US5214550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature removable rigid disk drive and cartridge system
Assignee: Mitsubishi Electric Corp
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Filing: 1991-03-22
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Granted: 1993-05-25
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Expires: 2011-03-22
Abstract
Abstract A miniature removable rigid disk drive and cartridge including a removable, self-contained hard disk storage device. The disk drive includes mechanical and electrical components that act in conjunction with components in the disk cartridge when it is placed within the disk drive. The combination of drive and cartridge function as a complete and separate hard disk storage unit within the computer, but with the disk cartridge readily removable therefrom. The disk drive and disk cartridge act in conjunction to form a complete miniature removable rigid disk drive and cartridge system. Because the disk and heads are mounted on the same base within the disk cartridge, interchangeability problems are eliminated. More specifically, there can be no misalignment of the head and disk because both are implemented within a common device. Additionally, because the disk cartridge is designed to occupy the least possible volume, it is easily transportable. Moreover, the small size of the disk cartridge makes it ideal for both the main storage and the backup files for a computer system. And, despite the small size and transportability of the cartridge, it retains the capacity and access speed of a normal rigid disk, as well as the added reliability and ruggedness inherent in rigid disk devices.
Inventors
- 👤 John R. Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/12; G11B33/121; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/03; G11B17/04; G11B17/041; G11B17/043; G11B25/00; G11B25/04; G11B25/043
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
197 words
A miniature removable rigid disk drive and cartridge system comprising: disk drive means including circuit board means having associated system operation and control electronic components mounted thereon and interconnected by circuit traces thereof; cartridge receiving, positioning and ejecting means; disk rotating means including a first rotatable magnetic coupling element for driving a cartridge-carried data storage disk means; disk-read/write actuator means including a second rotatable magnetic coupling element for actuating a cartridge-carried read/write assembly; first connector means carried by said circuit board means for communicatively engaging and coupling information to and from a disk cartridge; and interface means for interconnecting said electronic components to an external computing means; and cartridge means for insertion into said cartridge-receiving positioning and ejecting means and including disk means for containing stored information; disk carriage means including a first rotatable hub magnetically engageable with aid first coupling element for drivably coupling said disk carriage means to said disk rotating means; read/write means including a second rotatable hub magnetically engageable with said second coupling element for drivably coupling said read/write means to said actuator means; and second connector means for engaging said first connector means and coupling information to and from said read/write means.
Claim 2
Dependent Claim
197 words
A miniature removable rigid disk drive and cartridge system comprising: disk drive means including circuit board means having associated system operation and control electronic components mounted thereon and interconnected by circuit traces thereof; cartridge receiving, positioning and ejecting means; disk rotating means including a first rotatable magnetic coupling element for driving a cartridge-carried data storage disk means; disk-read/write actuator means including a second rotatable magnetic coupling element for actuating a cartridge-carried read/write assembly; first connector means carried by said circuit board means for communicatively engaging and coupling information to and from a disk cartridge; and interface means for interconnecting said electronic components to an external computing means; and cartridge means for insertion into said cartridge-receiving positioning and ejecting means and including disk means for containing stored information; disk carriage means including a first rotatable hub magnetically engageable with aid first coupling element for drivably coupling said disk carriage means to said disk rotating means; read/write means including a second rotatable hub magnetically engageable with said second coupling element for drivably coupling said read/write means to said actuator means; and second connector means for engaging said first connector means and coupling information to and from said read/write means.
Claim 3
Dependent Claim
102 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1, wherein said cartridge receiving, positioning and ejecting means includes an elevator assembly for receiving said cartridge at one position and for transporting said cartridge to a second position wherein said first and second connector means are communicatively connected together, said first coupling element is spaced a predetermined coupling distance from said first hub allowing said disk rotating means to drive said disk means, and said second coupling element is spaced a predetermined coupling distance from said second hub allowing said actuator means to actuate said read/write head means.
Claim 4
Dependent Claim
31 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1 wherein said read/write means includes a plurality of read/write heads for transferring information to/from said disk means.
Claim 5
Dependent Claim
59 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1 wherein said cartridge means includes a housing having disk-receiving pockets formed in the interior side walls thereof for receiving the outer extremities of said disk means such that the width of said cartridge means is only slightly greater than the diameter of said disk means.
Claim 6
Dependent Claim
35 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1 wherein said first and second hubs are surrounded by magnetic seals for preventing contamination of the interior of said cartridge means.
Claim 7
Dependent Claim
37 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1 wherein said first connector means is an elastomeric connector having a first plurality of contacts for resiliently engaging a second plurality of contacts.
Claim 8
Dependent Claim
37 words
A miniature removable rigid disk drive and cartridge system as recited in claim 6 wherein said second connector means is an elastomeric connector having a second plurality of contacts for resiliently engaging said first plurality of contacts.
Claim 9
Dependent Claim
31 words
A miniature removable rigid disk drive and cartridge system as recited in claim 1 wherein said read/write means includes at least one read/write head for transferring information to/from said disk means.
References Cited (Backward Citations)
US4359762A
Cited
US4965691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |