Patents by Inventor Max Gopfert

Max Gopfert 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).

  • Electrically actuated piezoelectric control element
    Patent number: 4431934
    Abstract: An electrically actuated control and positioning element formed of a lamella packet as a piezoelectric transducer whose ends are designed to form a power transmission element, and which is capable of transmitting tensile forces. Lamellae spaced from one another engage with parts of the power transmission element, preferably in a dovetailing or interlocking manner. Further active lamellae may be situated in the spaces between the spaced lamellae.
    Type: Grant
    Filed: October 27, 1981
    Date of Patent: February 14, 1984
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Kleinschmidt, Max Gopfert