Patents by Inventor Wolfgang Grun

Wolfgang Grun 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: 5303803
    Abstract: A variable dashpot for motor vehicles A cylinder (2) full of vibration-suppressing fluid accommodates a piston (3). The piston is provided with vibration-suppressing valves, is fastened to a piston rod (8), and separates the cylinder into two compartments. The compartments communicate through a bypass. The cross-section of the bypass can be adjusted with a component (11) comprising a stator (12) with windings (13) and an electric motor (10) with a rotor (17). The improvement comprises making it possible to continuously and highly dynamically vary the cross-section of the bypass in a dashpot of the same size. This is attained in that the stator windings are accommodated directly in a recess (9) in the piston rod, which is made out of a material that can be magnetized, and the rotor is provided with permanent magnets (22), activates the adjusting component (11), and is accommodated in a bore in the stator (12).
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: April 19, 1994
    Assignee: August Bilstein GmbH & Co. KG
    Inventors: Wolfgang Grun, Reinhard Holscher, Bodo Futterer, Jurgen Mayer, Peter Wolf
  • Patent number: 4307776
    Abstract: Process and equipment for the exchange of heat between flows of a medium flowing in and out of a building, and facade assemblies in which the process is implemented.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: December 29, 1981
    Inventors: Wolfgang Grun, Ing Grun