Patents by Inventor Ralf Schenk

Ralf Schenk 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: 9610700
    Abstract: In a hand-held power tool with a drive motor and a clutch connected to the drive motor and having an output part, the drive pinion is fixedly connected to the output part of the clutch so as to be driven by the drive motor for driving a tool. The drive pinion has a first individual part and a second individual part that are fixedly connected to each other. The first individual part has a toothing and the second individual part is connected to the output part of the clutch.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: April 4, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Hittmann, Ralf Schenk, Achim Rethaber
  • Patent number: 8667697
    Abstract: The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (1). The eccentric gear arrangement includes two shearing blades (2, 3) driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link (4, 5) as well as an eccentric wheel (6) having a drive wheel (7) and two eccentrics (8, 9). The eccentric wheel (6) rotates about a rotational axis (10). The two connecting links (4, 5) lie directly above one another. The two eccentrics (8, 9) are arranged on the same side of the drive wheel (7) and engage each in one of the two connecting links (4, 5). The two shearing blades (2, 3) have contact pressure surfaces (11, 12) in the region of their two connecting links (4, 5) and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders (13, 14) are provided which act each on one of the assigned contact pressure surfaces (11, 12).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: March 11, 2014
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Hittmann, Ralf Schenk, Reinhard Friedrich, Günter Mayer
  • Patent number: 8511650
    Abstract: A carburetor assembly includes a carburetor (9) wherein a section of an intake channel (10) is configured. A throttle element and a choke element are pivotally journalled in this intake channel (10). A first coupling element is fixedly connected to the throttle element so as to pivot therewith and a second coupling element is fixedly connected to the choke element so as to pivot therewith. The first and second coupling elements form a blocking arrangement which prevents an engagement of the choke element when the throttle element is not actuated.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: August 20, 2013
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jens-Peter Kern, Arne Jensen, Ralf Schenk, Johannes Lang, Thomas Hilt, Erik Andresen, Steffen Joos, Juner Bytyqi
  • Publication number: 20120036722
    Abstract: In a hand-held power tool with a drive motor and a clutch connected to the drive motor and having an output part, the drive pinion is fixedly connected to the output part of the clutch so as to be driven by the drive motor for driving a tool. The drive pinion has a first individual part and a second individual part that are fixedly connected to each other. The first individual part has a toothing and the second individual part is connected to the output part of the clutch.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 16, 2012
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Markus Hittmann, Ralf Schenk, Achim Rethaber
  • Publication number: 20110179651
    Abstract: The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (1). The eccentric gear arrangement includes two shearing blades (2, 3) driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link (4, 5) as well as an eccentric wheel (6) having a drive wheel (7) and two eccentrics (8, 9). The eccentric wheel (6) rotates about a rotational axis (10). The two connecting links (4, 5) lie directly above one another. The two eccentrics (8, 9) are arranged on the same side of the drive wheel (7) and engage each in one of the two connecting links (4, 5). The two shearing blades (2, 3) have contact pressure surfaces (11, 12) in the region of their two connecting links (4, 5) and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders (13, 14) are provided which act each on one of the assigned contact pressure surfaces (11, 12).
    Type: Application
    Filed: January 28, 2011
    Publication date: July 28, 2011
    Inventors: Markus Hittmann, Ralf Schenk, Reinhard Friedrich, Gunter Mayer
  • Publication number: 20100237516
    Abstract: A carburetor assembly includes a carburetor (9) wherein a section of an intake channel (10) is configured. A throttle element and a choke element are pivotally journalled in this intake channel (10). A first coupling element is fixedly connected to the throttle element so as to pivot therewith and a second coupling element is fixedly connected to the choke element so as to pivot therewith. The first and second coupling elements form a blocking arrangement which prevents an engagement of the choke element when the throttle element is not actuated.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Inventors: Jens-Peter Kern, Arne Jensen, Ralf Schenk, Johannes Lang, Thomas Hilt, Erik Andresen, Steffen Joos, Juner Bytyqi