Patents by Inventor Hans J. Betsch

Hans J. Betsch 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: 5375683
    Abstract: A variable dashpot for motor vehicles. It comprises a vibration-suppressing piston-and-cylinder mechanism. The cylinder contains displacement fluid. The piston divides the cylinder into two displacement compartments. The piston has a piston rod attached to it. The piston is provided with pressure-dependent valves that vary the level of vibration suppression. The vibration-suppression valve system has two vibration-suppressing valves (2) accommodated in alignment in a cylindrical valve housing (1). Each vibration-suppressing valve consists of an axially displaced electromagnetic plunger (5 or 6) that operates in conjunction with at least one outlet (3 or 4) and of at least one pressure-sensitive valve (7 or 8) on stream parallel or in alignment with the plunger.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: December 27, 1994
    Assignees: August Bilstein GmbH & Co. KG, Mercedes Benz AG
    Inventors: Zhen Huang, Hans J. Betsch, Hans Scheerer, Andreas Opara, Walter Schulz, Klaus Schmidt