Patents by Inventor Hans Aichele

Hans Aichele 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: 5988222
    Abstract: A pulsation damper for hydraulic circuits has a housing including a bottom, a casing, and a cover, a damper chamber which is sealed from outside and provided with supply and discharge means for a pressure medium, the housing being composed of two parts so that the bottom and the cover are connected with one another to form a single central element, while the casing peripherally surrounds the central element, the central element, and means forming force-free connecting points between the central element and the cover.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: November 23, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Wilhelm Dworak, Hans Aichele, Wolfgang Steudel, Georg-Alois-Hermann Winkes, Bernhard Sacha, Guido Bredenfeld, Olaf Klemd, Werner Steprath
  • Patent number: 4688381
    Abstract: Hydraulic control arrangement for a driven working device particularly mounted on an agricultural vehicle, comprises a hydromotor for driving a working device, a blocking unit having a blocking valve and a pushing piston, a control valve including a control slider which controls the blocking unit and has three control edges, and a control chamber, two working chambers, and two return chambers, a throttle valve having a throttle slider and a spring arranged in a chamber and loading the throttle slider, a working conduit leading from an inlet via the throttle slider, the first control edge of the control slider and the blocking valve to the hydromotor and allowing a load pressure-independent control, a control conduit branching from the working conduit and extending via the third control edge of the control slider, the control chamber and the second return chamber to a tank, and supplied with a control pressure medium in a lowering position of the control slider via the throttle slider, and two throttle points
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: August 25, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Hans Aichele, Walter Beck, Gunther Schwerin