Patent ID: 6147962
Filing Date: 2000-11-14
Classification: G11B

Abstract:
A data storage cartridge for use with a drive having a drive spindle, the data storage cartridge comprising:a shell defined by a cover and a base;a data storage disc maintained within the shell between the cover and the base, the data storage disc including a central portion; anda restraining mechanism which operates to restrain the central portion of the data storage disc against the shell when the data storage disc is in a non-operating position; and wherein when the data storage disc is in an operating position, the restraining mechanism is disengaged from restraining the disc by the drive spindle independent of a shutter mechanism, wherein the restraining mechanism includes a spring mechanism operably positioned between the shell and the data storage disc for biasing the data storage disc against the shell when the data storage disk is in the non-operating position, the restraining mechanism further including a retention mechanism positioned over the spring mechanism, wherein the spring mechanism biases the retention mechanism against the data storage disc when the data storage disk is in the non-operating position, wherein the retention mechanism is generally cup-shaped and including outer walls surrounding the spring mechanism.