Abstract: The hub assembly of a disk cartridge has an annular groove formed in its bottom surface. The outer periphery of the annular groove undercuts the bottom surface of the hub assembly to form an annular lip around the outer periphery of the groove. A data storage device designed to receive the disk cartridge has a spindle motor with at least one latch member mounted on the upper portion of the motor via a flexure. The latch member on the spindle motor enters the annular groove on the hub assembly of the disk cartridge when the disk cartridge is inserted into the data storage device. When the spindle motor spins-up to its operating speed, the latch member moves radially outwardly on its flexure and engages the annular lip in the hub assembly, thereby preventing separation of the hub assembly from the spindle motor during rotation.

Abstract: A cartridge for a magnetic disk drive has a clamping mechanism which is actuated as the door to the cartridge is closed when the cartridge is removed from the drive. The door covers the opening through which the cartridge is accessed by read/write heads. When the cartridge is removed from the drive, the mechanism of the present invention clamps the recording disk against the cartridge shell to prevent rattle, which might otherwise damage the recording disk.

Abstract: A crush resistant cartridge case comprises a case shell having left and right halves. Each halve of the case shell contains a rigid insert having a flat portion with a rib extending substantially around the perimeter of the flat portion. The rigid inserts in the left and right halves of the case shell come together when the case shell is closed and provide resistance against crushing.

Abstract: A cartridge for a magnetic disk drive has a clamping mechanism which is actuated as the door to the cartridge is closed when the cartridge is removed from the drive. The door covers the opening through which the cartridge is accessed by read/write heads. When the cartridge is removed from the drive, the mechanism of the present invention clamps the recording disk against the cartridge shell to prevent rattle, which might otherwise damage the recording disk.

Abstract: A crush resistant cartridge case comprises a case shell having left and right halves. Each halve of the case shell contains a rigid insert having a flat portion with a rib extending substantially around the perimeter of the flat portion. The rigid inserts in the left and right halves of the case shell come together when the case shell is closed and provide resistance against crushing.

Abstract: The hub assembly of a disk cartridge has an annular groove formed in its bottom surface. The outer periphery of the annular groove undercuts the bottom surface of the hub assembly to form an annular lip around the outer periphery of the groove. A data storage device designed to receive the disk cartridge has a spindle motor with at least one latch member mounted on the upper portion of the motor via a flexure. The latch member on the spindle motor enters the annular groove on the hub assembly of the disk cartridge when the disk cartridge is inserted into the data storage device. When the spindle motor spins-up to its operating speed, the latch member moves radially outwardly on its flexure and engages the annular lip in the hub assembly, thereby preventing separation of the hub assembly from the spindle motor during rotation.

Abstract: A cartridge for a magnetic disk drive has a clamping mechanism which is actuated as the door to the cartridge is closed when the cartridge is removed from the drive. The door covers the opening through which the cartridge is accessed by read/write heads. When the cartridge is removed from the drive, the mechanism of the present invention clamps the recording disk against the cartridge shell to prevent rattle, which might otherwise damage the recording disk.

Abstract: A magnetic read/write assembly for a flexible disk drive has rails with slots between the ends thereof. These slots provide an air bleed in the air bearing surface of the rails. The air bleed capacity of the slots, the width of the rails and the load force applied by flexures provide optimal width of the rails for stabilizing the media while maintaining a low fly height of the electro-magnetic elements on the media.