Patents by Inventor Robert A. Edgar, II

Robert A. Edgar, II 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).

  • Diagnostic readout for operation of a crane
    Patent number: 6994223
    Abstract: A programmable control system for a crane that senses a hydraulic pressure of the lift mechanism, and controls the movements of the crane apparatus as a function of the magnitude of the hydraulic pressure. As the status conditions of the crane change, sense switches relay such information to a programmable controller and error codes are generated and presented to the operator. The control system can respond to the states of the sense switches and override wireless command inputs to the control system.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 7, 2006
    Assignee: Auto Crane Company
    Inventors: Robert A. Edgar, II, Randall J. Nobles