Patents by Inventor Xingyun Shen

Xingyun Shen 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).

  • Apparatus and method for cutting sheet material
    Patent number: 7455004
    Abstract: The apparatus for trimming sheet material includes a top knife and an opposing bottom knife for trimming sheet or web material passing between the top and bottom knives. The top knife defines a negative rake angle with a substantially vertical plane passing through a cutting edge of the bottom knife. The negative rake angle may be between about ?10° and ?30° and, more preferably, between about ?12° and ?20°. The top and bottom knives may be disk or block knives.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: November 25, 2008
    Assignee: Alcoa Inc.
    Inventors: Ming M. Li, Hongbing Lu, James M. Rushing, Dennis P. Henninger, Xingyun Shen
  • Apparatus and method for cutting sheet material
    Publication number: 20040173067
    Abstract: The apparatus for trimming sheet material includes a top knife and an opposing bottom knife for trimming sheet or web material passing between the top and bottom knives. The top knife defines a negative rake angle with a substantially vertical plane passing through a cutting edge of the bottom knife. The negative rake angle may be between about −10° and −30° and, more preferably, between about −12° and −20°. The top and bottom knives may be disk or block knives.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 9, 2004
    Inventors: Ming M. Li, Hongbing Lu, James M. Rushing, Dennis P. Henninger, Xingyun Shen
  • Apparatus for cutting sheet material
    Publication number: 20040173074
    Abstract: The apparatus for trimming sheet material includes a top knife and an opposing bottom knife for trimming sheet or web material passing between the top and bottom knives. The top knife defines a negative rake angle with a substantially vertical plane passing through a cutting edge of the bottom knife. The negative rake angle may be between about −10° and −30° and, more preferably, between about −12° and −20°. The top and bottom knives may be disk or block knives.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 9, 2004
    Inventors: Ming M. Li, Hongbing Lu, James M. Rushing, Dennis P. Henninger, Xingyun Shen