US4476404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible conductor for supplying current to a pivotally movable electrical element
Assignee: Western Digital Singapore Pte Ltd
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Filing: 1983-09-23
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Granted: 1984-10-09
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Expires: 2003-09-23
Abstract
Abstract A flexible conductor strip is provided for connecting a pivotally mounted electrical element, such as the armature of a sector motor, to fixed terminals supplying control signals to the electrical element. The conductor strip includes an arcuate segment having end terminations for connection to the electrical element and to the control signal terminals. The arcuate segment is curved into a generally U-shaped configuration, thereby coinciding substantially with the surface of the frustum of an imaginary right circular cone whose axis extends substantially perpendicular to the pivot axis of the electrical element and whose vertex lies substantially on that pivot axis.
Inventors
- 👤 Perry A. Bygdnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521; H; H02; H02K; H02K41/00; H02K41/02; H02K41/035; H02K41/0352; H02K41/0354; H02K41/0358; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H02K2211/00; H02K2211/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A sector motor for use in connection with a recording head positioning mechanism, or the like, including: a frame; an armature mounted on the frame for pivotal, oscillatory movement relative thereto about an axis of rotation; and a flexible conductor strip for coupling the armature to a source of electrical control signals, the conductor strip having a first end portion including terminations connected to the armature and a second end portion including (i) terminations adapted to be connected to the electrical signal source and (ii) means for attaching the second end portion to the frame, the portion of the conductor strip intermediate the end portions being generally U-shaped and coinciding substantially with the surface of the frustum of an imaginary right circular cone whose axis intersects and extends substantially perpendicular to the axis of rotation of the armature and whose vertex lies substantially on that axis.
Claim 2
Dependent Claim
146 words
A sector motor for use in connection with a recording head positioning mechanism, or the like, including: a frame; an armature mounted on the frame for pivotal, oscillatory movement relative thereto about an axis of rotation; and a flexible conductor strip for coupling the armature to a source of electrical control signals, the conductor strip having a first end portion including terminations connected to the armature and a second end portion including (i) terminations adapted to be connected to the electrical signal source and (ii) means for attaching the second end portion to the frame, the portion of the conductor strip intermediate the end portions being generally U-shaped and coinciding substantially with the surface of the frustum of an imaginary right circular cone whose axis intersects and extends substantially perpendicular to the axis of rotation of the armature and whose vertex lies substantially on that axis.
Claim 3
Dependent Claim
23 words
A sector motor, as defined in claim 2, in which: the second end portion of the conductor strip includes a generally linear extension.
Claim 4
Dependent Claim
23 words
A sector motor, as defined in claim 2, in which: the attaching means comprises a tab projecting from adjacent said second end portion.
References Cited (Backward Citations)
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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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |