Patents by Inventor Tobias Rollmann

Tobias Rollmann 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).

  • Hydrostatic drive system with a safety device
    Patent number: 7036308
    Abstract: A hydrostatic drive system (1) has at least one user. A control valve device (3; 4; 5; 6) to control the user is actuated by an actuation signal. A delivery flow regulation device (11) is triggered by a load pressure signal of the user. The drive system has a safety device (20) with a function position (21b) in which the actuation signal is routed to the control valve device (3; 4; 5; 6) and the load pressure signal is routed to the delivery flow regulation device (11), and a safety position (21a) in which the control valve device (3; 4; 5; 6) is discharged by the actuation signal and the delivery flow regulation device (11) by the load pressure signal. The safety device (20) also has a discharge position (21c) in which the connection of the control valve device (3; 4; 5; 6) with the user is discharged.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: May 2, 2006
    Assignee: Linde Aktiengesellschaft
    Inventor: Tobias Rollmann
  • Hydrostatic drive system with a safety device
    Publication number: 20050098030
    Abstract: A hydrostatic drive system (1) has at least one user. A control valve device (3; 4; 5; 6) to control the user is actuated by an actuation signal. A delivery flow regulation device (11) is triggered by a load pressure signal of the user. The drive system has a safety device (20) with a function position (21b) in which the actuation signal is routed to the control valve device (3; 4; 5; 6) and the load pressure signal is routed to the delivery flow regulation device (11), and a safety position (21a) in which the control valve device (3; 4; 5; 6) is discharged by the actuation signal and the delivery flow regulation device (11) by the load pressure signal. The safety device (20) also has a discharge position (21c) in which the connection of the control valve device (3; 4; 5; 6) with the user is discharged.
    Type: Application
    Filed: September 14, 2004
    Publication date: May 12, 2005
    Applicant: Linde Aktiengesellschaft
    Inventor: Tobias Rollmann