Patents by Inventor Xiao Yang Wan

Xiao Yang Wan 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: 6488413
    Abstract: A system is described for precise injection molding and creation of fiber optic plastic ferrules or other molded parts. In a described application, a molded plastic part is formed that yields four ferrules. The plastic part has a central hub from which four arms extend, each having a ferrule-carrying portion. The mold has a pair of interengageable halves that mate to form a series of channels and gates for formation of the plastic part. Molten plastic flows from a central chamber through the channels. From each channel, the molten plastic then flows into a fan-shaped gate, a ring-shaped gate and an annular parabolic-shaped gate and finally into a molding chamber for molding the tubular ferrule. The molten plastic is temporarily accumulated by the gating system and then flows into the molding chamber in an evenly distributed manner.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 3, 2002
    Assignee: Corning Cable Systems LLC
    Inventor: Xiao Yang Wan