Patents by Inventor Melvin E. Gabriel

Melvin E. Gabriel 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).

  • Horizontal width control circuit for image display apparatus
    Patent number: 4334173
    Abstract: A horizontal width control circuit for use with an image display apparatus includes first and second variable inductors connected in series and shunt relationship respectively with a horizontal deflection coil. The inductance of the inductors are variable in opposite directions for controlling the extent of horizontal deflection through a relatively large range of values without detuning the horizontal deflection circuits.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: June 8, 1982
    Assignee: Zenith Radio Corporation
    Inventors: Melvin E. Gabriel, Joseph M. Van Baalen