Patents by Inventor Ralph EBERHARD

Ralph EBERHARD 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: 11168808
    Abstract: A valve device (1) controls media flows of any type by a valve control piston (33) guided in a longitudinally movable manner in a valve housing (3) and controlling a media connection between media connection points (9, 11) in the valve housing (3). One media connection point is a pressure supply inlet (P). Another media connection point is a load outlet (A). The valve control piston (33) is guided in the valve housing (3) with pressure equalization by an equalizing apparatus (35) with respect to the media pressure at the pressure supply inlet (P).
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: November 9, 2021
    Assignee: RSG ELECTRONIC GMBH
    Inventor: Ralph Eberhard
  • Publication number: 20170152964
    Abstract: The invention relates to a valve device (1) for controlling media flows of any type by means of at least one valve control piston (33), which is guided in a longitudinally movable manner in a valve housing (3) and which controls a media connection between at least two media connection points (9, 11) in the valve housing (3), of which at least one media connection point is a pressure supply inlet (P) and at least one other media connection point is a load outlet (A), wherein the valve control piston (33) is guided in the valve housing (3) with pressure equalization by means of at least one equalizing apparatus (35) at least with respect to the media pressure at the respective pressure supply inlet (P).
    Type: Application
    Filed: June 5, 2015
    Publication date: June 1, 2017
    Inventor: Ralph EBERHARD