Patents by Inventor Sanford H. Greenberg

Sanford H. Greenberg 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).

  • Magnetic shield with cathode ray tube standoff for a computer monitor
    Patent number: 5399939
    Abstract: A shield for a computer monitor comprises a hollow cylindrical magnetic sleeve disposed around at least a portion of the yoke windings of the monitor. The sleeve has a diameter greater than the diameter of the yoke windings. A cathode ray tube (CRT) standoff for the shield provides for ease of shield installation and continued operation of the monitor within specification without impairing image integrity (i.e. distortion, color impurity or brightness). The standoff creates a specific distance (critical threshold) between the glass bell of the CRT and the shield that prevents image distortion that cannot be overcome through adjusments of the monitor controls (critical interference).
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: March 21, 1995
    Assignee: Environmental Services & Products, Inc.
    Inventors: Sanford H. Greenberg, Richard France, Frank Turner