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US4737752A Expired / Lapsed US ⏱️ 0.0 years remaining

Oscilloscope deflection yoke with heat dissipation means

Assignee: Raytheon Co
•
Filing: 1986-08-11
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Granted: 1988-04-12
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Expires: 2006-08-11
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Abstract

Abstract A high-performance deflection yoke providing deflection of an electron beam in a CRT at high rates at high deflection angles. The high-performance deflection yoke includes a heat sink contacting the deflection yoke coils to remove the heat produced in the deflection yoke due to core losses and heat produced in the deflection coils due to resistive losses. The heat sink minimizes induced eddy currents and comprises fine wire elements, interwoven and/or in juxtaposition with the deflection coils, wherein the heat created within and picked up by the deflection coils is transferred to the heat sink for dissipation. By minimizing power lost in the heat sink due to inductive heating of the metallic components thereof, the heat sink according to the present invention provides a high-performance deflection yoke having low inductance, high power performance not heretofore practically realizable.

Inventors

  • 👤 J. Stanley Kriz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 21:25
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 46 words
A high-performance deflection yoke comprising: a deflection winding; and heat sink means retained in contact with said deflection winding and having at least one heat conductive element extending away from said deflection winding, for transferring heat generated by said deflection winding away from said deflection winding.
Claim 2
Dependent Claim 46 words
A high-performance deflection yoke comprising: a deflection winding; and heat sink means retained in contact with said deflection winding and having at least one heat conductive element extending away from said deflection winding, for transferring heat generated by said deflection winding away from said deflection winding.
Claim 3
Dependent Claim 16 words
The high performance deflection yoke of claim 1 further comprising a core retaining said deflection winding.
Claim 4
Dependent Claim 18 words
The high-performance deflection yoke of claim 1 wherein said heat sink comprises a low eddy current heat sink.
Claim 5
Dependent Claim 18 words
The high-performance deflection yoke of claim 3, wherein said low eddy current heat sink means comprises litz wire.
Claim 6
Dependent Claim 22 words
The high-performance deflection yoke of claim 3, wherein said low eddy current heat sink comprises wire elements interwoven within said deflection winding.
Claim 7
Dependent Claim 25 words
The high-performance deflection yoke of claim 3, wherein said low eddy current heat sink is juxtaposed to at least a portion of said deflection winding.
Claim 8
Dependent Claim 33 words
The high-performance deflection yoke of claim 6 comprising a plurality of deflection windings, wherein said low eddy current heat sink is interposed between at least a portion of a plurality of deflection windings.

References Cited (Backward Citations)

CA716216A Cited
US3573525A Cited
US3831051A Cited
US4549042A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-04-12 1991-10-12 1992-04-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-04-12 1995-10-12 1996-04-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-04-12 1999-10-12 2000-04-12 $7700.00 Window Closed / Lapsed

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