US4884154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flanged transducer supporting arm for a magnetic head/arm assembly
Assignee: Hitachi Ltd
•
Filing: 1987-09-16
•
Granted: 1989-11-28
•
Expires: 2007-09-16
Abstract
Abstract The invention designed to improve the precision in determining the position of the magnetic head and to enable more stable maintenance of the gap between the transducer and the recording disk is characterized in that the flange provided to the transducer supporting arm is made lower in height on the rigid arm side than on the magnetic head side.
Inventors
- 👤 Shuji Onodera
- 👤 Taichi Sato
- 👤 Kihachiro Tanaka
- 👤 Yokuo Saitoh
- 👤 Hiroshi Daito
- 👤 Yoko Yamada
- 👤 Yuzo Yamaguchi
- 👤 Yoshinori Takeuchi
- 👤 Shigeo Hara
- 👤 Shouichi Setone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:27
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/4806; G11B5/4833; G11B21/00; G11B21/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges, wherein the flanges comprise first flanges of one height extending from the rear end toward the front end to an intermediate position, and second flanges of a second height greater than the one height extending from the front end toward the rear end to the intermediate position, and a step joining each of the first flanges with the respective second flanges at the intermediate position.
Claim 2
Dependent Claim
114 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges, wherein the flanges comprise first flanges of one height extending from the rear end toward the front end to an intermediate position, and second flanges of a second height greater than the one height extending from the front end toward the rear end to the intermediate position, and a step joining each of the first flanges with the respective second flanges at the intermediate position.
Claim 3
Dependent Claim
29 words
A transducer supporting arm according to claim 1, wherein a top surface of the first flanges and a top surface of the second flanges are parallel to each other.
Claim 4
Dependent Claim
19 words
A transducer supporting arm according to claim 1, wherein the heights of the first and second flanges are constant.
Claim 5
Dependent Claim
79 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges having a height which varies along the arm from substantially the rear end to the front end, wherein the flanges are higher in a central portion than at ends thereof.
Claim 6
Dependent Claim
79 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges having a height which varies along the arm from substantially the rear end to the front end, wherein the flanges are higher in a central portion than at ends thereof.
Claim 7
Dependent Claim
42 words
A transducer supporting arm according to claim 4, wherein the flanges increase in height from the front end toward the central portion in a continuous manner and decrease in height from the central portion toward the rear end in a continuous manner.
Claim 8
Dependent Claim
82 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges having a height which varies along the arm from substantially the rear end to the front end, wherein the height of the flanges tapers downwardly from the front end to the rear end.
Claim 9
Dependent Claim
82 words
A transducer supporting arm for use in a magnetic head/arm assembly, comprising a front end for supporting a magnetic transducer, a rear end for mounting to a drive unit of the assembly, side edges between the front end and the rear end, and flanges provided along the side edges having a height which varies along the arm from substantially the rear end to the front end, wherein the height of the flanges tapers downwardly from the front end to the rear end.
References Cited (Backward Citations)
US4167765A
Cited
EP0121057A1
Cited
JPS6074170A
Cited
JPS60136979A
Cited
US4723186A
Cited
EP0208280A2
Cited
US4774610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |