Patents by Inventor Gray Shieh

Gray Shieh 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: 5066238
    Abstract: An electrical socket includes a socket housing which receives conductor pieces that are adapted to be electrically connectable to contact blades of an electrical plug. A rotary plate of a socket cover is provided in the front face of the socket housing. The socket cover further has a shaft projecting rearward from the rotary plate and extending into the socket housing. The socket cover is movable between a closed position, wherein the rotary plate blocks entry into the socket housing, and an open position, wherein entry into the socket housing is permissible, allowing plugging of the electrical plug into the electrical socket to achieve electrical connection between the contact blades and the conductor pieces. A control member engages the rotary plate when the socket cover is in the closed position to prevent rotation of the rotary plate relative to the socket housing.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 19, 1991
    Inventor: Gray Shieh