Patents by Inventor Daniel John Healey

Daniel John Healey 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).

  • Load break DC power disconnect
    Publication number: 20040027734
    Abstract: An embodiment of the invention is a DC power disconnect having a first mechanical switch for coupling a DC power module to a first rail of a DC bus and a second mechanical switch for coupling the DC power module to a second rail of the DC bus. A first solid-state switch couples the DC power module to the first rail of the DC bus and is positioned in parallel with the first mechanical switch. A second solid-state switch couples the DC power module to the second rail of the DC bus and is positioned in parallel with the second mechanical switch. A controller initiates closing the first solid-state switch and the second solid-state switch prior to changing state of the first mechanical switch and the second mechanical switch.
    Type: Application
    Filed: June 3, 2003
    Publication date: February 12, 2004
    Inventors: Stephen A. Fairfax, Neal B. Dowling, Daniel John Healey, David S. Kolack