Patents Assigned to LTN Servotechnik GmbH
  • Patent number: 11165210
    Abstract: A slip ring includes a first dielectric carrier body and a second dielectric carrier body, each carrier body having at least one shoulder extending circumferentially along a circle line. In addition, the slip ring includes conductor elements, which have an annular and closed configuration with respect to an axis, at least one conductor element, which is fixed in place on the shoulder of the first dielectric carrier body, and at least one conductor element, which is fixed in place on the shoulder of the second dielectric carrier body. The first dielectric carrier body is arranged at an offset from the second dielectric carrier body in the direction of the axis, so that the shoulder having the at least one conductor element of the first dielectric carrier body and the shoulder having the at least one conductor element of the second dielectric carrier body are located axially across from each other.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 2, 2021
    Assignee: LTN Servotechnik GmbH
    Inventors: Peter Autenzeller, Andreas Strempel
  • Patent number: 10969549
    Abstract: In a device for transmitting optical signals between a first subassembly and a second subassembly, which rotatable about an axis relative to the first subassembly. The first subassembly includes a first optical waveguide, and the second subassembly includes a second optical waveguide. The device includes a first sleeve enclosing the first optical waveguide, a first bushing enclosing the first sleeve, a housing, a second sleeve enclosing the second optical waveguide, a second bushing enclosing the second sleeve. Furthermore, the device includes a bearing arrangement, including at least one first ring and rolling elements, rollingly supported on a conical surface. The housing encloses the first bushing, the second bushing, and the bearing arrangement, the bearing arrangement is axially displaceable relative to the housing, and the second bushing is axially preloaded with respect to the first bushing via the bearing arrangement.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 6, 2021
    Assignee: LTN SERVOTECHNIK GMBH
    Inventor: Peter Autenzeller
  • Patent number: 10895693
    Abstract: In a device for transmitting optical signals between a first sub-assembly having a first lens, a first bearing ring, and a first clamping sleeve, which has a conical surface, and a second structural unit having a second lens, a second bearing ring, a second body, a second clamping sleeve, which has a conical surface, and a clamping device, the first bearing ring and the second bearing ring are associated with a bearing by which the first sub-assembly and the second sub-assembly are connected to each other rotatably about an axis. Arranged in a centered manner in relation to the axis are: the first lens on the first bearing ring with the aid of the first clamping sleeve through a first conical connection, the second lens on the second body with the aid of the second clamping sleeve through a second conical connection, and the second body on the second bearing ring with the aid of a clamping device by a third conical connection.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: January 19, 2021
    Assignee: LTN SERVOTECHNIK GMBH
    Inventors: Peter Autenzeller, Andreas Steinigans
  • Publication number: 20200313377
    Abstract: A slip ring includes a first dielectric carrier body and a second dielectric carrier body, each carrier body having at least one shoulder extending circumferentially along a circle line. In addition, the slip ring includes conductor elements, which have an annular and closed configuration with respect to an axis, at least one conductor element, which is fixed in place on the shoulder of the first dielectric carrier body, and at least one conductor element, which is fixed in place on the shoulder of the second dielectric carrier body. The first dielectric carrier body is arranged at an offset from the second dielectric carrier body in the direction of the axis, so that the shoulder having the at least one conductor element of the first dielectric carrier body and the shoulder having the at least one conductor element of the second dielectric carrier body are located axially across from each other.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: LTN Servotechnik GmbH
    Inventors: Peter AUTENZELLER, Andreas STREMPEL
  • Patent number: 9806482
    Abstract: A slip ring includes a dielectric carrier body having a circumferential lateral surface and radially oriented feed-through leads, a first conductive element, and a second conductive element. In a first section, the conductive elements extend in parallel at an axial offset on the lateral surface in the circumferential direction, and in a second section, they extend in the feed-through leads with a radial directional component. The first sections extend in the circumferential direction across a first angular dimension of less than 360°, so that a discontinuity is present along the circumferential direction of the conductive elements in a second angular dimension. The feed-through leads are arranged such that the second angular dimension of the first conductive element is situated at an offset from the second angular dimension of the second conductive element in the circumferential direction, the first and the second conductive elements being electrically connected to each other.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 31, 2017
