US3789140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tiltable display screen assembly
Assignee: AT&T Teletype Corp
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Filing: 1972-07-03
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Granted: 1974-01-29
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Expires: 1992-07-03
Abstract
Abstract A chassis is secured to the cabinet of television apparatus for manually tilting the primary image screen of the tube about a horizontal first axis disposed slightly behind the screen. Manual torque is applied by a hand wheel exposed through the cabinet and chassis and rockable about a second axis parallel to and behind the first axis. For torque transfer, a pinion rockable about the second axis with said hand wheel is enmeshed with a concave gear rack which is concentric with said first axis and has a radius of curvature larger than said pinion.
Inventors
- 👤 E Mcqueen
- 👤 T Spicer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:03
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/655; Y; Y10; Y10S; Y10S248/00; Y10S248/917; Y10S248/919; Y10S248/922; Y10S248/923
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
In a mechanism for tilting a primary image display screen disposed within a cabinet and about a first axis disposed at or near said screen, the improvement comprised of: means for manually generating torque; means for imposing said torque on said screen and rocking said screen about said first axis, said imposing means including a gear assembly with a part concentric to said first axis.
Claim 2
Dependent Claim
65 words
In a mechanism for tilting a primary image display screen disposed within a cabinet and about a first axis disposed at or near said screen, the improvement comprised of: means for manually generating torque; means for imposing said torque on said screen and rocking said screen about said first axis, said imposing means including a gear assembly with a part concentric to said first axis.
Claim 3
Dependent Claim
70 words
A combination according to claim 1 wherein said part comprises a concave gear rack secured to said screen and disposed rearwardly of said screen, and said gear assembly also includes a pinion having a radius of curvature smaller than the radius of curvature of said gear rack, said pinion being meshed with said rack and connected to said generating means concentrically with a second axis parallel to said first axis.
Claim 4
Dependent Claim
19 words
A combination according to claim 2 wherein said torque generating means includes a hand wheel connected to said pinion.
Claim 5
Dependent Claim
30 words
A combination according to claim 1 and having a second axis parallel to said first axis, said torque generating means and the torque generated thereby disposed about said second axis.
Claim 6
Dependent Claim
41 words
A combination according to claim 4 further characterized by a chassis mounted in said cabinet, and wherein said torque generating means includes a member disposed coaxially with said second axis and mounted from said chassis for transferring torque to said part.
Claim 7
Dependent Claim
45 words
A combination according to claim 5 wherein said part comprises a gear segment, and said gear assembly also includes a pinion disposed about said member and meshed with said gear segment for movement thereof and said generating means simultaneously and in the same angular direction.
Claim 8
Dependent Claim
44 words
A combination according to claim 6 wherein said cabinet has a slot, and said generating means comprises a hand wheel mounted within said cabinet about said second axis in a plane perpendicular to said first axis and exposed to the exterior through said slot.
Claim 9
Dependent Claim
16 words
A combination according to claim 7 wherein said hand wheel and said pinion are secured together.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |