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US4683465A Expired / Lapsed US ⏱️ 0.0 years remaining

Data display terminal using a flat display panel

Assignee: Unisys Corp
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Filing: 1984-12-19
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Granted: 1987-07-28
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Expires: 2004-12-19
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Abstract

Abstract A data display terminal comprises a flat display panel assembly pivotably secured to a base by means of a friction sleeve and a torsion spring so that the display panel assembly can be pivoted with respect to said base and can be held at any selected angular position.

Inventors

  • 👤 Ralph J. Lake, Jr.
  • 👤 Timothy R. Stern
  • 👤 George A. Sudol
  • 👤 Vladimir Selepouchin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 00:32
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1601; G06F2200/00; G06F2200/16; G06F2200/161; G06F2200/1612; Y; Y10; Y10S; Y10S345/00; Y10S345/905

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 115 words
A data display terminal comprising a generally thin, flat display panel assembly; a base to which said dispaly panel assembly is pivotably coupled; and means for coupling together said display panel assembly and said base, said coupling means including a hollow tubular member connected to said display panel assembly, a torsion spring disposed within said hollow tubular member, a frictional sleeve enclosing said hollow tubular member, and a split tubular bracket enclosing said sleeve and said hollow tubular member, said split tubular bracket being connected to said base; said display panel assembly including a central frame portion and left nd right end brackets secured thereto and flat display panel seated on said central frame portion.
Claim 2
Dependent Claim 115 words
A data display terminal comprising a generally thin, flat display panel assembly; a base to which said dispaly panel assembly is pivotably coupled; and means for coupling together said display panel assembly and said base, said coupling means including a hollow tubular member connected to said display panel assembly, a torsion spring disposed within said hollow tubular member, a frictional sleeve enclosing said hollow tubular member, and a split tubular bracket enclosing said sleeve and said hollow tubular member, said split tubular bracket being connected to said base; said display panel assembly including a central frame portion and left nd right end brackets secured thereto and flat display panel seated on said central frame portion.
Claim 3
Dependent Claim 28 words
The terminal defined in claim 1 wherein said hollow tubular member is part of said display panel assembly and said split tubular bracket is part of said base.
Claim 4
Dependent Claim 21 words
The terminal according to claim 1 including means for adjusting the frictional fit between said split tubular bracket and said sleeve.
Claim 5
Dependent Claim 37 words
The terminal in accordance with claim 3 wherein a first end of said torsion spring is engaged with said hollow tubular member and a second end of said torsion spring is engaged with said split tubular bracket.
Claim 6
Dependent Claim 30 words
The terminal in accordance with claim 4 wherein the first and second ends of said torsion spring are further engaged with corresponding first and second ends of said frictional sleeve.
Claim 7
Dependent Claim 72 words
The terminal in accordance with claim 3 wherein said frictional fit adjusting means includes: a tab connected to said split tubular bracket; a screw passing through a hole in said tab and engaging a threaded hole in said split tubular bracket, said tab connected to said split tubular bracket at a position whereby the adjustment of said screw opens and closes a longitudinal space between the end of said split tubular bracket.
Claim 8
Dependent Claim 75 words
The terminal in accordance with claim 1 wherein said coupling means is connected between said base and display panel assembly proximate respective first ends of said base and said display panel assembly and wherein said terminal further includes a second coupling means for further coupling together said display panel assembly and said base, said second coupling means being connected between said base and said assemly proximate respective second ends of said base and said assembly.
Claim 9
Dependent Claim 19 words
The apparatus in accordance with claim 1 wherein said hollow tubular member projects laterally from said display panel assembly.
Claim 10
Dependent Claim 212 words
A data display terminal comprising a generally thin, flat display panel assembly; a base to which said display panel assembly is pivotably coupled; said display panel assembly including a frame having parallel upper and lower edges, a flat display panel secured to said frame, a plurality of printed circuit boards secured between said panel and said frame, a housing having upper and lower slots extending along its length and having left and right edges, said frame carrying said panel and said boards being secured to said housing with its upper and lower edges seated in said upper and lower slots, respectively, left and right end caps secured to the left and right edges of said housing; said left and right end caps having left and right hollow tubular members at their respective lower ends, and means for coupling together said display panel assembly and said base, said coupling means including left and right torsion springs disposed within said left and right hollow tubular members respectively, left and right frictional sleeves enclosing said left and right hollow tubular members respectively, left and right split tubular brackets enclosing said left and right sleeves and said left and right hollow tubular members respectively, said left and right split tubular brackets being connected to said base.
Claim 11
Dependent Claim 212 words
A data display terminal comprising a generally thin, flat display panel assembly; a base to which said display panel assembly is pivotably coupled; said display panel assembly including a frame having parallel upper and lower edges, a flat display panel secured to said frame, a plurality of printed circuit boards secured between said panel and said frame, a housing having upper and lower slots extending along its length and having left and right edges, said frame carrying said panel and said boards being secured to said housing with its upper and lower edges seated in said upper and lower slots, respectively, left and right end caps secured to the left and right edges of said housing; said left and right end caps having left and right hollow tubular members at their respective lower ends, and means for coupling together said display panel assembly and said base, said coupling means including left and right torsion springs disposed within said left and right hollow tubular members respectively, left and right frictional sleeves enclosing said left and right hollow tubular members respectively, left and right split tubular brackets enclosing said left and right sleeves and said left and right hollow tubular members respectively, said left and right split tubular brackets being connected to said base.
Claim 12
Dependent Claim 43 words
The terminal defined in claim 9 wherein said left torsion spring is secured between said left hollow tubular member and said left split tubular bracket; said right torsion spring is secured between said right hollow tubular member and said right split tubular bracket.
Claim 13
Dependent Claim 36 words
The terminal defined in claim 10 wherein said left and right hollow tubular members are part of said left and right end caps respectively; said left and right split tubular brackets are part of said base.
Claim 14
Dependent Claim 34 words
The terminal according to claim 9 further including left and right adjusting means for adusting the frictional fit between said left and right split tubular brackets respectively and said left and right sleeves respectively.
Claim 15
Dependent Claim 74 words
The terminal according to claim 12 wherein: a first end of said left torsion spring is engaged with said left hollow tubular member and a second end of said left torsion spring is engaged with said left split tubular bracket; and a first end of said right torsion spring is engaged with said right hollow tubular member and a second end of said right torsion spring is engaged with said right split tubular bracket.
Claim 16
Dependent Claim 56 words
The terminal according to claim 13 wherein: the first and second ends of said left torsion spring are further engaged with corresponding first and second ends of said left frictional sleeve; and the first and second ends of said right torsion spring are further engaged with corresponding first and second ends of said right frictional sleeve.
Claim 17
Dependent Claim 76 words
The terminal according to claim 12 wherein said left frictional fit adjusting means includes: a tab connected to said left split tubular bracket; a screw passing through a hole in said tab and engaging a threaded hole in said left split tubular bracket, said tab connected to said left split tubular bracket at a position whereby the adjustment of said screw opens and closes a longitudinal space between the ends of said left split tubular bracket.
Claim 18
Dependent Claim 21 words
The terminal according to claim 9 wherein said left and right hollow tubular members project laterally from said display panel assembly.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-07-27 1991-01-26 1991-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-07-27 1995-01-26 1995-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-07-27 1999-01-26 1999-07-28 $7700.00 Window Closed / Lapsed

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