A data recording cartridge that includes a shell that protects a data recording medium from damage and from particulate contamination is disclosed. When the cartridge is in a closed position, the top shell and bottom shell form a seal to exclude particulate matter from the data recording medium. Because...http://www.google.fr/patents/US6137771?utm_source=gb-gplus-shareBrevet US6137771 - Shutterless data recording cartridge and drive for using same
Shutterless data recording cartridge and drive for using same