Patents by Inventor Ewald Böhler

Ewald Böhler 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).

  • Overload-proof pressure sensor
    Patent number: 6561037
    Abstract: The invention pertains to a pressure sensor for a pressure measuring transducer which contains a base body (3), and a pressure-sensitive measuring membrane (7). The membrane is located on the base body (3) and can be subjected to a measurable pressure. The first chamber (10) is arranged between the base body (3) and the measuring membrane (7) in order to protect the measuring membrane (7) if the pressure to be measured exceeds an upper pressure limit. A second chamber (11) is provided to protect the measuring membrane (7) if the pressure to be measured falls short of a lower pressure limit. The second chamber (11) is arranged between the measuring membrane (7) and a contact plate (5) The contact plate is situated on the side of the measuring membrane (7) opposite the base body (3). A bore (6) is provided for subjecting the measuring membrane (7) to pressure.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: May 13, 2003
    Assignee: Vega Grieshaber KG
    Inventors: Ewald Böhler, Jörn Jakob, Manfred Liehr