    Assignee: LTN SERVOTECHNIK GMBH
    Inventors: Ludwig Angerpointner, Peter Autenzeller
  • Patent number: 9768573
    Abstract: A brush unit for electrically contacting a curved surface of a slip ring includes a brush holder and a resilient brush. The resilient brush is mounted to the brush holder in such a way that the brush is resiliently preloaded between two points at which the brush is supported against the brush holder and exhibits a camber. The brush is in contact with the brush holder between the two points.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: September 19, 2017
    Assignee: LTN SERVOTECHNIK GMBH
    Inventor: Bernhard Bichler
  • Patent number: 9709378
    Abstract: A resolver includes a first assembly having transmitter windings and a first winding of a first transformer. The resolver also includes a second assembly having receiver windings, a first winding of a second transformer, and a first winding of a third transformer. A third assembly of the resolver includes a second winding of the first transformer, a second winding of the second transformer, and a second winding of the third transformer. The three assemblies are rotatable relative to each other about an axis. The windings of the first transformer, the windings of the second transformer, the windings of the third transformer, the transmitter windings, and the receiver windings are arranged opposite each other in each case, separated by a radial gap.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 18, 2017
    Assignee: LTN SERVOTECHNIK GMBH
    Inventors: Hans Logé, Manfred Hick, Ludwig Angerpointner
  • Patent number: 9673892
    Abstract: In a device for transmitting signals on two channels between two sub-assemblies rotatable relative to each other about an axis, a photodetector and a light source are connected via connecting lines to a receiver circuit and transmitter circuit. At least one of the connecting lines has a section extending with a radial directional component. The beam path of one channel extends with an axial directional component radially outside relative to the beam path of the optical signal of the other channel, past the section of the at least one connecting line.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 6, 2017
    Assignee: LTN SERVOTECHNIK GMBH
    Inventors: Ludwig Angerpointner, Peter Autenzeller
  • Patent number: 9304015
    Abstract: A slip-ring unit for transmitting an electric current includes a first component group and a second component group arranged in a manner allowing rotation relative to each other. The slip-ring unit has a first track and a second track, a brush and a slip ring contacting each other over different rotational positions along one of the tracks. The first component group has a first connection terminal and an electric circuit for monitoring conditions, while the second component group has a second connection terminal The electric current is transmittable from the first connection terminal to the second connection terminal over the first track, and an electric voltage is transmittable over the second track to the circuit. The slip-ring unit is configured such that the first track and the second track are connected electrically.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 5, 2016
    Assignees: LTN SERVOTECHNIK GMBH, LEINE LINDE SYSTEMS GMBH
    Inventors: Ludwig Angerpointner, Gerhard Schmid
  • Patent number: 9013178
    Abstract: In a resolver for determining the relative angular position between two subassemblies, each subassembly includes a winding, the winding being situated inside a housing made up of two housing shells. The housing shells have tabs which are oriented with an axial directional component and joined in interlocking manner with axial overlap at a mutual offset in the circumferential direction.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 21, 2015
    Assignee: LTN Servotechnik GmbH
    Inventors: Hans Logé, Andreas Hitzer
  • Patent number: 8616897
    Abstract: A slip-ring unit includes a first and a second group of components which are arranged in a manner allowing rotation relative to each other about an axis. The first group of components includes a slip-ring brush which is secured to a holder that is mounted between two components which are offset relative to each other in the direction of the axis. The second group of components includes at least one slip ring. The holder and at least one of the components each have an effective area by which a form-locking connection is produced between the holder and the at least one component. Forces having a directional component parallel to the axis are transmittable by the form-locking connection.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: December 31, 2013
    Assignee: LTN Servotechnik GmbH
    Inventor: Ludwig Angerpointner
  • Patent number: 8348677
    Abstract: In a slip-ring unit for electrically connecting two components that are rotatable relative to each other, one component is arranged as a first cable, which has a core and a shield. The slip-ring unit includes first, second and third brush elements as well as first, second and third slip bodies. The first slip body has an opening extending through it axially, through which a first cable extends for transmitting the voltage applied on the core. The second brush element is additionally disposed at a radial offset with respect to the third brush element.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: January 8, 2013
    Assignees: LTN Servotechnik GmbH, MD Elektronik GmbH
    Inventors: Ludwig Angerpointner, Norbert Friese
  • Patent number: 7719158
    Abstract: A slip-ring brush includes a holder and a brush element that has three regions. The brush element is joined in the first region to the holder, and exhibits a cross-sectional geometry having a cross-sectional area in the second region, which is predetermined for the contacting with a slip ring. The brush element has the same cross-sectional area in the third region as in the second region. The brush element is additionally arranged such that its third region is disposed between the first region and the second region. The cross-sectional geometry of the brush element in the third region is shaped so that it deviates from the cross-sectional geometry of the second region, to reduce the effective spring stiffness of the brush element.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: May 18, 2010
    Assignee: LTN Servotechnik GmbH
    Inventors: Ludwig Angerpointner, Klaus Drost
  • Patent number: 7307367
    Abstract: A method for manufacturing a slip-ring element having contact rings includes the following steps: machining and/or coating lateral sides of the contact rings; mounting the individual contact rings side-by-side, so that they touch each other at the end face; at least partially filling the inner space formed by the side-by-side-mounted contact rings with an adhesive agent, so that the side-by-side-mounted contact rings are cemented to each other after the adhesive agent has hardened; and complete removal of material from the contact rings in the region where they touch at the end face, so that a peripheral, electrically insulating recess is produced along a circumferential line.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: December 11, 2007
    Assignee: LTN Servotechnik GmbH
    Inventors: Ludwig Angerpointner, Klaus Drost
  • Patent number: 7002269
    Abstract: A device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 21, 2006
    Assignee: LTN Servotechnik GmbH
    Inventor: Ludwig Angerpointer
  • Patent number: 6909217
    Abstract: In a method for producing a slip ring brush, the slip ring brush including a brush element and a printed circuit board. The printed circuit board has a first surface and a second surface and has at least one printed circuit trace as well as at least one bore which penetrates the printed circuit board from the first surface to the second surface. An electrical contact between the brush element and the printed circuit trace is produced by soldering. The brush element is soldered such that solder penetrates from the second surface of the printed circuit board through the bore of the printed circuit board all the way to the brush element at the first surface.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: June 21, 2005
    Assignee: LTN Servotechnik GmbH
    Inventors: Ludwig Angerpointner, Klaus Drost
  • Patent number: 6768233
    Abstract: A device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: July 27, 2004
    Assignee: LTN Servotechnik GmbH
    Inventor: Ludwig Angerpointner
  • Patent number: 6369686
    Abstract: A resolver having a first winding core with a first set of core plates that are laminated to each other and that have a plurality of winding spaces with winding openings that are larger than the diameter. A primary winding wire wound on the first winding core, wherein the winding openings of the first set of core plates are larger in diameter than the diameter of the primary winding wire. A second winding core comprising a second set of core plates that are laminated to each other and that have a plurality of winding spaces with winding openings. A secondary winding wire wound on the second winding core, wherein the winding openings of the second set of core plates are larger in diameter than the diameter of the secondary winding wire. The first set of core plates are rotated with respect to each other in such a way that the remaining total winding opening of the first winding core is less than the diameter of the primary winding wire.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: April 9, 2002
    Assignee: LTN Servotechnik GmbH
    Inventor: Gerhard Pielok