Patents by Inventor Hugh Boggs, JR.

Hugh Boggs, JR. 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).

  • MOTOR CONTROL SYSTEM
    Publication number: 20120319625
    Abstract: In one aspect of the present invention, a motor control system includes a rectifier module enclosed in a first flame-proof enclosure, and having a first input and one or more rectifier circuits configured to convert a first AC voltage at the first input to a DC voltage to be output to a DC bus, and one or more variable-frequency drive (VFD) modules, each VFD module being enclosed in a respective second flame-proof enclosure and having a second input coupled to the DC bus, where each VFD module includes one or more inverter circuits configured to convert the DC voltage on the DC bus to a second AC voltage to be output to one or more motors.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 20, 2012
    Applicant: SANY HEAVY EQUIPMENT, USA R&D INSTITUTE
    Inventors: David G. Thomas, Hugh Boggs, JR., Michael Twigger