Patents by Inventor Shunfeng Liu

Shunfeng Liu 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: 8137095
    Abstract: A device and a method for forming a ceramic ferrule blank are provided. A shaped wire (2) is disposed in a mold cavity (1) for form a blank, a knock pin mold (4) is disposed in a lower opening of the mold cavity (1), an axle hole (5) for the shaped wire (2) to pass through is opened in the knock pin mold (4), two punching half dies (6) and corresponding half die press heads (7) are disposed over the mold cavity (1), a wire groove (8) for receiving the shaped wire (2) is opened on a side of the half die press head (7), one end of the shaped wire (2) is fixed over the knock pin mold (4), and the other end is clipped by a wire clip unit (9).
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: March 20, 2012
    Inventor: Shunfeng Liu
  • Publication number: 20100084774
    Abstract: A device and a method for forming a ceramic ferrule blank are provided. A shaped wire (2) is disposed in a mold cavity (1) for form a blank, a knock pin mold (4) is disposed in a lower opening of the mold cavity (1), an axle hole (5) for the shaped wire (2) to pass through is opened in the knock pin mold (4), two punching half dies (6) and corresponding half die press heads (7) are disposed over the mold cavity (1), a wire groove (8) for receiving the shaped wire (2) is opened on a side of the half die press head (7), one end of the shaped wire (2) is fixed over the knock pin mold (4), and the other end is clipped by a wire clip unit (9).
    Type: Application
    Filed: June 12, 2007
    Publication date: April 8, 2010
    Inventor: Shunfeng Liu
  • Patent number: D771143
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: November 8, 2016
    Inventors: Fang Yu, Shunfeng Liu