the conical casing surface of the corresponding sliding ring. The device has a higher degree of reliability and durability and is sufficiently space-saving to be able to replace existing rotary transmission leadthroughs in which the sliding rings are glued to the sliding ring supports.

Abstract: A radial rotary transfer assembly including at least one rotor (4) and at least one stationary part (1) The rotor (4) has at least two sealing surfaces (16, 18). Two sliding rings (2, 3) having at least two sealing surfaces (15, 17) are arranged between the stationary part and the rotor. The sealing surfaces (15, 17) of the sliding rings (2, 3) co-operate with the rotor sealing surfaces (16, 18), and with at least one radial through-flow duct (10) between the pairs (15, 16; 17, 18) of co-operating sealing surfaces.

Abstract: A turbine wheel for driving rapidly rotating tools, in the form of a circular disk or ring, configured for mounting so as to be rotatable about an axis. Disposed thereon in circular formation are turbine blades having axially parallel front and back faces curved in the radial direction. The front face has a lesser radius of curvature (R3, R4), at least in portions, than the back face. This feature allows the turbine wheel to fit into the conventional turbine housings without relatively major redesign and with, at most, slight modifications. The turbine wheel can achieve higher torque than previous turbine wheels at the required high rotational speeds. Thus, a greater quantity of material can be applied to the spraying dome or a spraying disk without a detrimental braking. Surfaces to be sprayed can be provided with a uniform coat of material in shorter time.

Abstract: The present invention relates to a rotary joint for alternating passage of a lubricating medium and a non-lubricating medium from a stationary (3) to a rotating machine part (1), having a first seal (7) in the form of two flat, substantially circular ring-shaped sliding sealing surfaces (4, 6) arranged so as to slide one on the other, which sealing surfaces (4, 6) are substantially concentric relative to the axis of rotation (10) of the rotating machine part (1) and may be moved at least far enough from one another, in the axial direction, that they do not come into contact with each other during rotation of the rotating machine part (1).

Abstract: The present invention relates to a device for transferring a fluid from a stationary (20) to a rotating machine part (3) by means of a rotary joint (1), which optionally comprises flat radial, conical or cylindrical transition surfaces, wherein an at least partially tubular connecting rod (2) rotating with the rotating machine part (3) is provided thereon for the purpose of conveying the fluid, which rod (2) extends into the area of the rotary joint (1) and which is axially displaceable with respect to the rotary joint (1).

Abstract: A rotary joint for the transfer of pressurized working fluid between a stationary machine part and a rotating machine part, comprising a housing associated with the stationary machine part and a shaft associated with the rotating machine part. The shaft extends into the housing and is tightly surrounded by at least one bush accommodated in the housing. The inner surface of the bush and the circumferential surface of the shaft are provided with sealing faces which slide against each other. The bush comprises at least one radial fluid feed bore which is connected, via an annular channel encircling the shaft, with at least one radial bore in the shaft for conveying pressurized working fluid through the bush to a fluid duct extending axially in the shaft. The fluid feed bore is also connected with the radial bore in the shaft.

Abstract: A rotary fluid transmission between a pair of moving machine parts has frustoconical contact surfaces which are relatively rotatable and juxtaposed with one another and formed with openings or channels which communicate with one another. The contact between them can be direct or via sealing members for the openings or channels. The contact surfaces are provided so that they can axially separate at higher speeds and can contact each other at slower speeds or when the relative rotation terminates.

Abstract: A chuck-actuating spindle assembly has a hollow shaft extending along and rotatable about an axis, a clamping bar parallel to and rotatable with the shaft and axially displaceable relative to the shaft to clamp and release an object carried on the shaft, and a rotary union for transmitting a fluid to the object carried on the shaft. The union has in turn a union housing nonrotatable about the axis, an annular bar seal face on the clamping bar, and a sealing member axially movable in the union housing independently of the bar face, forming a pressurizable space with the union housing, and having an annular member seal face axially confronting and axially engageable with the bar seal face. The seal faces form a portion of a passage extending from the space along the bar and shaft to the object. Rotation of the sealing member about the axis relative to the union housing is inhibited and the member is braced against the union housing axially away from the bar seal face with a predetermined biasing force.