Patents by Inventor Heribert Fullgraf

Heribert Fullgraf 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).

  • Clamping element for storage battery plate stacks
    Patent number: 4501413
    Abstract: A plate stack clamping element is formed of adjacent leaf springs preformed to diverge where they extend beyond the plate stack. Compression of the diverging portions creates large area contact clamping force against the plate stack.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: February 26, 1985
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Joachim Illmann, Heribert Fullgraf