Patents by Inventor Matti Schwalk

Matti Schwalk 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).

  • Hand-guided work apparatus and assembly including said hand-guided work apparatus and a support
    Patent number: 9689126
    Abstract: An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 27, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Christian Barth, Markus Hittmann, Thomas Maier, Johann Winterholler, Matti Schwalk, Felix Oberhofer
  • HAND-GUIDED WORK APPARATUS AND ASSEMBLY INCLUDING SAID HAND-GUIDED WORK APPARATUS AND A SUPPORT
    Publication number: 20160208449
    Abstract: An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).
    Type: Application
    Filed: January 21, 2016
    Publication date: July 21, 2016
    Inventors: Christian Barth, Markus Hittmann, Thomas Maier, Johann Winterholler, Matti Schwalk, Felix Oberhofer