US3922626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide angle deflection yoke quadrupole windings
Assignee: GTE Sylvania Inc
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Filing: 1974-11-07
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Granted: 1975-11-25
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Expires: 1994-11-07
Abstract
Abstract A deflection yoke for a cathode ray tube includes a frustroconical core of magnetic material with a first pair of windings toroidally wrapped in a first level on the core, a second pair of windings toroidally wrapped on the core and interleaved with the first pair of windings to provide a solid first level of windings and forming a second level, and first, second, third, and fourth quadrupole windings toroidally wrapped on the core and interleaved with the second pair of windings of the second level whereby a minimum number of levels are employed for affixing all of the windings to the core.
Inventors
- 👤 Frederick A Hovey
- 👤 Charles E Torsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:51
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/764; H01F; H01F7/00; H01F7/06; H01F7/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
A deflection yoke for a cathode ray tube comprising: a first core of magnetic material formed to telescope over the neck portion of a cathode ray tube; a first pair of windings having a plurality of spaced turns toroidally wrapped in a first level on said core, said pair of windings effecting electron beam deflection in a first plane; a second pair of windings having a plurality of spaced turns toroidally wrapped on said core, said spaced turns interleaved with said spaced turns of said first pair of windings to provide a solid first level of turns and forming a second level of spaced turns; said pair of windings effecting electron beam deflection in a second plane perpendicular to said first plane; and first, second, third, and fourth quadrupole windings having a plurality of spaced turns toroidally wrapped on said core and interleaved with said spaced turns of said second level of said second pair of windings.
Claim 2
Dependent Claim
157 words
A deflection yoke for a cathode ray tube comprising: a first core of magnetic material formed to telescope over the neck portion of a cathode ray tube; a first pair of windings having a plurality of spaced turns toroidally wrapped in a first level on said core, said pair of windings effecting electron beam deflection in a first plane; a second pair of windings having a plurality of spaced turns toroidally wrapped on said core, said spaced turns interleaved with said spaced turns of said first pair of windings to provide a solid first level of turns and forming a second level of spaced turns; said pair of windings effecting electron beam deflection in a second plane perpendicular to said first plane; and first, second, third, and fourth quadrupole windings having a plurality of spaced turns toroidally wrapped on said core and interleaved with said spaced turns of said second level of said second pair of windings.
Claim 3
Dependent Claim
34 words
The deflection yoke of claim 1 wherein said first pair of windings effect electron beam deflection in a horizontal plane and said second pair of windings effect electron beam deflection in a vertical direction.
Claim 4
Dependent Claim
51 words
The deflection yoke of claim 1 wherein said first pair of windings are disposed in a single first level, said first, second, third, and fourth quadrupole windings are disposed in a single second level, and said second pair of windings are interspersed between said windings of said first and second levels.
Claim 5
Dependent Claim
44 words
The deflection yoke of claim 1 wherein said first and second pair of windings are substantially centered about planes extending along horizontal and vertical axes respectively and said first, second, third, and fourth quadrupole windings are substantially centered about said horizontal and vertical axes.
Claim 6
Dependent Claim
190 words
In a television receiver employing a cathode ray tube having a neck portion and an electron beam impinging a light emitting screen, a deflection yoke comprising: a core of magnetic material of frustro-conical shape for telescoping over the neck portion of a cathode ray tube; a pair of horizontal deflection windings oppositely disposed about the vertical axis of said core, each of sAid pair of windings having a plurality of spaced turns toroidally wrapped in a first level on said core for effecting deflection of an electron beam in a first direction; a pair of vertical deflection windings oppositely disposed about the horizontal axis of said core each of said pair of windings having a plurality of spaced turns toroidally wrapped on said core and interleaved with said turns of said pair of horizontal deflection windings to provide a solid first level of turns and forming a second level of spaced turns; and first, second, third, and fourth quadrupole windings toroidally wrapped on said core and centrally disposed about said horizontal and vertical axis, said quadrupole windings interleaved with said turns of said second level of spaced vertical deflection windings.
Claim 7
Dependent Claim
190 words
In a television receiver employing a cathode ray tube having a neck portion and an electron beam impinging a light emitting screen, a deflection yoke comprising: a core of magnetic material of frustro-conical shape for telescoping over the neck portion of a cathode ray tube; a pair of horizontal deflection windings oppositely disposed about the vertical axis of said core, each of sAid pair of windings having a plurality of spaced turns toroidally wrapped in a first level on said core for effecting deflection of an electron beam in a first direction; a pair of vertical deflection windings oppositely disposed about the horizontal axis of said core each of said pair of windings having a plurality of spaced turns toroidally wrapped on said core and interleaved with said turns of said pair of horizontal deflection windings to provide a solid first level of turns and forming a second level of spaced turns; and first, second, third, and fourth quadrupole windings toroidally wrapped on said core and centrally disposed about said horizontal and vertical axis, said quadrupole windings interleaved with said turns of said second level of spaced vertical deflection windings.
Claim 8
Dependent Claim
42 words
The deflection yoke of claim 5 wherein said horizontal deflection windings and said first, second, third, and fourth quadrupole windings are in first and second levels on said core and said vertical deflection windings are interspersed between said first and second levels.
Claim 9
Dependent Claim
74 words
The deflection yoke of claim 5 wherein each of said pair of horizontal deflection windings is centrally disposed about said horizontal axis and oppositely disposed about said vertical axis, each of said pair of vertical deflection windings is centrally disposed about said vertical axis and oppositely disposed about said horizontal axis, and each one of said first, second, third, and fourth quadrupole windings is centrally disposed about one of said first and second axes.
References Cited (Backward Citations)
US3792305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |