Patents by Inventor Peter Andrew WOODBERRY

Peter Andrew WOODBERRY 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).

  • Patent number: 10173260
    Abstract: A method and apparatus for casting thin strip including assembling a pair of counter-rotating casting rolls forming a gap between the casting surfaces of the rolls at a nip between the rolls through which metal strip can be cast; assembling side dams adjacent end portions of the rolls to permit a casting pool of molten metal to be formed on the casting surfaces; counter-rotating the rolls such that the casting surfaces each travel inwardly toward the nip to form metal shells on the surfaces of the rolls and deliver a cast strip downwardly from the gap between the rolls with a mushy internal portion; and providing a drive mechanism to oscillate the gap amplitude between the casting rolls between ±5 and ±50 microns at a frequency between 1 and 7 hertz to vary thickness of the mushy internal portion in the cast strip and reduce chatter during casting.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 8, 2019
    Assignee: NUCOR CORPORATION
    Inventors: Peter Andrew Woodberry, Nikolco Nikolovski, Wai Yee Daniel Yuen
  • Publication number: 20170297094
    Abstract: A method and apparatus for casting thin strip including assembling a pair of counter-rotating casting rolls forming a gap between the casting surfaces of the rolls at a nip between the rolls through which metal strip can be casted; assembling side dams adjacent end portions of the rolls to permit a casting pool of molten metal to be formed on the casting surfaces; counter-rotating the rolls such that the casting surfaces each travel inwardly toward the nip to form metal shells on the surfaces of the rolls and deliver a cast strip downwardly from the gap between the rolls with a mushy internal portion; and providing a drive mechanism to oscillate the gap amplitude between the casting rolls between ±5 and ±50 microns at a frequency between 1 and 7 hertz to vary thickness of the mushy in the cast strip and reduce chatter during casting.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 19, 2017
    Applicant: NUCOR CORPORATION
    Inventors: Peter Andrew WOODBERRY, Nikolco NIKOLOVSKI, Wai Yee Daniel YUEN