Patents by Inventor Helmut Rotsch

Helmut Rotsch 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).

  • Milling rotor for processing ground material and a ground milling machine having such a rotor
    Patent number: 8820848
    Abstract: The present invention relates to a milling rotor for processing ground material, comprising a plurality of milling tools which are arranged in a distributed manner over the jacket surface spaced at predetermined distances and according to a predetermined pattern. In order to improve the distribution of the milling material, the milling tools are arranged in the circumferential direction of the milling rotor along parallel imaginary lines which are composed of at least one respective, equally long section of a left-hand and a right-hand helical line.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: September 2, 2014
    Assignee: BOMAG GmbH
    Inventors: Helmut Rötsch, Hans Forster
  • MILLING ROTOR FOR PROCESSING GROUND MATERIAL AND A GROUND MILLING MACHINE HAVING SUCH A ROTOR
    Publication number: 20130033091
    Abstract: The present invention relates to a milling rotor for processing ground material, comprising a plurality of milling tools which are arranged in a distributed manner over the jacket surface spaced at predetermined distances and according to a predetermined pattern. In order to improve the distribution of the milling material, the milling tools are arranged in the circumferential direction of the milling rotor along parallel imaginary lines which are composed of at least one respective, equally long section of a left-hand and a right-hand helical line.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Applicant: BOMAG GmbH
    Inventors: Helmut Rötsch, Hans Forster
  • Vibration tamper
    Patent number: 5645370
    Abstract: A vibration tamper for packing soil has a guide handle elastically hinged on a tamper head of the tamper. The pivot point of the guide handle is located on the tamper head above an imaginary perpendicular extending from the grip area of the handle to the tamper longitudinal axis, and/or the handle has a special distribution of mass with regard to its pivot point.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: July 8, 1997
    Assignee: Bomag GmbH
    Inventors: Arno Zurbes, Helmut Rotsch
  • Road construction machine
    Patent number: D568905
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: May 13, 2008
    Assignee: BOMAG GmbH
    Inventors: Jürgen Heusinger, Roland Loew, Udo Lohse, Helmut Rötsch
  • Road construction machine
    Patent number: D570378
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: June 3, 2008
    Assignee: Bomag GmbH
    Inventors: Jürgen Heusinger, Roland Loew, Udo Lohse, Helmut Rötsch