US4253737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-Glare device for a computer terminal display tube
Assignee: SUN-FLEX LP
•
Filing: 1979-02-12
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Granted: 1981-03-03
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Expires: 1999-02-12
Abstract
Abstract An anti-glare device for the display tube of a computer terminal or other video display tube wherein illuminated messages or images are presented on a highly reflective surface, comprising a microweave screen of fine black filaments in a fine mesh mounted in a flexible frame so that the screen conforms to and maintains contact with, the display tube. The frame is secured so that the screen covers the terminal tube, and substantially conforms to the surface thereof. The filaments are preferably approximately 0.0025 inch in diameter and there are approximately 150 filaments per inch.
Inventors
- 👤 Erik J. Thomsen
- 👤 Patrick W. Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:46
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/896; H01J2229/00; H01J2229/89; H01J2229/8913; H01J2229/8922; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
An anti-glare device for a curved video display screen comprising: a thin, lightweight, portable frame of a flexible material; a microweave mesh of black filaments stretched across the inner surface of said frame; said frame being wide enough that it resists bending in all directions in the plane of the mesh but being flexible in all directions transverse thereto so that said frame and stretched mesh will conform to the curvature of a terminal display scope to which said frame is attached; and means for attaching said frame to a terminal display scope so that said mesh conforms to and contacts said scope over the surface thereof.
Claim 2
Dependent Claim
107 words
An anti-glare device for a curved video display screen comprising: a thin, lightweight, portable frame of a flexible material; a microweave mesh of black filaments stretched across the inner surface of said frame; said frame being wide enough that it resists bending in all directions in the plane of the mesh but being flexible in all directions transverse thereto so that said frame and stretched mesh will conform to the curvature of a terminal display scope to which said frame is attached; and means for attaching said frame to a terminal display scope so that said mesh conforms to and contacts said scope over the surface thereof.
Claim 3
Dependent Claim
25 words
The anti-glare device defined by claim 1 including: means on said frame for securing said flexible frame directly to the surface of a display scope.
Claim 4
Dependent Claim
28 words
The anti-glare device defined by claim 1 wherein: said frame is of a size and shape to be clamped to said screen by the video terminal front panel.
References Cited (Backward Citations)
CA521316A
Cited
US2977412A
Cited
US3215054A
Cited
FR1383756A
Cited
US3511560A
Cited
US3390447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |