US4228413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saddle-toroid deflection winding for low loss and/or reduced conductor length
Assignee: RCA Licensing Corp
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Filing: 1978-12-11
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Granted: 1980-10-14
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Expires: 1998-12-11
Abstract
Abstract A deflection yoke for deflecting the electron beam of a kinescope includes conductors, portions of which are saddle-wound and portions of which are toroidally wound for reducing the length of conductor required for deflection, for reducing losses due to leakage fields, or both.
Inventors
- 👤 Francis J. Campbell
- 👤 William H. Barkow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:14
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/766
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A deflection yoke adapted for deflection of an electron beam of a kinescope, comprising: deflection winding means including first and second winding portions lying along the inner surface of a magnetically permeable annular core in a nonoverlapping manner for producing a field upon the passage of a deflection current therethrough for deflecting the electron beam to form a line, said winding means further comprising first return conductors disposed at the entrance and exit ends of said core and associated with said first winding portions to form saddle windings, said winding means also comprising second return conductors girdling said core and associated with said second winding portions to form toroidal windings.
Claim 2
Dependent Claim
110 words
A deflection yoke adapted for deflection of an electron beam of a kinescope, comprising: deflection winding means including first and second winding portions lying along the inner surface of a magnetically permeable annular core in a nonoverlapping manner for producing a field upon the passage of a deflection current therethrough for deflecting the electron beam to form a line, said winding means further comprising first return conductors disposed at the entrance and exit ends of said core and associated with said first winding portions to form saddle windings, said winding means also comprising second return conductors girdling said core and associated with said second winding portions to form toroidal windings.
Claim 3
Dependent Claim
107 words
A deflection yoke adapted for deflection of an electron beam of a television picture tube, comprising: first and second deflection winding portions disposed inside a toroidal magnetic core for producing a deflection field for deflecting the electron beam to form a line, said first deflection winding portion further comprising return conductors disposed near the electron beam entrance and exit ends of said core to form saddle windings occupying a region subtended by a first control angle, said second deflection winding portion further comprising return conductors girdling said core to form toroidal windings occupying a region subtended by a second central angle independent of said first central angle.
Claim 4
Dependent Claim
107 words
A deflection yoke adapted for deflection of an electron beam of a television picture tube, comprising: first and second deflection winding portions disposed inside a toroidal magnetic core for producing a deflection field for deflecting the electron beam to form a line, said first deflection winding portion further comprising return conductors disposed near the electron beam entrance and exit ends of said core to form saddle windings occupying a region subtended by a first control angle, said second deflection winding portion further comprising return conductors girdling said core to form toroidal windings occupying a region subtended by a second central angle independent of said first central angle.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |