Patents by Inventor Jincheng Xu

Jincheng Xu 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: 7140561
    Abstract: An adjustable spray wand is disclosed. The spray wand comprises a spray head body, a swiveling member, a locking mechanism, and a handle. The spray head body is rotatably coupled to the swiveling member. The spray head further has a locking mechanism having a contact arm having a first position allowing the swiveling member to rotate relative to the spray head body and an engagement position engaging the swiveling member and locking the swiveling member in one position. The swiveling member is coupled to a handle with a conduit, which may be coupled to a water source. In operation, water flows from the water source, through the handle, through the swiveling member, through the spray head body, and out of the outlets in a variably selected spray pattern.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: November 28, 2006
    Assignee: L.R. Nelson Corporation
    Inventors: Lawrence P. Heren, Jincheng Xu, Scott Jacobs
  • Publication number: 20050242210
    Abstract: An adjustable spray wand is disclosed. The spray wand comprises a spray head body, a swiveling member, a locking mechanism, and a handle. The spray head body is rotatably coupled to the swiveling member. The spray head further has a locking mechanism having a contact arm having a first position allowing the swiveling member to rotate relative to the spray head body and an engagement position engaging the swiveling member and locking the swiveling member in one position. The swiveling member is coupled to a handle with a conduit, which may be coupled to a water source. In operation, water flows from the water source, through the handle, through the swiveling member, through the spray head body, and out of the outlets in a variably selected spray pattern.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 3, 2005
    Inventors: Lawrence Heren, Jincheng Xu, Scott Jacobs
  • Publication number: 20020126625
    Abstract: The invention proposes an apparatus and method to automatically discover port mapping between neighboring optical nodes in a switched optical network. It can also be used as a diagnostic method to find faulty connections and channels. It is assumed that each node has a switch that can connect any ingress port to any egress port in the node.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 12, 2002
    Inventors: Ling-Zhong Liu, Jim Jincheng Xu, Donald Asquin