Patents by Inventor Patrick B. Sandell

Patrick B. Sandell 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).

  • Patent number: 5954197
    Abstract: A storage case for a compact optical disc retains trays for the disc in a spring loaded arrangement that is released by a latch mechanism easily activated using one hand. The case is formed by top and bottom portions of alternative configurations. A storage system is provided for storing and displaying the trays. The storage system has a base, and rails which engage slots in the tray. A shipping container is provided for shipping either the tray or the individual compact disc.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: September 21, 1999
    Assignee: Opticord, Inc.
    Inventors: Albert Ditzig, Patrick B. Sandell
  • Patent number: 5505299
    Abstract: A storage case for a compact optical disc retains trays for the disc in a spring loaded arrangement that is released by a latch mechanism easily activated using one hand. The case is formed by top and bottom portions of alternative configurations. By selecting different combinations of configurations, the case provides storage for two, four or six compact discs.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: April 9, 1996
    Assignee: Opticord, Inc.
    Inventors: Albert Ditzig, Patrick B. Sandell
  • Patent number: 4945530
    Abstract: An optical data disc is enclosed in a protective cartridge including a pair of interlocking plastic shells. The shells have integral resilient fastening hooks which are locked by plugs to prevent disassembly. A two-piece sliding door is opened for exposing the disc during a read operation. In one embodiment, the sliding door includes two metal shutters having forward portions stamped with resilient hooks which are permanently retained in an undercut groove formed in a plastic slider engaged in a track defined by two plastic shells. The rear portions of the metal shutters are overlapped by respective shutter retainer strips secured to ledges formed in the shells. The door is urged towards a closed position by a double coil torsion spring providing a substantially constant closing force along the range of travel of the slider. A pivot having detent positions is provided for selectible blocking of a write protect hole formed through the shells.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: July 31, 1990
    Assignee: Opticord, Inc.
    Inventors: Patrick B. Sandell, Albert Ditzig
  • Patent number: 4908817
    Abstract: An optical data disc is enclosed in a protective cartridge including a pair of interlocking plastic shells. The shells have integral resilient fastening hooks which are locked by plugs to prevent disassembly. A two-piece sliding door is opened for exposing the disc during a read operation. In one embodiment, the sliding door includes two metal shutters having forward portions stamped with resilient hooks which are permanently retained in an undercut groove formed in a plastic slider engaged in a track defined by two plastic shells. The rear portions of the metal shutters are overlapped by respective shutter retainer strips secured to ledges formed in the shells. The door is urged towards a closed position by a double coil torsion spring providing a substantially constant closing force along the range of travel of the slider. A pivot having detent positions is provided for selectible blocking of a write protect hole formed through the shells.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: March 13, 1990
    Assignee: Opticord, Inc.
    Inventors: Patrick B. Sandell, Albert Ditzig