Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1994-10-18
1997-07-22
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9902, 369 772, G11B 1704, G11B 1918
Patent
active
056508913
ABSTRACT:
A data storage device for receiving a removable disk cartridge comprises first and second members movably mounted in the data storage device, each performing a respective function within the disk drive. A first spring coupled to the first movable member biases that member in a first direction. A second spring coupled to the second movable member biases that member in the same direction. A single, electro-mechanical device, which has a drive shaft capable of moving between extended and retracted positions, is mounted in the data storage device. The first and second movable members are arranged with respect to the drive shaft such that an operating end of the drive shaft engages and moves the second member a predetermined distance to an intermediate position of the drive shaft before engaging the first member. A first current applied to the electro-mechanical device moves the drive shaft against the biasing force of the second spring, but is insufficient to move the drive shaft against the combined forces of both springs. Thus, only the second member is moved upon application of the first current. A second, larger current moves the drive shaft against the biasing force of both springs, thus causing the first member to move. By selectively applying the two currents, the second member can be moved independently of the first member.
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Nicklos Carl F.
Thayne Mark S.
Iomega Corporation
Levy Stuart S.
Ometz David L.
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