Patents by Inventor John Shirley Hurst

John Shirley Hurst 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).

  • Amorphous metal continuous flux path transformer and method of manufacture
    Patent number: 8373529
    Abstract: In a three phase transformer core, amorphous metal strips are wound into rings that are combined into frames and assembled to define cores with leg cross sections that have more than 4 sides to facilitate winding transformer windings onto the legs using winding tubes. The amorphous metal layers are secured relative to one another and the core made more rigid using resin, silicon steel layers included in the amorphous metal core, or by using strapping or tying devices.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 12, 2013
    Assignee: Hexaformer AB
    Inventors: John Shirley Hurst, Jurgen Klaus Vollrath
  • Amorphous metal continuous flux path transformer and method of manufacture
    Publication number: 20100194515
    Abstract: In a three phase transformer core, amorphous metal strips are wound into rings that are combined into frames and assembled to define cores with leg cross sections that have more than 4 sides to facilitate winding transformer windings onto the legs using winding tubes. The amorphous metal layers are secured relative to one another and the core made more rigid using resin, silicon steel layers included in the amorphous metal core, or by using strapping or tying devices.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 5, 2010
    Inventors: John Shirley Hurst, Jurgen Klaus Vollrath
  • Lower cost continuous flux path transformer core and method of manufacture
    Publication number: 20090273431
    Abstract: In a continuous flux path transformer core, at least part of the core is implemented in non-grain oriented steel.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 5, 2009
    Inventor: John Shirley Hurst