Patents by Inventor Leon E. Brennan

Leon E. Brennan 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).

  • Aperture mask conveyor and inspection system
    Patent number: 4099607
    Abstract: The aperture mask conveyor and inspection system comprises a pair of belt conveyor assemblies which between them grip and transport an aperture mask from the end of the processing unit to a chute assembly which chute assembly feeds the mask onto a belt conveyor, a densitometer is centrally positioned on the belt conveyor to provide a measure of the amount of light transmitted through the center portion of the mask which is passed beneath the densitometer. After passing under the densitometer the mask is deposited on an adjacent tray.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: July 11, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Leon E. Brennan, Joseph P. Lagermasini, Larry L. Rarig