Patents by Inventor Alfred Breunig

Alfred Breunig 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: 8464758
    Abstract: The invention relates to a valve arrangement with a continuously variable directional control valve, wherein the valve slide thereof can be adjusted in the direction of five positions in order to control a user in two directions, to carry out a quick motion, to switch into a floating position or to close off the pressure means connection to the user (neutral position).
    Type: Grant
    Filed: November 8, 2008
    Date of Patent: June 18, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Alfred Breunig, Josef Hessdoerfer, Walter Kirsch
  • Publication number: 20100269935
    Abstract: The invention relates to a valve arrangement with a continuously variable directional control valve, wherein the valve slide thereof can be adjusted in the direction of five positions in order to control a user in two directions, to carry out a quick motion, to switch into a floating position or to close off the pressure means connection to the user (neutral position).
    Type: Application
    Filed: November 8, 2008
    Publication date: October 28, 2010
    Inventors: Alfred Breunig, Josef Hessdoerfer, Walter Kirsch
  • Publication number: 20070245889
    Abstract: The invention relates to a hydraulic control arrangement and a pilot-operated pressure relief valve therefor. Said hydraulic control arrangement comprises a differential cylinder provided with a pressure chamber on the piston rod side thereof and another pressure chamber at the bottom thereof which can be connected to a pump or a tank by means of a control valve arrangement in order to actuate the differential cylinder. The pressure in a pressure chamber is defined by a pilot-operated pressure relief valve provided with a pressure switching stage by which means the pressure regulated by the pressure relief valve can be lowered according to the pressure in the other pressure chamber.
    Type: Application
    Filed: June 23, 2005
    Publication date: October 25, 2007
    Applicant: Bosch Rexroth AG
    Inventors: Alfred Breunig, Karl Krug-Kussius, Joern Petersen