Patents by Inventor Daniel E. Zimmerman

Daniel E. Zimmerman 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).

  • Variable position detent mechanism for a control lever
    Patent number: 5979268
    Abstract: A variable position detent mechanism for latching a control lever at an infinite number of operating positions includes a semi-circular member connected to a support so that its axis coincides with the pivot of the control lever. A pair of electric detent coils are connected to the lever at a location adjacent the semi-circular member so that when the detent coils are energized they operate co-axially sandwiching the semi-circular member securing the lever with respect to the semi-circular member.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: November 9, 1999
    Assignee: Caterpillar Inc.
    Inventors: Michael S. Freberg, Anupama N. Reddy, Daniel E. Zimmerman