Patents by Inventor Joerg Kegeler

Joerg Kegeler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11894757
    Abstract: A coil system, including: pairs of planar coils vertically stacked in a vertical direction, each pair of planar coils including a first planar coil including a first outer turn and a second planar coil including a second outer turn overlapping the first outer turn and laterally offset from the first outer turn; and pairs of vertically stacked thermal conductor tracks, each pair of thermal conductor tracks including a first track and a second track overlapping the first track, laterally offset from the first track, and overlapping the first outer turns of the pairs of planar coils. The pairs of thermal conductor tracks are DC isolated from pairs of planar coils. The first outer turns and the second outer turns of the pairs of planar coils form a first comb-like structure. The plurality of pairs of thermal conductor tracks form a second comb-like structure engaged with the first comb-like structure.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: February 6, 2024
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Publication number: 20210273524
    Abstract: A coil system, including: pairs of planar coils vertically stacked in a vertical direction, each pair of planar coils including a first planar coil including a first outer turn and a second planar coil including a second outer turn overlapping the first outer turn and laterally offset from the first outer turn; and pairs of vertically stacked thermal conductor tracks, each pair of thermal conductor tracks including a first track and a second track overlapping the first track, laterally offset from the first track, and overlapping the first outer turns of the pairs of planar coils. The pairs of thermal conductor tracks are DC isolated from pairs of planar coils. The first outer turns and the second outer turns of the pairs of planar coils form a first comb-like structure. The plurality of pairs of thermal conductor tracks form a second comb-like structure engaged with the first comb-like structure.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 2, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 10225934
    Abstract: A circuit board (01), including at least two electrically conductive layers (02) arranged one above the other and at least one dielectric layer (03), which is arranged between adjacent electrically conductive layers (02), is provided. The circuit board (01) is characterized in particular in that the plate has at least two magnetically conductive layers (05), wherein each magnetically conductive layer (05) is arranged at least indirectly adjacent to an electrically conductive layer (02), and that the circuit board also has vertical recesses for accommodating magnetic vias (08) for connecting the magnetically conductive layers (05) in a specific manner. A method for producing such a circuit board (01) is provided.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: March 5, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 10180156
    Abstract: A connecting element comprising a head and a shaft configured to fasten one or more components to a bearing ring of a rolling-element bearing, wherein the head is configured to adjust to a form of a circumferential groove in the bearing ring to be inserted in the groove, and the shaft is configured to adjust to fasten in a bore of the one or more components.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: January 15, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 10020111
    Abstract: A transformer (01) for transmitting data and/or energy, including a concentric coil pair with a fixed first coil (04) and a second coil (05) which is mounted so as to be rotatable with respect to the first coil (04), wherein the coils (04, 05) are arranged with respect to one another in such a way that they are magnetically coupled. The transformer (01)—is defined, in particular, by the fact that the first and the second coils (04, 05) are embodied as printed circuits on one multi-layered circuit board (02, 03) each, wherein in each case a magnetically conductive layer (07) is attached to the outer layers of the multi-layered circuit boards (02, 03), wherein the magnetically conductive layers (07) are selectively connected to one another by recesses which are formed in the circuit boards (02, 03) and filled with magnetically conductive material.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: July 10, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 10012267
    Abstract: A resolver bearing with an angle sensor to detect the angular position of the bearing rings. The angle sensor includes an annular resolver stator connected to one of the bearing rings and includes a transmission coil and a receiving coil designed as printed circuits on a multilayer printed circuit board. The transmission coil is arranged at least partly within a U-shaped shell core, and the receiving coil is arranged at least partly within and at least partly outside of the shell core. The angle sensor also has a resolver rotor rotationally fixed to the other of the two bearing rings and includes magnetically conductive components. The resolver rotor is arranged at least partly within the U-shaped shell core. A signal can be transmitted between the transmission coil and the receiving coil via a magnetic circuit. An angular position-dependent variable reluctance in the magnetic circuit can be specified by the resolver rotor.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: July 3, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Patent number: 9822820
    Abstract: The invention relates to a sensor arrangement having an angle sensor for the measurement of rotations. The angle sensor is multipolar such that measurements are possible by means of n poles. First of all the angle sensor comprises a sensor ring surrounding an axis of rotation (04) and a material measure which is rotatable relative to said sensor ring. A transmitting coil (27) and a plurality of receiving coils (28) are disposed on the sensor ring. Between the transmitting coil (27) and the receiving coils (28) a magnetic circuit is formed which comprises the material measure and a pot core (17) having two branches (19). To this end the material measure forms a variable reluctance in the magnetic circuit. One of the two branches (19) of the pot core (17) is segment-like, such that said branch comprises ring segments (38). In each case the receiving coils (28) surround one of the ring segments (38). The ring segments (38) each form an arc of a circle having a mean radius (43, 46, 48, 51).
