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US3287670A Expired / Lapsed US ⏱️ 0.0 years remaining

High power ferrite stacked disc core hf transformers and/or power dividers

Assignee: Collins Radio Co
•
Filing: 1965-03-19
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Granted: 1966-11-22
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Expires: 1985-03-19
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Abstract

No abstract record available.

Inventors

  • 👤 Klaus G Schroeder

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 19:07
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/26; H01F27/263

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 153 words
IN A HIGH POWER HIGH FREQUENCY TRANSFORMER, A FERRITE MATERIAL TRANSFORMER CORE SECTION WITH TWO ELONGATE RELATIVELY NARROW COIL WINDING SLOT WINDOWS AND MAGNETIC CIRCUIT FERRITE CORE MATERIAL BETWEEN SAID SLOT WINDOWS; A SINGLE LAYER OF INSULATED WIRE TURNS PASSED THROUGH SAID SLOT WINDOWS; WITH THE WINDINGS INCLUDING TURNS OF AT LEAST TWO TRANSFORMER WINDING SECTIONS; WHEREIN THE MAGNETIC CIRCUIT FERRITE CORE MATERIAL BETWEEN SAID SLOT WINDOWS IS SUBSTANTIALLY RECTANGULAR IN CROSS SECTION ALONG A PLANE NORMAL TO THE AXIS OF THE WIRE WINDINGS WITHIN THE AREA ENCLOSED BY THE WINDING TURNS; WHEREIN A PLURALITY OF SAID FERRITE MATERIAL TRANSFORMER CORE SECTIONS ARE STACKED TOGETHER; THE WIRE TURNS ARE WOUND THROUGH SAID SLOT WINDOWS AND ABOUT THE MAGNETIC CIRCUIT FERRITE CORE MATERIAL BETWEEN THE SLOT WINDOWS; AND MEANS IS PROVIDED HOLDING COIL TURNS OF THE TRANSFORMER IN MUTUALLY SPACED RELATION INCLUDING NONCONDUCTIVE ASSEMBLY RETAINING BAR MEANS HAVING MULTIPLE SPACED COIL TURN RETAINING GROOVES.

References Cited (Backward Citations)

GB851814A Cited
US2947957A Cited
US2990524A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-11-21 1970-05-23 1970-11-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-11-21 1974-05-23 1974-11-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-11-21 1978-05-23 1978-11-22 $7700.00 Window Closed / Lapsed

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