Patents by Inventor Robert Sadofsky

Robert Sadofsky 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).

  • Sealed encapsulation for floppy disk using centrifugal force to flatten disk
    Patent number: 4613966
    Abstract: An optical floppy disk system is described in which the optical disk is enclosed in a flexible housing which is optically transparent. Both the optical disk and its protective housing can be made at very low cost from inexpensive materials. The disk is enclosed within the protective housing and the housing and disk rotate as a unit during operation. The protective housing does not adversely affect the optics of the system.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: September 23, 1986
    Assignee: International Business Machines Corporation
    Inventors: Thomas H. Di Stefano, Robert Sadofsky