Patents by Inventor Hans-Jurgen Pfisterer

Hans-Jurgen Pfisterer 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: 11008036
    Abstract: A steering system with an actuating device (1), in particular a rear axle steering system, having a spindle drive (3) with a spindle (5) and a spindle nut (4) which is fitted into the housing (2) of the steering system in a positionally fixed but rotatable manner and is driven by an electric motor (9). The electric motor (9) is a vernier motor that drives the spindle drive (3) and is integrated in the spindle drive (3). The actuating device (1) is used for a rear axle steering system of a motor vehicle.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: May 18, 2021
    Assignee: ZF Friedrichshafen AG
    Inventors: Michael Klank, Jens Vortmeyer, Hans-Jürgen Pfisterer, Adrian Riechmann, Christoph Anneken
  • Publication number: 20190092378
    Abstract: A steering system with an actuating device (1), in particular a rear axle steering system, having a spindle drive (3) with a spindle (5) and a spindle nut (4) which is fitted into the housing (2) of the steering system in a positionally fixed but rotatable manner and is driven by an electric motor (9). The electric motor (9) is a vernier motor that drives the spindle drive (3) and is integrated in the spindle drive (3). The actuating device (1) is used for a rear axle steering system of a motor vehicle.
    Type: Application
    Filed: April 27, 2017
    Publication date: March 28, 2019
    Applicant: ZF Friedrichshafen AG
    Inventors: Michael KLANK, Jens VORTMEYER, Hans-Jürgen PFISTERER, Adrian SACCHI, Christoph ANNEKEN
  • Patent number: 7174972
    Abstract: An electrical hand-held power tool includes a non-contacting electrical manual control switch (3) having an operating element (4) and a sensor switch (5), a pivotable carrier (6) which carries a switching element (13) and which is manually controlled by the operating element (4) of the manually control switch (3), the sensor switch (5) being connected with the carrier (6) vibration-free, and pivot transmitting device (7) axially displaceable along the vibration axis A) of a vibrating assembly (2) of the power tool relative to the operating element (4) for pivoting the carrier (6) in response to actuation of the operating element (4).
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: February 13, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ferdinand Kristen, Erwin Manschitz, Hans-Jürgen Pfisterer
  • Publication number: 20060076153
    Abstract: An electrical hand-held power tool includes a non-contacting electrical manual control switch (3) having an operating element (4) and a sensor switch (5), a pivotable carrier (6) which carries a switching element (13) and which is manually controlled by the operating element (4) of the manually control switch (3), the sensor switch (5) being connected with the carrier (6) vibration-free, and pivot transmitting device (7) axially displaceable along the vibration axis A) of a vibrating assembly (2) of the power tool relative to the operating element (4) for pivoting the carrier (6) in response to actuation of the operating element (4).
    Type: Application
    Filed: November 22, 2005
    Publication date: April 13, 2006
    Inventors: Ferdinand Kristen, Erwin Manschitz, Hans-Jurgen Pfisterer
  • Patent number: 6866105
    Abstract: An electrical tool includes a housing having inlet (7) and outlet (8) openings, a brushless electric motor (2) and an inverted rectifier (3) both arranged in the housing (9) between inlet (7) and outlet (8) openings in an air stream (5) of an air volume (6), and a link condensator (10) located in the housing (9) in the air stream (5), with the inverted rectifier (3) being arranged, in the air flow direction, downstream of the link condensator (10) and upstream of the electric motor (2).
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: March 15, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Hans-Jürgen Pfisterer, Holger Cecchin, Walter Wissmach, Christoph Kink, Ferdinand Kristen, Rudolf Bauer, Erwin Manschitz
  • Publication number: 20040206519
    Abstract: An electrical hand tool machine (1) having an assembly (2) vibrating along an axis of vibration (A), a non-contacting electrical manual control switch (3) with an operating means (4) and a sensor switch (5), wherein the sensor switch (5) is connected non-vibrating with an at least pivotable switching means carrier (6), whose axis of pivot (S) is oriented along the axis of vibration (A) and which can be manually controlled by the operating means via a pivot transmitting means (7) that is limited axially displaceable
    Type: Application
    Filed: December 18, 2003
    Publication date: October 21, 2004
    Inventors: Ferdinand Kristen, Erwin Manschitz, Hans-Jurgen Pfisterer