Patents by Inventor Shou Jun Du

Shou Jun Du 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).

  • Power adapter
    Patent number: 7601023
    Abstract: A power adapter has a main body. A top of the main body defines a recess and an annular sidewall enclosing the recess. The annular sidewall has a sliding recess extending along the circumference of an inner surface thereof. A rotation-proof component defines a rotation-proof portion received in the sliding recess. A plug rotatably and detachably mounted to the main body defines a protruding portion at one side thereof. The protruding portion is capable of reciprocally sliding in the sliding recess and elastically pressing the rotation-proof portion for passing through the rotation-proof portion and then being restrained from reverse rotation because of restoration of the rotation-proof portion.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: October 13, 2009
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Jian Rong Ma, Shou Jun Du