Patent US1850309A successfully refreshed from Google Patents.
Patent US4974103A successfully refreshed from Google Patents.
US4974103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High density disc drive with magnetic clutch for use with a sealed removable cartridge
Assignee: EMC Corp
•
Filing: 1988-11-14
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Granted: 1990-11-27
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Expires: 2008-11-14
Abstract
Abstract A disc drive 20 including a spindle motor assembly 42 having a magnetic clutch plate 46 and an actuator 47 receives a hermetically sealed cartridge 22 containing a plurality of discs 72, 74 with associated heads 80, 81 mounted in the cartridge 22. Associated with an arm assembly 84 which supports heads 80, 81 is a component 50 for use with the actuator 47. With the cartridge 22 inserted in the drive 20, the actuator 47 operates to cause the heads 80, 81 to traverse relative to the discs 72, 74 as the spindle motor assembly 42 uses a magnetic field to engage a magnetic plate 77 associated with cartridge 22 in order to spin the discs 72, 74. Data transfer connectors 52, 54 are associated with both the drive 20 and the cartridge 22 in order to allow for the transfer of data between the cartridge 22 and the drive 20.
Inventors
- 👤 Syed H. Iftikar
- 👤 John J. Mandish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:15
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; G11B19/00; G11B19/20; G11B19/2009; G11B21/00; G11B23/00; G11B23/02; G11B23/03; G11B23/0301; G11B23/0318; G11B23/50; G11B23/505; G11B23/507; G11B25/00; G11B25/04; G11B25/043
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
186 words
A disc drive adapted for receiving a sealed removable cartridge containing a disc mounted on a hub arrangement having a magnetic armature plate, and a read/write head mounted in the removable cartridge adjacent to the disc with a first actuator component located within the cartridge and operably connected to the read/write head, wherein said disc drive comprises: a housing including a cartridge receiver means for receiving the cartridge; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said cartridge receiver means said spindle motor means is spaced from the cartridge; said spindle motor means including a magnetic means for magnetically engaging the magnetic armature plate of the cartridge; a second actuator component spaced from the cartridge with the cartridge received in the cartridge receiver means, and electromagnetically coupled to said first actuator component for causing movement of the first actuator component in order to cause the read/write head to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
Claim 2
Dependent Claim
186 words
A disc drive adapted for receiving a sealed removable cartridge containing a disc mounted on a hub arrangement having a magnetic armature plate, and a read/write head mounted in the removable cartridge adjacent to the disc with a first actuator component located within the cartridge and operably connected to the read/write head, wherein said disc drive comprises: a housing including a cartridge receiver means for receiving the cartridge; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said cartridge receiver means said spindle motor means is spaced from the cartridge; said spindle motor means including a magnetic means for magnetically engaging the magnetic armature plate of the cartridge; a second actuator component spaced from the cartridge with the cartridge received in the cartridge receiver means, and electromagnetically coupled to said first actuator component for causing movement of the first actuator component in order to cause the read/write head to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
Claim 3
Dependent Claim
17 words
The disc drive of claim 1 wherein said receiver means is stationary with respect to said housing.
Claim 4
Dependent Claim
29 words
The disc drive of claim 1 wherein said receiver means is positioned to allow the cartridge to slide into the drive into a position adjacent to said spindle motor.
Claim 5
Dependent Claim
18 words
The disc drive of claim 1 wherein said magnetic means includes a multiplicity of sectors having alternating polarities.
Claim 6
Dependent Claim
15 words
The disc drive of claim 1 wherein said second actuator component includes a coil assembly.
Claim 7
Dependent Claim
15 words
The disc drive of claim 1 wherein said second actuator component includes a magnet assembly.
Claim 8
Dependent Claim
17 words
The disc drive of claim 1 wherein said communicating means includes means for communicating an electrical signal.
Claim 9
Dependent Claim
17 words
The disc drive of claim 1 wherein said communicating means includes means for communicating a light signal.
Claim 10
Dependent Claim
17 words
The disc drive of claim 1 wherein said communicating means includes means for communicating a magnetic signal.
Claim 11
Dependent Claim
19 words
The disc drive of claim 1 wherein said communicating means includes a means for sending and receiving infrared signals.
Claim 12
Dependent Claim
13 words
The disc drive of claim 1 wherein said communicating means includes a transformer.
Claim 13
Dependent Claim
181 words
A disc drive adapted for receiving a removable cartridge containing a disc, a transducer mounted adjacent to the disc and a first actuator component, all of which are mounted inside the cartridge with the first actuator component operably coupled to the transducer to move the transducer across the disc, the disc drive comprising: a housing including a cartridge receiver means for receiving the cartridge; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said receiver mechanism, said spindle motor means is spaced from the cartridge; said spindle motor means including means for operatively coupling said spindle motor to the disc; a second actuator component provided in said housing, spaced from the cartridge with the cartridge received in the cartridge receiver means, and electromagnetically coupled to said first actuator component, for causing movement of the first actuator component in order to cause the transducer to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
Claim 14
Dependent Claim
181 words
A disc drive adapted for receiving a removable cartridge containing a disc, a transducer mounted adjacent to the disc and a first actuator component, all of which are mounted inside the cartridge with the first actuator component operably coupled to the transducer to move the transducer across the disc, the disc drive comprising: a housing including a cartridge receiver means for receiving the cartridge; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said receiver mechanism, said spindle motor means is spaced from the cartridge; said spindle motor means including means for operatively coupling said spindle motor to the disc; a second actuator component provided in said housing, spaced from the cartridge with the cartridge received in the cartridge receiver means, and electromagnetically coupled to said first actuator component, for causing movement of the first actuator component in order to cause the transducer to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
Claim 15
Dependent Claim
17 words
The disc drive of claim 12 wherein said receiver means is stationary with respect to said housing.
Claim 16
Dependent Claim
29 words
The disc drive of claim 12 wherein said receiver means is positioned to allow the cartridge to slide into the drive into a position adjacent to said spindle motor.
Claim 17
Dependent Claim
32 words
The disc drive of claim 12 wherein said spindle motor operatively coupling means includes magnetic means adapted for magnetically engaging the disc located in the cartridge for urging the disc to rotate.
Claim 18
Dependent Claim
18 words
The disc drive of claim 15 wherein said magnetic means includes a multiplicity of sectors having alternating polarities.
Claim 19
Dependent Claim
17 words
The disc drive of claim 12 wherein said second actuator component includes first and second coil assembly.
Claim 20
Dependent Claim
15 words
The disc drive of claim 12 wherein said second actuator component includes a magnet assembly.
Claim 21
Dependent Claim
17 words
The disc drive of claim 12 wherein said communicating means includes means for communicating an electrical signal.
Claim 22
Dependent Claim
17 words
The disc drive of claim 12 wherein said communicating means includes means for communicating a light signal.
Claim 23
Dependent Claim
17 words
The disc drive of claim 12 where said communicating means includes means for communicating a magnetic signal.
Claim 24
Dependent Claim
19 words
The disc drive of claim 12 wherein said communicating means includes a means for sending and receiving infrared signals.
Claim 25
Dependent Claim
13 words
The disc drive of claim 12 wherein said communicating means includes a transformer.
Claim 26
Dependent Claim
28 words
The disc drive of claim 1 including: roller means adapted for selectively causing a cartridge to be positioned in the receiver means and ejected from the receiver means.
Claim 27
Dependent Claim
28 words
The disc drive of claim 12 including: roller means adapted for selectively causing a cartridge to be positioned in the receiver means and ejected from the receiver means.
Claim 28
Dependent Claim
181 words
A fixed disc drive including a sealed cartridge containing a disc, a transducer mounted adjacent to the disc and a first actuator component, all of which are mounted inside the cartridge with the first actuator component operably coupled to the transducer to move the transducer across the disc, the disc drive comprising: a housing including a cartridge receiver into which the cartridge is received; means for permanently securing said cartridge in said cartridge receiver; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said receiver, said spindle motor means is spaced from the cartridge; said spindle motor means including means for operatively coupling said spindle motor to the disc; a second actuator component provided in said housing, spaced from the cartridge, and electromagnetically coupled to the first actuator component for causing movement of the first actuator component in order to cause the transducer to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
Claim 29
Dependent Claim
181 words
A fixed disc drive including a sealed cartridge containing a disc, a transducer mounted adjacent to the disc and a first actuator component, all of which are mounted inside the cartridge with the first actuator component operably coupled to the transducer to move the transducer across the disc, the disc drive comprising: a housing including a cartridge receiver into which the cartridge is received; means for permanently securing said cartridge in said cartridge receiver; a spindle motor means provided in said housing for causing the disc to spin, said spindle motor means mounted in said housing such that with the cartridge received in said receiver, said spindle motor means is spaced from the cartridge; said spindle motor means including means for operatively coupling said spindle motor to the disc; a second actuator component provided in said housing, spaced from the cartridge, and electromagnetically coupled to the first actuator component for causing movement of the first actuator component in order to cause the transducer to move relative to the disc; and means for communicating data between the cartridge and said disc drive.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-26 | 1994-05-28 | 1994-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-26 | 1998-05-28 | 1998-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-26 | 2002-05-28 | 2002-11-27 | $7700.00 | Window Closed / Lapsed |