Patents by Inventor David J. Fleming

David J. Fleming 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).

  • Uninterruptible transfer switch
    Patent number: 6630752
    Abstract: An uninterruptible transfer switch (UTS) coupled to two or more power sources and a load, said UTS including switches and an inverter, powered through one of several sources routed through rectifiers, capable of sensing power quality of two or more power sources and automatically switching sources when the primary power source is degraded to a predetermined limit and the switching of sources occurring without appreciable power loss on the load side of the UTS.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: October 7, 2003
    Assignee: Qualmag, Inc.
    Inventors: David J. Fleming, Hassan Yarpezeshkan
  • Uninterruptible transfer switch
    Publication number: 20030048004
    Abstract: An uninterruptible transfer switch (UTS) coupled to two or more power sources and a load, said UTS including switches and an inverter, powered through one of several sources routed through rectifiers, capable of sensing power quality of two or more power sources and automatically switching sources when the primary power source is degraded to a predetermined limit and the switching of sources occurring without appreciable power loss on the load side of the UTS.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 13, 2003
    Inventors: David J. Fleming, Hassan Yarpezeshkan
  • Advanced power distribution system
    Publication number: 20030048005
    Abstract: A system and method for providing power to critical from a plurality of sources. The system provides a means of eliminating harmonics generated by loads from being conducted into the power source(s). Additionally, the system provides power conditioning to sags, surges and spikes produced by incoming sources. Power quality and system status monitoring and control are provided via communication mean such as the Internet.
    Type: Application
    Filed: December 3, 2001
    Publication date: March 13, 2003
    Inventors: Andrew B. Goldin, Hassan Yarpezeshkan, David J. Fleming