Patent US5079659A successfully refreshed from Google Patents.
US5079659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gimbal for supporting a hydrodynamic air bearing slider
Assignee: Seagate Technology LLC
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Filing: 1990-07-06
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Granted: 1992-01-07
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Expires: 2010-07-06
Abstract
Abstract A gimbal for supporting a hydrodynamic air bearing slider over recording medium including a gimbal body having generally co-planar side edges meeting at gimbal corners. Tabs positioned at the gimbal corners are bent out of plane with respect to the side edges. Each tab includes an aperture for accepting a corner of the slider. Each tab has a spring tension providing an inward force on the slider to thereby secure the gimbal to the slider.
Inventors
- 👤 Tracy M. Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:00
CPC Classifications
G; G11; G11B; G11B21/00; G11B21/16
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
76 words
A gimbal for supporting a hydrodynamic air bearing slider over a recording medium, the gimbal comprising: a gimbal body having generally co-planar side edges extending between gimbal corners; and tabs at the gimbal corners bent out of plane with respect to the side edges, each tab having an aperture for accepting a corner of the slider and having a spring tension providing an inward force on the slider to thereby secure the gimbal to the slider.
Claim 2
Dependent Claim
76 words
A gimbal for supporting a hydrodynamic air bearing slider over a recording medium, the gimbal comprising: a gimbal body having generally co-planar side edges extending between gimbal corners; and tabs at the gimbal corners bent out of plane with respect to the side edges, each tab having an aperture for accepting a corner of the slider and having a spring tension providing an inward force on the slider to thereby secure the gimbal to the slider.
Claim 3
Dependent Claim
27 words
The gimbal of claim 1 wherein each tab and aperture has dimensions such that the inward force is applied at a neutral bending axis on the slider.
Claim 4
Dependent Claim
48 words
The gimbal of claim 1 wherein the gimbal body is generally rectangular and the apertures define a rectangle having a length and a width that are larger than the length and width of the slider when the gimbal is a generally planar blank workpiece in an unformed state.
Claim 5
Dependent Claim
43 words
The gimbal of claim 1 wherein the gimbal body is rectangular and the apertures define a rectangle having a length and a width that are smaller than the length and width of the slider when the gimbal is in a non-planar, formed state.
Claim 6
Dependent Claim
27 words
The gimbal of claim 1 wherein the gimbal body comprises a pivot projecting from the gimbal body and positioned generally at the center of the gimbal body.
Claim 7
Dependent Claim
38 words
The gimbal of claim 5 wherein the pivot is offset from the plane generally defined by the side edges such that the apex of the pivot is generally coincident with the plane for point contact with the slider.
Claim 8
Dependent Claim
43 words
The gimbal of claim 1 wherein the gimbal body is generally rectangular and the apertures are generally isosceles right triangles, each triangle comprising first and second legs of substantially equal length which are connected by a vertex and form a generally right angle.
Claim 9
Dependent Claim
18 words
The gimbal of claim 7 wherein the first and second legs are substantially parallel to the side edges.
Claim 10
Dependent Claim
34 words
The gimbal of claim 1 wherein each aperture has two edges that meet at a vertex and form an angle of at least 80 degrees, each vertex for accepting a corner of the slider.
Claim 11
Dependent Claim
47 words
The gimbal of claim 9 wherein the slider is generally rectangular and the vertices define a rectangle having a length and a width which are larger than the length and width of the slider when the gimbal is a generally planar blank workpiece in an unformed state.
Claim 12
Dependent Claim
43 words
The gimbal of claim 9 wherein the slider is generally rectangular and the vertices define a rectangle having a length and a width which are smaller than the length and width of the slider when the gimbal is in a non-planar, formed state.
Claim 13
Dependent Claim
23 words
The gimbal of claim 9 wherein each aperture comprises a relief hole coincident with the vertex for accepting a corner of the slider.
Claim 14
Dependent Claim
39 words
The gimbal of claim 9 wherein each tab comprises a first bend coincident with an innermost edge of the aperture such that the tab and the aperture are bent in a first direction with respect to the side edges.
Claim 15
Dependent Claim
28 words
The gimbal of claim 13 wherein the first bend creates an angle between the tab and the co-planar side edges of approximately 45 degrees to approximately 95 degrees.
Claim 16
Dependent Claim
28 words
The gimbal of claim 13 wherein each tab further comprises a second bend in a second direction opposite to the first direction and substantially coincident with the vertex.
Claim 17
Dependent Claim
43 words
The gimbal of claim 15 wherein the second bend defines a proximal tab portion and a distal tab portion, the second bend creating an angle between the proximal tab portion and the distal tab portion of approximately 0 degrees to approximately 45 degrees.
Claim 18
Dependent Claim
25 words
The gimbal of claim 1 and further comprising a flexure seat having first and second co-planar flexure beams disposed about and supporting a central tongue.
Claim 19
Dependent Claim
27 words
The gimbal of claim 17 wherein the recording medium comprises concentric data tracks and the first and second flexure beams are generally perpendicular to the data tracks.
Claim 20
Dependent Claim
49 words
The gimbal of claim 17 and further comprising a pivot projecting from the central tongue for point contact with the slider, the central tongue being offset from the plane defined by the first and second flexure beams such that the apex of the pivot is coincident with the plane.
Claim 21
Dependent Claim
25 words
The gimbal of claim 19 wherein the central tongue is offset by a plurality of bends substantially parallel to the first and second flexure beams.
Claim 22
Dependent Claim
73 words
The gimbal of claim 17 and further comprising a pivot projecting from the central tongue for point contact with the slider, wherein the central tongue is offset from the plane defined by the first and second flexure beams such that the apex of the pivot is coincident with the plane and wherein the slider comprises first and second recess channels adapted to accept first and second flexure beams, respectively, for free flexure thereof.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |