Patents by Inventor Guillermo S. M. Robles

Guillermo S. M. Robles 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 tape cartridge with second generation leader block and leader block pin
    Patent number: 5379167
    Abstract: A new generation magnetic tape cartridge of the type having a leader block is provided along with a new generation leader block pin so as to prevent interlocking with respect to prior art leader blocks and leader block pins. The magnetic tape cartridge is a generally rectangular container which has four corners. One of the corners of the container is beveled and is provided with a well to receive the new generation leader block in a nested position. The new generation leader block has a notch which has top, bottom and middle portions. A cross section of the middle portion of the notch is smaller than the cross section of the bottom portion of the notch, and the cross section of the top portion of the notch is smaller than the cross section of the middle portion of the notch. The cross section of the bottom portion of the notch is defined by a circular arc of more than 180.degree. for receiving and capturing a new generation leader block pin.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: January 3, 1995
    Assignee: International Business Machines Corporation
    Inventors: Guillermo S. M. Robles, Michael L. Sendelweck