Patents by Inventor Robert Prang

Robert Prang 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).

  • Vibratory screed for a road finisher
    Patent number: 5516231
    Abstract: The invention relates to a vibratory packing plank for a road finisher, having a vibration unit, which comprises a vibration element exhibiting a large-area base plate and coupled to a vibration drive, and a guide plate positioned obliquely towards the base plate, a vibration strip being disposed between the guide plate and the base plate of the vibration unit, which vibration strip is coupled to the vibration drive and provided with a run-in slope.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: May 14, 1996
    Assignee: Ingersoll-Rand Company
    Inventors: Dirk Heims, Robert Prang
  • Road-finishing apparatus with improved control over laying beam
    Patent number: 5044820
    Abstract: The invention relates to a road-finishing machine with a laying beam (2) which is provided with control members (8) for adjusting the height and inclination of the laying beam (2) as well as measuring sensors for this purpose, the output signals of the measuring sensors serving as actual values for adjusters (10, 11) controlling the control members (8) in accordance with desired values which can be predetermined.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: September 3, 1991
    Assignee: ABG-Werke GmbH
    Inventor: Robert Prang
  • Consolidating plank for a highway finishing machine
    Patent number: 4507014
    Abstract: The invention concerns a consolidating plank for a highway finishing machine the basic plank body of which is lengthenable by a manually attachable plank or by an extendible plank. For creating such a high compacting effect that a subsequent following compaction is saved, a stamp unit having at least two stamps is provided, which stamps have a common eccentric support.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: March 26, 1985
    Assignee: ABG-Werke GmbH
    Inventors: Dirk Heims, Hans-Gert Ottermann, Robert Prang