Patents by Inventor Yulai Zhou

Yulai Zhou 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).

  • PC board locking device
    Patent number: 5395177
    Abstract: A PC board locking device has a support frame fixed on a mother board of a computer or other electronic equipment. The frame has upright grooves for receiving respective PC boards and elongated cylindrical insert rods adjacent each groove. Each insert rod has a plate at one end for engaging a PC board and at least one row of barbs along its length which can engage with respective pawls on the frame so that the height of the rods can be adjusted to engage and retain the PC boards.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: March 7, 1995
    Assignee: Langchao Electronic Information Industrial Group Co.
    Inventor: Yulai Zhou