Patents Assigned to Wittenstein SE
  • Patent number: 10267404
    Abstract: Gearing (1), in particular coaxial gearing or linear gearing, having a toothing (5), a tooth carrier (11) in which there is received a multiplicity of teeth (7) for engagement with the toothing, wherein the teeth (7) are mounted so as to be radially displaceable relative to the tooth carrier (11), a cam disk (20) for the radial drive of the radially displaceably mounted teeth (7), wherein the cam disk (20) has two encircling rims, between which there is arranged a raceway, rolling bodies (23) which are arranged on the running surface between the rims, and a multiplicity of pivot segments (24) which are arranged in encircling fashion on the rolling bearing bodies and which lie in each case by way of a rolling bearing surface against the rolling bodies (23), wherein, on both sides of the rolling bearing surface, there is arranged in each case one rim bearing surface, wherein the two rim bearing surfaces lie at least partially against the rims.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: April 23, 2019
    Assignee: Wittenstein SE
    Inventors: Heiko Schreiber, Michael Schmidt
  • Patent number: 10100913
    Abstract: Disclosed herein is a transmission having a tooth holder for holding teeth of a toothed ring, said teeth being arranged around an axis of rotation of the transmission, wherein the teeth are arranged in the tooth holder in such a way as to be movable and to be guided in a radial direction. The transmission furthermore has a drive element, which is rotatable about the axis of rotation, for driving the teeth in a radial direction, wherein the drive element has a cam contour with lobes in a radial direction. Swivel segments are arranged between the teeth and the drive element. A thrust washer is arranged in the tooth holder, at least on one side in an axial direction of the swivel segments. A method for producing a transmission according to the embodiments described herein is furthermore described.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 16, 2018
    Assignee: WITTENSTEIN SE
    Inventors: Heiko Schreiber, Michael Schmidt, Thomas Bayer
  • Publication number: 20180209530
    Abstract: Gear mechanism (1), in particular coaxial gear mechanism, having an internal gear (3) with an inwardly directed toothing (5), a tooth carrier (11) which is arranged coaxially with respect to the internal gear and in which a multiplicity of teeth (7) for engaging with the toothing (5) are accommodated, wherein the teeth (7) are mounted radially displaceably in the tooth carrier (11), a drive element with a profiling (22) for radially driving the radially displaceably mounted teeth (7), wherein the profiling (22) has, over its circumference, at least two elevations, wherein the gear mechanism is constructed such that there is a positive transmission ratio between a drive via the drive element and an output via the tooth carrier (11).
    Type: Application
    Filed: January 26, 2018
    Publication date: July 26, 2018
    Applicant: WITTENSTEIN SE
    Inventor: Heiko Schreiber
  • Patent number: 10027214
    Abstract: Oscillating drive (1), in particular for driving an output shaft (30) in a rotationally oscillating fashion, having an electric machine which comprises: a rotor (3) which can oscillate about a rotational axis (10) and which comprises a multiplicity of permanent magnet poles (5-8), a stator which comprises a circular winding (12) which is concentric with respect to the rotational axis.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: July 17, 2018
    Assignee: Wittenstein SE
    Inventor: Ingolf Gröning
  • Patent number: 9943345
    Abstract: Mechanotronic implant for use in the human body, with a first element, a second element, a drive unit, which is connected in fixed manner to the first element, wherein the drive unit contains an output unit which is connected to the second element in order to move the second element relative to the first element, an implantable energy receiver connected to the drive unit for wireless powering of the drive unit with energy, and a switch in order to switch the drive unit from a first operating direction to a second operating direction.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: April 17, 2018
    Assignee: WITTENSTEIN SE
    Inventors: Eduard Nill, Jan Friedmann
  • Patent number: 9906046
    Abstract: Method for wirelessly transmitting energy from a primary device (1) to an implantable secondary device (2), wherein the primary device includes a primary coil (11) and the secondary device (2) includes a secondary coil (12) for electromagnetic interaction with the primary coil (11), with a control process which includes: measuring a primary current flowing through the primary coil (11) and a primary voltage applied to the primary coil, calculating a secondary current of the secondary coil (12) and a secondary voltage of the secondary coil (12) on the basis of the measured primary current and the measured primary voltage, comparing the calculated secondary current with a desired secondary current and/or the calculated secondary voltage with a desired secondary voltage, predefining a desired primary current and a desired primary voltage on the basis of the comparison, and operating the primary coil with the desired primary voltage and the desired primary current in order to transmit energy to the secondary coil
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 27, 2018
    Assignee: Wittenstein SE
    Inventor: Jan Friedmann
  • Patent number: 9820562
    Abstract: Toothed rack brush for cleaning a toothed rack of a toothed rack gear, with a toothed rack, a brush head with a plurality of bristles, which is rotationally arranged about a rotational axis, aligned in parallel to the toothed rack in order to carry out a rotational movement and is arranged in a linearly moveable manner to carry out a relative longitudinal movement relative to the toothed rack, a synchronization device for synchronizing the rotational movement with the longitudinal movement.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: November 21, 2017
    Assignee: WITTENSTEIN SE
    Inventor: Axel Wörner
  • Patent number: 9768648
    Abstract: Rotor, in particular permanent magnet rotor, for an electric machine, having a magnet support, a plurality of magnets which are arranged on the magnet support, and a rotor core which is arranged between a shaft and the magnet support, wherein the rotor core comprises plastic.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 19, 2017
    Assignee: Wittenstein SE
    Inventor: Daniel Fehn
  • Publication number: 20170252143
    Abstract: Receiver (1), in particular an implantable receiver (1) for transmitting energy to an implant, with a multi-layer circuit board comprising a plurality of electrically conductive layers (11-16), wherein the circuit board comprises an outer coil area and a multi-layer inner area enclosed by the coil area, a coil which is integrally incorporated at least partially in the layers (11-16) of the circuit board in the coil area, wherein the number of the layers (11-16) of the circuit board is smaller within this inner area than in the coil area.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 7, 2017
    Applicant: Wittenstein SE
    Inventors: Michael Matthes, Sebastian Hammel
  • Patent number: 9735638
    Abstract: A rotor, in particular a permanent magnet rotor, for an electrical machine, with a magnet carrier arranged concentrically with an axis of the rotor, wherein the magnet carrier has protrusions on its outer face, a number of magnets arranged on the outer face of the magnet carrier, which are arranged in the peripheral direction of the magnet carrier side-by-side and spaced apart from one another on the magnet carrier, wherein the magnets in each case are arranged between the protrusions, and plastic, which in each case is arranged between the magnets and at least partially encloses the protrusions.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 15, 2017
    Assignee: WITTENSTEIN SE
    Inventors: Christian Herz, Ingolf Gröning, Kay-Horst Dempewolf
  • Publication number: 20170138457
    Abstract: Gear mechanism (1), in particular coaxial gear mechanism or linear gear mechanism, having a toothing system (40), a tooth carrier with radially oriented guides, teeth (25, 27) which are received in the guides for engagement with the toothing system, the teeth (25, 27) being mounted in the guides such that they can be displaced radially relative to the tooth carrier in the direction of their longitudinal axis, a cam disk (3) for radially driving the teeth (25, 27), the cam disk having a circumferential profiling, rolling bodies (15, 17) which are arranged on the profiling, and a plurality of pivoting segments (19) for mounting the teeth (25, 27), the pivoting segments being arranged on the rolling bodies (15, 17), the rolling bodies (15, 17) being arranged on the profiling in at least two rolling body rows which are parallel in the circulating direction of the cam disk.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: Wittenstein SE
    Inventors: Heiko Schreiber, Michael Schmidt
  • Publication number: 20170138456
    Abstract: Gear mechanism, in particular coaxial gear mechanism or linear gear mechanism, having a toothing system, a tooth carrier with radially oriented guides, teeth which are received in the guides for engagement with the toothing system, the teeth being mounted in the guides such that they can be displaced radially relative to the tooth carrier in the direction of their longitudinal axis, a cam disk for radially driving the teeth, the tooth carrier comprising a first tooth carrier part and a second tooth carrier part.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: Wittenstein SE
    Inventors: Wilhelm Dorner, Michael Lesch, Andreas Kümmeth, Frank Michel, Heiko Schreiber, Thomas Wilhelm
  • Patent number: D795934
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: August 29, 2017
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D797173
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: September 12, 2017
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D798928
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: October 3, 2017
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D808451
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 23, 2018
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D809039
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 30, 2018
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D821315
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 26, 2018
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D821470
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 26, 2018
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner
  • Patent number: D854498
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: July 23, 2019
    Assignee: Wittenstein SE
    Inventor: Siegfried Ebner