Patents by Inventor Kenneth A. Winchell

Kenneth A. Winchell 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).

  • Vacuum pickup apparatus
    Patent number: 4603897
    Abstract: Apparatus that uses a suction engagement element to transport semiconductor wafers between processing boats and detects when suction engagement has not occurred despite the engagement element having been moved toward a wafer a distance sufficient to enable said engagement, and then adjusts the position of the engagement element relative to the object (e.g., by backing up and trying again or by pivoting the engagement element) to facilitate the suction engagement.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: August 5, 1986
    Assignee: Poconics International, Inc.
    Inventors: Richard F. Foulke, Kenneth A. Winchell