Patents by Inventor Lothar Kotulla

Lothar Kotulla 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: 9815188
    Abstract: A handle for a work apparatus has an actuation member for controlling the rpm of a drive motor of the work apparatus. The actuation member is mounted in the handle and has a pressure surface for the fingers of a user hand. In an initial position, the actuation member protrudes with its pressure surface beyond the grip surface of the handle and, in a position for continuous operation of the motor, has dipped into the grip surface so that the pressure surface of the actuation member lies at the level of the grip surface. A recess extends in the longitudinal direction of the handle and is formed in the grip surface. The recess overlaps the pressure surface of the actuation member so that the actuation member is displaced into the handle via the recess to a boost position whereat the pressure surface lies within the grip surface.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: November 14, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Klaus Kaupp, Cornelius Gindele, Lothar Kotulla, Pietro-Leon Schilling
  • Publication number: 20150231779
    Abstract: A handle for a work apparatus has an actuation member for controlling the rpm of a drive motor of the work apparatus. The actuation member is mounted in the handle and has a pressure surface for the fingers of a user hand. In an initial position, the actuation member protrudes with its pressure surface beyond the grip surface of the handle and, in a position for continuous operation of the motor, has dipped into the grip surface so that the pressure surface of the actuation member lies at the level of the grip surface. A recess extends in the longitudinal direction of the handle and is formed in the grip surface. The recess overlaps the pressure surface of the actuation member so that the actuation member is displaced into the handle via the recess to a boost position whereat the pressure surface lies within the grip surface.
    Type: Application
    Filed: February 19, 2015
    Publication date: August 20, 2015
    Inventors: Klaus Kaupp, Cornelius Gindele, Lothar Kotulla, Pietro-Leon Schilling
  • Publication number: 20070205237
    Abstract: A carrying arrangement for a hand-guided power tool has a carrying element to be guided across a shoulder of an operator and a shoulder support arranged slidably in a longitudinal direction on the carrying element. A friction-reducing element for reducing friction between the carrying element and the shoulder support is provided. The shoulder support has a shoulder section and a lateral support section connected to the shoulder section. The carrying element is arranged on the shoulder section and the lateral support section rests against a side of the operator. In this way, excellent force distribution during operation is ensured.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 6, 2007
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Kai-Ulrich Machens, Johannes Menzel, Lothar Kotulla, Christoph Winkler