US3671894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection yokes for cathode ray tubes
Assignee: Denki Onkyo Co Ltd
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Filing: 1970-04-15
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Granted: 1972-06-20
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Expires: 1990-04-15
Abstract
Abstract A deflection yoke for use in a cathode ray tube comprises a yoke bobbin, at least two pairs of segments projecting axially from the rear edge of the yoke bobbin and means for clamping the segments about the cathode ray tube to secure thereon the deflection yoke.
Inventors
- 👤 Eiji Sawada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:09
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/823; H01J29/826; H01J29/70; H01J29/72; H01J29/76; H01J29/762
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A deflection yoke for a cathode ray tube having a substantially cylindrical neck and an outwardly extending flared portion located forward of said neck, said deflection yoke comprising: a yoke bobbin having a forward end surrounding and spaced from the flared portion of said cathode ray tube, said forward end tapering inwardly into a substantially cylindrical neck portion at the neck of said cathode ray tube, an integral solid flange extending radially from the outer surface of said cylindrical neck portion and at least two pairs of opposed integral segments projecting beyond said flange as axial extensions of the inner surface of said cylindrical neck portion and located about the neck of said cathode ray tube; and means for clamping said segments about the neck of said cathode ray tube to secure thereon said deflection yoke.
Claim 2
Dependent Claim
136 words
A deflection yoke for a cathode ray tube having a substantially cylindrical neck and an outwardly extending flared portion located forward of said neck, said deflection yoke comprising: a yoke bobbin having a forward end surrounding and spaced from the flared portion of said cathode ray tube, said forward end tapering inwardly into a substantially cylindrical neck portion at the neck of said cathode ray tube, an integral solid flange extending radially from the outer surface of said cylindrical neck portion and at least two pairs of opposed integral segments projecting beyond said flange as axial extensions of the inner surface of said cylindrical neck portion and located about the neck of said cathode ray tube; and means for clamping said segments about the neck of said cathode ray tube to secure thereon said deflection yoke.
Claim 3
Dependent Claim
17 words
The deflection yoke according to claim 1 wherein said pairs of segments are perpendicular to each other.
Claim 4
Dependent Claim
37 words
The deflection yoke according to claim 1 wherein said yoke bobbin comprises two symmetrically divided halves each having two of said segments diametrically opposed and one additional segment intermediate of said opposed segments in the circumferential direction.
Claim 5
Dependent Claim
32 words
The deflection yoke of claim 3 and including a flared axial rib on the inner surface of said flared cone with said additional segment projecting on an axial extension of said rib.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |