Patent US4686965A successfully refreshed from Google Patents.
Patent US3171091A successfully refreshed from Google Patents.
US3171091A
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Transformer encased in magnetic tape
Assignee: Nytronics Inc
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Filing: 1960-08-02
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Granted: 1965-02-23
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Expires: 1980-08-02
Abstract
No abstract record available.
Inventors
- 👤 Bernard M Goldsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:30
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/045; H01F27/00; H01F27/02; H01F27/022; H01F30/00; H01F30/06; H01F30/10; Y; Y10; Y10S; Y10S174/00; Y10S174/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN ELECTRICAL COIL CONSTRUCTION, COMPRISING AN ELONGATED CYLINDRICAL CORE OF MAGNETIC-FLUX CONDUCTING MATERIAL, A WINDING INCLUDING PLURALITY OF TURNS OVER A PORTION OF SAID CORE SHORT OF THE AXIAL ENDS THEREOF, THERE BEING THUS EXPOSED A SUBSTANTIALLY CONTINUOUS CYLINDRICAL CORE SURFACE AT EACH END OF SAID WINDING, AND MAGNETICFLUX CONDUCTING MEANS CONNECTING SAID SURFACES INDEPENDENT OF LINKAGE TO SAID WINDING, SAID LAST-DEFINED MEANS INCLUDING PLASTIC TAPE MEANS OF HIGH-PERMEABILITY MATERIAL AND CIRCUMFERENTIALLY EXTENDING MEANS RADIALLY INWARDLY COMPRESSING THE HIGH-PERMEABILITY MATERIAL INTO PRESSURE CONTACT WITH EACH OF SAID END SURFACES.
Claim 2
Dependent Claim
89 words
AN ELECTRICAL COIL CONSTRUCTION, COMPRISING AN ELONGATED CYLINDRICAL CORE OF MAGNETIC-FLUX CONDUCTING MATERIAL, A WINDING INCLUDING PLURALITY OF TURNS OVER A PORTION OF SAID CORE SHORT OF THE AXIAL ENDS THEREOF, THERE BEING THUS EXPOSED A SUBSTANTIALLY CONTINUOUS CYLINDRICAL CORE SURFACE AT EACH END OF SAID WINDING, AND MAGNETICFLUX CONDUCTING MEANS CONNECTING SAID SURFACES INDEPENDENT OF LINKAGE TO SAID WINDING, SAID LAST-DEFINED MEANS INCLUDING PLASTIC TAPE MEANS OF HIGH-PERMEABILITY MATERIAL AND CIRCUMFERENTIALLY EXTENDING MEANS RADIALLY INWARDLY COMPRESSING THE HIGH-PERMEABILITY MATERIAL INTO PRESSURE CONTACT WITH EACH OF SAID END SURFACES.
References Cited (Backward Citations)
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Cited
US1994534A
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US2457806A
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US2791753A
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US2966704A
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US2938210A
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |