US4870520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Read/write head with side winding slot
Assignee: Seagate Technology LLC
•
Filing: 1988-04-18
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Granted: 1989-09-26
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Expires: 2008-04-18
Abstract
Abstract A read/write head for use in a disk drive and including a head body having a vertically extending core slot that extends longitudinally from a front surface of the head body in near proximity to one side thereof. A side winding slot extends horizontally from the same side to the front surface of the head body at a predetermined angle. A ferrite core member is disposed within the core slot to support a core winding in the side winding slot.
Inventors
- 👤 Stephen H. Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:44
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/10; G11B5/105; G11B5/127; G11B5/17
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
An improved read/write head for support on a read/write head arm support in a disk drive in which the read/write head is disposed above or below a horizontally rotating disk, the read/write head comprising: a head body substantially rectangular in configuration and having vertically extensive front and side surfaces, the head body having a vertically extensive core slot disposed in near proximity to one selected side surface and extending longitudinally from the front surface of the head body, and the head body, and the head body having a side winding slot extending from the selected side surface so that the side winding slot intersects only the front surface of the head body and the core slot; a core member supported by the core slot and extensive into the intersection of the core slot and the side winding slot, the core member having a winding bore disposed in the intersection of the core slot and the side winding slot; and a winding supported by the core member extending through the winding bore and disposed substantially within the side winding slot.
Claim 2
Dependent Claim
179 words
An improved read/write head for support on a read/write head arm support in a disk drive in which the read/write head is disposed above or below a horizontally rotating disk, the read/write head comprising: a head body substantially rectangular in configuration and having vertically extensive front and side surfaces, the head body having a vertically extensive core slot disposed in near proximity to one selected side surface and extending longitudinally from the front surface of the head body, and the head body, and the head body having a side winding slot extending from the selected side surface so that the side winding slot intersects only the front surface of the head body and the core slot; a core member supported by the core slot and extensive into the intersection of the core slot and the side winding slot, the core member having a winding bore disposed in the intersection of the core slot and the side winding slot; and a winding supported by the core member extending through the winding bore and disposed substantially within the side winding slot.
Claim 3
Dependent Claim
18 words
The read/write head of claim 1 wherein the head body includes at least one longitudinally extending flying rail.
Claim 4
Dependent Claim
38 words
The read/write head of claim 1 wherein the head body is characterized as having upper and lower horizontal surfaces and wherein the configuration of the upper horizontal surface is identical to the configuration of the lower horizontal surface.
Claim 5
Dependent Claim
31 words
The read/write head of claim 2 wherein the head body is characterized as having at least one exterior horizontal surface which is adapted for connection to the read/write head arm support.
Claim 6
Dependent Claim
38 words
The read/write head of claim 1 wherein the head body is characterized as having upper and lower exterior horizontal surfaces, and the core slot extends vertically through the upper and lower exterior horizontal surfaces of the head body.
Claim 7
Dependent Claim
28 words
The read/write head of claim 1 wherein the side winding slot extends horizontally at an angle of approximately 45 degrees from the selected side surface of the body.
Claim 8
Dependent Claim
22 words
The read/write head of claim 1 wherein the side winding slot extends through at least one exterior horizontal surface of the body.
Claim 9
Dependent Claim
34 words
The read/write head of claim 3 wherein the side winding slot is disposed along the horizontal central axis of the head body so that the head body is symmetrical about its horizontal central axis.
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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) | 1992-09-25 | 1993-03-27 | 1993-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-25 | 1997-03-27 | 1997-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-25 | 2001-03-27 | 2001-09-26 | $7700.00 | Window Closed / Lapsed |