Removable disk cartridge for use with a rotary actuated disk drive

Patent 5381402 Issued on January 10, 1995. Estimated Expiration Date:

July 7, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Digital Equipment Corporation

Application

No. 088933 filed on 07/07/1993

US Classes:

720/738, Shutter member360/133For disk

Examiners

Primary: Tupper, Robert S.
Assistant: Ometz, David L.

Attorney, Agent or Firm

Cefalo; Albert P., Brinkman; Dirk

Foreign Patent References

57-208676 JP 12/20/1982
62-103888 JP 05/20/1987
62-154390 JP 07/20/1987

International Class

G11B 023/03

Abstract

A removable disk cartridge for use with a rotary actuated disk drive includes an enclosure having a top, a bottom, and a side connecting the top and bottom. The enclosure has a cutout formed by removal of a portion of the top, removal of a facing portion of the bottom, and removal of a portion of the side connecting the removed top and bottom portions. A disk is mounted for rotation inside the enclosure. The disk is exposed at a top surface, a bottom surface, and an edge. A door is pivotally mounted on the enclosure. The door has a top surface to shield the top surface of the disk, a lower surface to shield the bottom surface of the disk, and a side surface to shield the edge of the disk. The door has a closed position to fully seal the cutout, and the door has an open position to fully expose the cutout. Access to the top surface, bottom surface, and edge of the disk is provided by the exposed cutout.