US5666243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring loaded stacked actuator assembly
Assignee: Seagate Technology LLC
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Filing: 1996-09-03
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Granted: 1997-09-09
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Expires: 2016-09-03
Abstract
Abstract A stacked actuator assembly includes a hub having an axis of rotation, a first member fixed in a first direction along the axis of the hub, a second member fixed in a second opposite direction along the axis of a hub, an actuator arm coupled about the hub between the first and second members and a spring coupled about the hub between the first and second members. The spring axially clamps the plurality of actuator arms between the first and second members.
Inventors
- 👤 George I. Brent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:14
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
A stacked actuator assembly comprising: a hub having an axis of rotation; a first member fixed in a first direction along the axis of the hub; a second member fixed in a second opposite direction along the axis of the hub; an actuator arm coupled about the hub between the first and second members; and a spring coupled about the hub between the first and second members to axially clamp the actuator arm between the first and second members.
Claim 2
Dependent Claim
79 words
A stacked actuator assembly comprising: a hub having an axis of rotation; a first member fixed in a first direction along the axis of the hub; a second member fixed in a second opposite direction along the axis of the hub; an actuator arm coupled about the hub between the first and second members; and a spring coupled about the hub between the first and second members to axially clamp the actuator arm between the first and second members.
Claim 3
Dependent Claim
23 words
The actuator assembly of claim 1 wherein the first member comprises a ring extending about the hub and axially fixed to the hub.
Claim 4
Dependent Claim
18 words
The actuator assembly of claim 2 wherein the first ring comprises a lip integrally extending from the hub.
Claim 5
Dependent Claim
25 words
The actuator assembly of claim 1 wherein the second axially fixed member comprises a ring extending about the hub and axially fixed to the hub.
Claim 6
Dependent Claim
32 words
The actuator assembly of claim 4 wherein the hub includes an external groove circumferentially extending about the hub and wherein the second ring comprises an external snap ring positioned within the groove.
Claim 7
Dependent Claim
13 words
The actuator assembly of claim 1 including a bearing assembly within the hub.
Claim 8
Dependent Claim
13 words
The actuator assembly of claim 1 wherein the spring comprises a belleville washer.
Claim 9
Dependent Claim
101 words
A stacked actuator assembly comprising: a hub having an axis of rotation; a first axial stop extending about the hub and fixed along the axis of the hub; a second axial stop extending about the hub and fixed along the axis of the hub; a plurality of actuator arms coupled about the hub between the first and second axial stops; a spacer coupled about the hub between the plurality of actuator arms; and a spring coupled about the hub between the first and second axial stop to axially clamp the plurality of actuator arms between the first and second axial stops.
Claim 10
Dependent Claim
101 words
A stacked actuator assembly comprising: a hub having an axis of rotation; a first axial stop extending about the hub and fixed along the axis of the hub; a second axial stop extending about the hub and fixed along the axis of the hub; a plurality of actuator arms coupled about the hub between the first and second axial stops; a spacer coupled about the hub between the plurality of actuator arms; and a spring coupled about the hub between the first and second axial stop to axially clamp the plurality of actuator arms between the first and second axial stops.
Claim 11
Dependent Claim
16 words
The actuator assembly of claim 8 wherein the hub includes a bearing assembly within the hub.
Claim 12
Dependent Claim
19 words
The actuator assembly of claim 8 wherein the first axial stop comprises a lip integrally extending from the hub.
Claim 13
Dependent Claim
33 words
The actuator assembly of claim 8 wherein the hub includes an external groove circumferentially extending about the hub and wherein the second axial stop comprises an external snap ring positioned within the groove.
Claim 14
Dependent Claim
13 words
The actuator assembly of claim 8 wherein the spring comprises a belleville washer.
Claim 15
Dependent Claim
116 words
A stacked actuator assembly comprising: an arbor having an outward extending lip at a first end and a circumferentially extending groove at a second end; an external snap ring positioned within the external groove of the arbor; a plurality of actuator arms coupled about the arbor between the lip and the external snap ring; a spacer coupled about the arbor between the plurality of actuator arms; a fan tail coupled about the arbor between the lip and the external snap ring; and a spring coupled about the arbor between the lip and the external snap ring to axially clamp the fan tail and the plurality of actuator arms between the lip and the external snap ring.
Claim 16
Dependent Claim
116 words
A stacked actuator assembly comprising: an arbor having an outward extending lip at a first end and a circumferentially extending groove at a second end; an external snap ring positioned within the external groove of the arbor; a plurality of actuator arms coupled about the arbor between the lip and the external snap ring; a spacer coupled about the arbor between the plurality of actuator arms; a fan tail coupled about the arbor between the lip and the external snap ring; and a spring coupled about the arbor between the lip and the external snap ring to axially clamp the fan tail and the plurality of actuator arms between the lip and the external snap ring.
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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) | 2000-09-08 | 2001-03-10 | 2001-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-08 | 2005-03-10 | 2005-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-08 | 2009-03-10 | 2009-09-09 | $7700.00 | Window Closed / Lapsed |