Patents by Inventor Dietmar Schindler

Dietmar Schindler 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).

  • Device for actuating a hydrostatic drive
    Patent number: 5974800
    Abstract: A device for the operation of a hydrostatic drive (1) having a periodically operable switch valve (2) which connects a resonant pipe (4) connected with the hydrostatic drive (1) for the formation of standing pressure waves in the hydraulic fluid under resonant conditions alternately to a pressure-fluid supply line (5) and to a return line (6). In order to create advantageous control condition, the resonant pipe (4) has a pressure outlet (7) in an oscillation node in the standing pressure waves, and that the switch times of the switch valve (2) be controllable with constant switch frequency.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: November 2, 1999
    Assignee: Mannesmann Rexroth AG
    Inventors: Rudolf Scheidl, Werner Leitner, Gerald Riha, Dietmar Schindler