Patent US5559670A successfully refreshed from Google Patents.
US5559670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible display computer
Assignee: Lenovo Singapore Pte Ltd
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Filing: 1994-10-18
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Granted: 1996-09-24
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Expires: 2014-10-18
Abstract
Abstract The invention is a convertible display computer structure in which the display is centrally pivoted in a frame that in turn is hinged on one side on the keyboard so that the display can be positioned to face toward the user when the frame is positioned to be essentially vertical with respect to the keyboard and when it is desired to provide graphic information entry, the display can be turned over so as to serve as a writing surface when the hinged frame is positioned over the keyboard. The conversion from keyboard to graphic stylus input is accomplished by rotating the display on the pivot mountings and then closing the frame over the keyboard with the display surface up and in the proper orientation.
Inventors
- 👤 Ephraim B. Flint
- 👤 Alphonso P. Lanzetta
- 👤 Lawrence S. Mok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:42
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1675; G06F1/1679; G06F1/1615; G06F1/1616; G06F1/162; G06F1/1683
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
In a computer of the type having a computer base that supports a keyboard with a display element and graphic input element combination that as a unit reversibly rotates on central pivot members on each side of said unit and which pivot members extend into a frame with a hinged attachment of said frame at an edge of said computer base, the improvement comprising, an electrical connection, through at least one conductive ring and brush at said pivot members, and, a spring loaded, contact at said frame edge, between at least one of said display element and said graphic input element and wiring to said computer base, in said frame.
Claim 2
Dependent Claim
110 words
In a computer of the type having a computer base that supports a keyboard with a display element and graphic input element combination that as a unit reversibly rotates on central pivot members on each side of said unit and which pivot members extend into a frame with a hinged attachment of said frame at an edge of said computer base, the improvement comprising, an electrical connection, through at least one conductive ring and brush at said pivot members, and, a spring loaded, contact at said frame edge, between at least one of said display element and said graphic input element and wiring to said computer base, in said frame.
Claim 3
Dependent Claim
36 words
The improvement of claim 1 wherein said conductive ring and brush includes at least one ring on at least one of each said pivot members with a holder supported brush in contact with each said ring.
Claim 4
Dependent Claim
51 words
The improvement of claim 1 wherein said spring loaded, edge contact includes at least one electrically connected spring loaded contact member positioned in said frame and an edge terminal positioned in an edge of said display and graphic input unit, and is electrically connected to said display and graphic input unit.
Claim 5
Dependent Claim
90 words
A computer of the notebook or laptop type wherein a superimposed display and graphic input part as a unit in a frame reversably rotates on centrally positioned side pivot members, said frame being hinged on and foldable over a computer base that supports a keyboard, the improvement comprising, providing, in said frame an electrical interconnection between said display and graphical input part and wiring to said computer base, using at least one of conductive ring and brush at said pivot members, and, a spring loaded contact at said frame edge.
Claim 6
Dependent Claim
90 words
A computer of the notebook or laptop type wherein a superimposed display and graphic input part as a unit in a frame reversably rotates on centrally positioned side pivot members, said frame being hinged on and foldable over a computer base that supports a keyboard, the improvement comprising, providing, in said frame an electrical interconnection between said display and graphical input part and wiring to said computer base, using at least one of conductive ring and brush at said pivot members, and, a spring loaded contact at said frame edge.
Claim 7
Dependent Claim
36 words
The improvement of claim 4 wherein said conductive ring and brush includes at least one ring on at least one of each said pivot members with a holder supported brush in contact with each said ring.
Claim 8
Dependent Claim
50 words
The improvement of claim 4 wherein said spring loaded edge contact includes at least one electrically connected spring loaded contact member positioned in said frame and an edge terminal positioned in an edge of said display and graphic input part and electrically connected to said display and graphic input part.
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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) | 1999-09-24 | 2000-03-25 | 2000-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-24 | 2004-03-25 | 2004-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-24 | 2008-03-25 | 2008-09-24 | $7700.00 | Window Closed / Lapsed |