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: November 21, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Joerg Kegeler
  • Publication number: 20170162315
    Abstract: A transformer (01) for transmitting data and/or energy, including a concentric coil pair with a fixed first coil (04) and a second coil (05) which is mounted so as to be rotatable with respect to the first coil (04), wherein the coils (04, 05) are arranged with respect to one another in such a way that they are magnetically coupled. The transformer (01)—is defined, in particular, by the fact that the first and the second coils (04, 05) are embodied as printed circuits on one multi-layered circuit board (02, 03) each, wherein in each case a magnetically conductive layer (07) is attached to the outer layers of the multi-layered circuit boards (02, 03), wherein the magnetically conductive layers (07) are selectively connected to one another by recesses which are formed in the circuit boards (02, 03) and filled with magnetically conductive material.
    Type: Application
    Filed: April 16, 2015
    Publication date: June 8, 2017
    Inventor: Joerg Kegeler
  • Publication number: 20170152894
    Abstract: A resolver bearing with an angle sensor to detect the angular position of the bearing rings. The angle sensor includes an annular resolver stator connected to one of the bearing rings and includes a transmission coil and a receiving coil designed as printed circuits on a multilayer printed circuit board. The transmission coil is arranged at least partly within a U-shaped shell core, and the receiving coil is arranged at least partly within and at least partly outside of the shell core. The angle sensor also has a resolver rotor rotationally fixed to the other of the two bearing rings and includes magnetically conductive components. The resolver rotor is arranged at least partly within the U-shaped shell core. A signal can be transmitted between the transmission coil and the receiving coil via a magnetic circuit. An angular position-dependent variable reluctance in the magnetic circuit can be specified by the resolver rotor.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 1, 2017
    Inventor: Joerg Kegeler
  • Publication number: 20170156210
    Abstract: A circuit board (01), including at least two electrically conductive layers (02) arranged one above the other and at least one dielectric layer (03), which is arranged between adjacent electrically conductive layers (02), is provided. The circuit board (01) is characterized in particular in that the plate has at least two magnetically conductive layers (05), wherein each magnetically conductive layer (05) is arranged at least indirectly adjacent to an electrically conductive layer (02), and that the circuit board also has vertical recesses for accommodating magnetic vias (08) for connecting the magnetically conductive layers (05) in a specific manner. A method for producing such a circuit board (01) is provided.
    Type: Application
    Filed: March 19, 2015
    Publication date: June 1, 2017
    Inventor: Joerg Kegeler
  • Patent number: 9329022
    Abstract: A roller bearing configuration having an angle sensor includes a roller bearing. The Angle sensor an absolute encoder with a sensor ring connected in a rotationally fixed manner to one of the bearing rings of the roller bearing, and a measuring element connected in a rotationally fixed manner to the second bearing ring, wherein coils, namely at least one transmitting coil and at least one receiving coil, are situated on the sensor ring, and the transmitting coil has an axis of symmetry, which is identical to the axis of rotation and is situated in an annular metallic pot core, which has a U-shaped cross section and is concentric with the axis of rotation of the roller bearing, and a receiving coil is situated partially inside and partially outside of the pot core.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 3, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Joerg Kegeler, Juergen Weyh
  • Publication number: 20150337903
    Abstract: The invention relates to a sensor arrangement having an angle sensor for the measurement of rotations. The angle sensor is multipolar such that measurements are possible by means of n poles. First of all the angle sensor comprises a sensor ring surrounding an axis of rotation (04) and a material measure which is rotatable relative to said sensor ring. A transmitting coil (27) and a plurality of receiving coils (28) are disposed on the sensor ring. Between the transmitting coil (27) and the receiving coils (28) a magnetic circuit is formed which comprises the material measure and a pot core (17) having two branches (19). To this end the material measure forms a variable reluctance in the magnetic circuit. One of the two branches (19) of the pot core (17) is segment-like, such that said branch comprises ring segments (38). In each case the receiving coils (28) surround one of the ring segments (38). The ring segments (38) each form an arc of a circle having a mean radius (43, 46, 48, 51).
    Type: Application
    Filed: November 7, 2013
    Publication date: November 26, 2015
    Inventor: Joerg Kegeler
  • Publication number: 20150300412
    Abstract: A compact resolver bearing constructed in a particularly simple manner is provided. The corresponding coils P, S are arranged in the annular chamber formed between the bearing rings, the annular chamber being sealed by two circular ring discs, each of said circular ring discs being non-rotatably mounted on another ring and extending radially in the direction of the other ring while maintaining a slight axial distance A from the respective other circular ring disc. In order to modulate the magnetic flux generated by the toroidal coil P1 in the bearing, the circular ring discs are each provided with a segment made from a magnetically permeable material. The changeable mutual overlapping of the segments during rotation causes the magnetic resistance of the corresponding magnetic circuit M1, M2 to change.
    Type: Application
    Filed: September 4, 2013
    Publication date: October 22, 2015
    Inventor: Joerg Kegeler
  • Publication number: 20130113470
    Abstract: A roller bearing configuration having an angle sensor includes a roller bearing. The Angle sensor an absolute encoder with a sensor ring connected in a rotationally fixed manner to one of the bearing rings of the roller bearing, and a measuring element connected in a rotationally fixed manner to the second bearing ring, wherein coils, namely at least one transmitting coil and at least one receiving coil, are situated on the sensor ring, and the transmitting coil has an axis of symmetry, which is identical to the axis of rotation and is situated in an annular metallic pot core, which has a U-shaped cross section and is concentric with the axis of rotation of the roller bearing, and a receiving coil is situated partially inside and partially outside of the pot core.
    Type: Application
    Filed: April 26, 2011
    Publication date: May 9, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Joerg Kegeler, Juergen Weyh
  • Patent number: 6875079
    Abstract: An inhomogeneous glass ceramic material having a ceramic phase and a glass phase is polished by a method that reduces surface roughness at a preselected temperature to values less than 2 ?. The method includes polishing the surface of the glass ceramic material at a predetermined working temperature with a polishing wheel and/or a suspension and selecting the predetermined working temperature so that differing erosion of the glass phase and the ceramic phase is compensated because of the different thermal expansion coefficients when the glass ceramic material is at the preselected temperature. In the case of the glass ceramic material the working temperature generally should be below the preselected temperature in order to minimize surface roughness.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: April 5, 2005
    Assignee: Schott Glas
    Inventor: Joerg Kegeler
  • Publication number: 20030087591
    Abstract: The method of polishing a surface of a material composed of at least two components, each being present in or on the surface to be polished, includes polishing the surface with at least one of a polishing wheel and a suspension at a predetermined working temperature at which erosion of the at least two different components is compensated, because of different thermal expansion properties of the at least two different components and so that surface roughness of the surface is minimized at an application temperature of the material. When the erosion properties of the components are the same and the thermal expansion properties are different the working temperature corresponds to the later application temperature.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 8, 2003
    Inventor: Joerg Kegeler