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US4535210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyswitch stabilizing device
Assignee: Illinois Tool Works Inc
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Filing: 1984-04-18
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Granted: 1985-08-13
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Expires: 2004-04-18
Abstract
Abstract An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base, which has one or more unitary, substantially rigid members, which members are movably attached to the actuator at a first end and have a gripping means at a second end for slidingly gripping a free edge of the base.
Inventors
- 👤 Charles Shedore
- 👤 Stanley E. Filipiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:07
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/12; H01H3/122
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base, said base having a top surface and a bottom surface, said apparatus comprising one or more unitary, substantially rigid members; said one or more members being movably attached to said actuator at a first end and having a gripping means at a second end for slidingly gripping said base by engaging said top surface and said bottom surface substantially adjacent a free edge of said base, said gripping means slidingly bearing against at least one of said top surface and said bottom surface in response to said operational movement of said actuator.
Claim 2
Independent Claim
108 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base, said base having a top surface and a bottom surface, said apparatus comprising one or more unitary, substantially rigid members; said one or more members being movably attached to said actuator at a first end and having a gripping means at a second end for slidingly gripping said base by engaging said top surface and said bottom surface substantially adjacent a free edge of said base, said gripping means slidingly bearing against at least one of said top surface and said bottom surface in response to said operational movement of said actuator.
Claim 3
Dependent Claim
63 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base as recited in claim 1 wherein said gripping means comprises a yoke, said yoke having at least one pair of legs joined by a bight, said base being slidingly grippingly engaged between said at least one pair of legs and said free edge extending toward said bight.
Claim 4
Dependent Claim
90 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base as recited in claim 1 wherein said gripping means comprises a first leg having a first axis and a second leg having a second axis, said first axis being displaced a distance from said second axis, said distance being appropriate to enable said base to be received between said first leg and said second leg in slidingly gripping relation, said first leg engaging said top surface and said second leg engaging said bottom surface.
Claim 5
Dependent Claim
32 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base as recited in claim 3 wherein said first axis is substantially parallel with said second axis.
Claim 6
Dependent Claim
48 words
An apparatus for stabilizing operational movement of an actuator for a keyswitch mounted to a base as recited in claim 1 wherein said gripping means comprises a channel having two arms, said base being slidingly grippingly engaged between said arms and said free edge extending into said channel.
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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |