US4956733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage media transducer loading/unloading and carriage lock mechanism
Assignee: Tandon Corp
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Filing: 1989-06-08
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Granted: 1990-09-11
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Expires: 2009-06-08
Abstract
Abstract In a magnetic disk storage system incorporated in a removable, portable module for use in a microcomputer system, a hinged separator element having a plurality of angled surfaces is movable between first and second positions. In the first position, the disk storage system is in an operational state with magnetic transducers loaded onto the surfaces of rigid magnetic disks and a carriage which mounts cantilevered beams for the transducers being free to move radially relative to the disks. In the second position, carriage motion is inhibited by the separator element which engages the cantilevered beams to raise the transducers away from the surfaces of the disks and into unloaded positions. A spring loaded trigger member which normally engages the separator element to latch the separator element in either of the first and second positions is momentarily disengaged from the separator element to permit movement of the separator element from the first to the second position by the spring or from the second to the first positions in response to movement of the carriage.
Inventors
- 👤 Warren L. Dalziel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:22
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
262 words
A removable, portable rigid disk drive module for use in a microcomputer system, the module being comprised of an enclosure adapted to be removably installed in a microcomputer system and a disk storage system within the enclosure, the disk storage system including at least one rigid magnetic disk, said at least one disk having opposed surfaces, a cantilevered beam mounted adjacent each surface of said at least one disk, a magnetic transducer mounted on each cantilevered beam, each cantilevered beam normally disposing the associated transducer in a loaded position proximate the associated surface of said at least one disk, and means for moving the cantilevered beams away from the associated surfaces of said at least one disk to place the associated transducers in an unloaded position away from the associated surfaces of said at least one disk, the means for moving the cantilevered beams including a pivotable separator element normally assuming a first position spaced-apart from the cantilevered beams and means for selectively moving the separator element into a second position in which the separator element engages the cantilevered beams to move the cantilevered beams away from their associated disk surfaces to place the transducers in the unloaded position, the means for moving the cantilevered beams further including resilient means coupled to the separator element, means for latching the separator element in the first position and means associated with the latching means for momentarily unlatching the separator element in response to an external command to allow the resilient means to move the separator element from the first position to the second position.
Claim 2
Dependent Claim
262 words
A removable, portable rigid disk drive module for use in a microcomputer system, the module being comprised of an enclosure adapted to be removably installed in a microcomputer system and a disk storage system within the enclosure, the disk storage system including at least one rigid magnetic disk, said at least one disk having opposed surfaces, a cantilevered beam mounted adjacent each surface of said at least one disk, a magnetic transducer mounted on each cantilevered beam, each cantilevered beam normally disposing the associated transducer in a loaded position proximate the associated surface of said at least one disk, and means for moving the cantilevered beams away from the associated surfaces of said at least one disk to place the associated transducers in an unloaded position away from the associated surfaces of said at least one disk, the means for moving the cantilevered beams including a pivotable separator element normally assuming a first position spaced-apart from the cantilevered beams and means for selectively moving the separator element into a second position in which the separator element engages the cantilevered beams to move the cantilevered beams away from their associated disk surfaces to place the transducers in the unloaded position, the means for moving the cantilevered beams further including resilient means coupled to the separator element, means for latching the separator element in the first position and means associated with the latching means for momentarily unlatching the separator element in response to an external command to allow the resilient means to move the separator element from the first position to the second position.
Claim 3
Dependent Claim
91 words
The invention set forth in claim 1, wherein the cantilevered beams are mounted on a carriage which is movable relative to said at least one disk and the means for latching is also operative to latch the separator element in the second position when the separator element is moved to the second position, and further including means for momentarily unlatching the separator element in response to an external command to allow the separator element to be moved to the first position in response to movement of the carriage toward the disk.
Claim 4
Dependent Claim
107 words
The invention set forth in claim 2, wherein the carriage is movable relative to said at least one disk along a carriage axis which is generally radial relative to said at least one disk, said at least one disk is rotatable about an axis of rotation therefor, and the separator element is pivotable about a pivot axis which is generally parallel to and in a fixed location relative to the axis of rotation of said at least one disk, the pivot axis of the separator element being disposed to the side of and spaced-apart from the carriage axis between the carriage and said at least one disk.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |