Patents by Inventor Lian H. Ng

Lian H. Ng 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: 5615874
    Abstract: A media separation system is provided for separating individual sheets from a stack of media. The media separation system has a pressure plate positioned at an angle to support the stack of sheets along an incline. The pressure plate has an upper and lower end, with a relieved area formed in the lower end of the pressure plate. The media separation system also has a pick roller disposed in juxtaposition to the relieved area of the pressure plate to engage and separate a top sheet from the stack of sheets. The pick roller has a width that is more narrow than that of the relieved area in the pressure plate. A spring-like mechanism is provided to urge the pressure plate toward the pick roller to cause the pick roller and the pressure plate to work cooperatively to depress the sheets of media beneath the pick roller into the relieved area of the pressure plate. This causes formation of a primary depression in the stack of sheets.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: April 1, 1997
    Assignee: Hewlett-Packard Company
    Inventors: Baskar Parthasarathy, Pui W. Huang, Yuh W. Sum, Lian H. Ng