Patents by Inventor William E. Cratty

William E. Cratty 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).

  • DC power system for marine vessels
    Publication number: 20040102109
    Abstract: An embodiment of the invention is a power system for a marine vessel including a plurality of power sources. A propulsion power distribution unit is coupled to the plurality of primary power sources. A plurality of propulsion devices are coupled to the propulsion power distribution unit. A weaponry power distribution unit is coupled to the propulsion power distribution unit. A plurality of directed energy weapons are coupled to the weaponry power distribution unit.
    Type: Application
    Filed: September 18, 2003
    Publication date: May 27, 2004
    Inventors: William E. Cratty, Stephen A. Fairfax
  • Power system
    Patent number: 6611068
    Abstract: An exemplary embodiment of the invention is a power system for providing power to a critical load. The system includes a first power source producing sufficient power to supply the critical load and a second power source, independent of said first power source. The second power source produces sufficient power to supply the critical load. The system also includes a rotary device having a first power input circuit and a second power input circuit. The second power source is coupled to the rotary device at the second power input circuit. A transfer switch selectively couples the first power source to the first power input circuit and the second power input circuit.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: August 26, 2003
    Assignee: Sure Power Corporation
    Inventor: William E. Cratty
  • Power system utilizing a DC bus
    Patent number: 6559559
    Abstract: An exemplary embodiment of the invention is a power system including a first power source, a first DC bus coupled to the first power source and a second DC bus coupled to the first power source. A power conditioning device is coupled to the first DC bus and the second DC bus. A load receives power from the power conditioning device.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: May 6, 2003
    Assignee: Sure Power Corporation
    Inventor: William E. Cratty
  • DC ladder bus
    Publication number: 20030020330
    Abstract: An embodiment of the invention is a DC ladder bus having a first positive DC rail and a first negative DC rail defining a first DC bus rail for carrying DC power. A second positive DC rail and a second negative DC rail defined a second DC bus rail carrying DC power. A plurality of rungs are coupled across the first DC bus rail and the second DC bus rail. A generator is coupled to each rung. A plurality of disconnects are associated with each of the rungs to individually isolate each of the rungs from one of the first DC bus rail and the second DC bus rail.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 30, 2003
    Inventors: William E. Cratty, Derek W. Fletcher
  • Power system
    Publication number: 20020135233
    Abstract: An exemplary embodiment of the invention is a power system for providing power to a critical load. The system includes a first power source producing sufficient power to supply the critical load and a second power source, independent of said first power source. The second power source produces sufficient power to supply the critical load. The system also includes a rotary device having a first power input circuit and a second power input circuit. The second power source is coupled to the rotary device at the second power input circuit. A transfer switch selectively couples the first power source to the first power input circuit and the second power input circuit.
    Type: Application
    Filed: July 23, 2001
    Publication date: September 26, 2002
    Inventor: William E. Cratty
  • Power system utilizing a DC bus
    Publication number: 20020014802
    Abstract: An exemplary embodiment of the invention is a power system including a first power source, a first DC bus coupled to the first power source and a second DC bus coupled to the first power source. A power conditioning device is coupled to the first DC bus and the second DC bus. A load receives power from the power conditioning device.
    Type: Application
    Filed: May 31, 2001
    Publication date: February 7, 2002
    Inventor: William E. Cratty
  • Power system
    Patent number: 6288456
    Abstract: An exemplary embodiment of the invention is a power system for providing power to a critical load. The system includes a first power source producing sufficient power to supply the critical load and a second power source, independent of said first power source. The second power source produces sufficient power to supply the critical load. The system also includes a rotary device having a first power input circuit and a second power input circuit. The second power source is coupled to the rotary device at the second power input circuit. A transfer switch selectively couples the first power source to the first power input circuit and the second power input circuit.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: September 11, 2001
    Assignee: Sure Power Corporation
    Inventor: William E. Cratty
  • Power system
    Publication number: 20010001051
    Abstract: An exemplary embodiment of the invention is a power system for providing power to a critical load. The system includes a first power source producing sufficient power to supply the critical load and a second power source, independent of said first power source. The second power source produces sufficient power to supply the critical load. The system also includes a rotary device having a first power input circuit and a second power input circuit. The second power source is coupled to the rotary device at the second power input circuit. A transfer switch selectively couples the first power source to the first power input circuit and the second power input circuit.
    Type: Application
    Filed: January 3, 2001
    Publication date: May 10, 2001
    Inventor: William E. Cratty