Patents by Inventor Timo Zenner

Timo Zenner 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).

  • Swing system and construction machinery or vehicle comprising a swing system
    Patent number: 8776512
    Abstract: A swing system for construction machinery or a vehicle, particularly an excavator or a crane, includes a swing brake for blocking or unblocking a rotational movement of a first portion of the vehicle relative to a chassis portion of the vehicle, and a swing pump and a swing motor are provided for performing the rotational movement. The swing pump can be positioned in a neutral position where no rotational movement of the first portion takes place. At least one brake control actuator is provided for automatically engaging the brake when the swing pump is in its neutral position. The swing system can provide an improved control of the swing movement on a slope and an improved comfort during operation of the swing movement.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: July 15, 2014
    Assignee: Volvo Construction Equipment AB
    Inventors: Frederic Lastre, Timo Zenner
  • SWING SYSTEM AND CONSTRUCTION MACHINERY OR VEHICLE COMPRISING A SWING SYSTEM
    Publication number: 20110314802
    Abstract: A swing system for construction machinery or a vehicle, particularly an excavator or a crane, includes a swing brake for blocking or unblocking a rotational movement of a first portion of the vehicle relative to a chassis portion of the vehicle, and a swing pump and a swing motor are provided for performing the rotational movement. The swing pump can be positioned in a neutral position where no rotational movement of the first portion takes place. At least one brake control actuator is provided for automatically engaging the brake when the swing pump is in its neutral position. The swing system can provide an improved control of the swing movement on a slope and an improved comfort during operation of the swing movement.
    Type: Application
    Filed: February 3, 2009
    Publication date: December 29, 2011
    Applicant: Volvo Construction Equipment AB
    Inventors: Frederic Lastre, Timo Zenner