Patents by Inventor Charles E. Frame, Sr.

Charles E. Frame, Sr. 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).

  • Warning device for a vehicle and trailer coupling system
    Patent number: 5477207
    Abstract: A warning device for a coupling system including a non-mechanical switching device for determining whether a latching mechanism in the coupling system is locked and a signalling device. The switching device providing a first output the latching mechanism is locked and a second output when the latching mechanism is unlocked. The signalling device providing one of a plurality of unique signals to an operator based on the outputs provided by the switching device, wherein each of the plurality of unique signals indicates a unique coupling condition of the coupling system.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: December 19, 1995
    Assignee: C & M Safety Systems, Inc.
    Inventors: Charles E. Frame, Sr., Mark F. Blessing