US5197704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angle adjusting device for a display device
Assignee: NHK Spring Co Ltd
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Filing: 1990-12-27
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Granted: 1993-03-30
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Expires: 2010-12-27
Abstract
Abstract An angle adjusting device for a display device has a pair of fixed axes abutted on the both ends of a rotatable axis and a pair of coil spring wound over the abutted portions. The angle of inclination of the display device is arbitrarily controlled by a total frictional torque obtained between the inner walls of the coil springs and the rotatable and fixed axes.
Inventors
- 👤 Yoshiharu Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:48
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1675; G06F1/1681; F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; G06F1/1615; G06F1/1616; E; E05; E05D; E05D11/00; E05D11/08; E05D11/082; E05D11/084; E05Y; E05Y2999/00; F16M2200/00; F16M2200/04; F16M2200/041; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32819; Y10T403/32827
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
An angle adjusting device for a display device comprising a pair of relatively movable bearings, a pair of bushings of like outer diameter fixed coaxially on the respective bearings, an axle rotatably received within said bushings, said axle having an enlarged central portion between the bushings of like outer diameter to that of the bushings, the axle further having one end extending outwardly beyond one of said bearings for application of torque to the axle, and a pair of coil springs frictionally fitted over the respective bushings and each extending over a part of said enlarged central portion of the axle.
Claim 2
Dependent Claim
101 words
An angle adjusting device for a display device comprising a pair of relatively movable bearings, a pair of bushings of like outer diameter fixed coaxially on the respective bearings, an axle rotatably received within said bushings, said axle having an enlarged central portion between the bushings of like outer diameter to that of the bushings, the axle further having one end extending outwardly beyond one of said bearings for application of torque to the axle, and a pair of coil springs frictionally fitted over the respective bushings and each extending over a part of said enlarged central portion of the axle.
Claim 3
Dependent Claim
25 words
An angle adjusting device according to claim 1 wherein said enlarged central portion of the axle is longer than the combined length of said bushings.
Claim 4
Dependent Claim
29 words
An angle adjusting device according to claim 1 wherein the springs each have fewer windings extending over the enlarged central portion of the axle than over the respective bushings.
Claim 5
Dependent Claim
29 words
An angle adjusting device according to claim 1 wherein the springs each have more windings extending over the enlarged central portion of the axle than over the respective bushings.
Claim 6
Dependent Claim
37 words
An angle adjusting device according to claim 1 wherein each of said bearings has a foot portion with a slot and each of said springs has an extended end received in a respective one of said slots.
Claim 7
Dependent Claim
19 words
An angle adjusting device according to claim 1 wherein said one end of said axle has a non-circular section.
References Cited (Backward Citations)
EP0331490A2
Cited
US5018244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |