Patent US3873875A successfully refreshed from Google Patents.
US3873875A
Expired / Lapsed
US
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Temperature compensating parallax barrier supporting system for color cathode ray tubes
Assignee: GTE Sylvania Inc
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Filing: 1971-09-29
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Granted: 1975-03-25
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Expires: 1991-09-29
Abstract
Abstract Parallex barrier supporting means comprising substantially flat, rectangular bi-metallic elements are disclosed. The elements are attached to the upper portion of the barrier frame and have depending springs attached thereto. The springs have apertures formed therein to mate with studs formed on the tube envelope inner wall.
Inventors
- 👤 Larry R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:32
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/06; H01J29/07; H01J29/073
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
A parallax barrier supporting element formed for affixation to an inwardly projecting flange on said barrier comprising: a flat, planar, bimetallic element comprised of two dissimilar materials one of which has a higher thermal coefficient of expansion than the other and a depending spring affixed on one end of said element, said spring projecting from said plane of said element at an angle of substantially 90* and having formed therein means for engaging mating means.
Claim 2
Dependent Claim
75 words
A parallax barrier supporting element formed for affixation to an inwardly projecting flange on said barrier comprising: a flat, planar, bimetallic element comprised of two dissimilar materials one of which has a higher thermal coefficient of expansion than the other and a depending spring affixed on one end of said element, said spring projecting from said plane of said element at an angle of substantially 90* and having formed therein means for engaging mating means.
Claim 3
Dependent Claim
15 words
The invention of claim 1 wherein the depending portion of said spring is substantially trapezoidal.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |