Patent US3227973A successfully refreshed from Google Patents.
US3227973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer
Assignee: Individual
•
Filing: 1962-01-31
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Granted: 1966-01-04
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Reginald I Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:28
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/34; H01F27/36; H01F27/366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A TRANSFORMER FOR REDUCING TO A NEGLIGIBLE LEVEL THE RADIO-FREQUENCY POWER TRANSMITTED WHILE ALLOWING OPERATIONS IN THE PASS-BAND COMPRISING AN ELONGATED CORE, AN ELECTROMAGNETIC BARRIER FIXEDLY POSITIONED AT APPROXIMATELY THE LINEAR CENTER OF SAID CORE, AN OUTER BODY HAVING A CENTRAL CYLINDRICAL MEMBER FIXEDLY POSITIONED AT APPROXIMATELY ITS INTERNAL LINEAR CENTER TO SAID ELECTROMAGNETIC BARRIER, A FIRST END CAP FOR CAPPING A FIRST LONGITUDINAL EXTREMITY OF SAID CENTRAL CYLINDRICAL MEMBER, A SECOND END CAP FOR CAPPING A SECOND LONGITUDINIAL EXTREMITY OF SAID CENTRAL CYLINDRICAL MEMBER, A PRIMARY COIL INSERTED IN SAID CENTRAL CYLINDRICAL MEMBER BETWEEN A FIRST SIDE OF SAID ELECTROMAGNETIC BARRIER AND SAID FIRST END CAP, A SECONDARY COIL INSERTED IN SAID CENTRAL CYLINDRICAL MEMBER BETWEEN A SECOND SIDE OF SAID ELECTROMAGNETIC BARRIER AND SAID SECOND END CAP, MEANS FOR MOUNTING THE TRANSFORMER INTO A SHIELDING ENCLOSURE, AND MEANS FOR ASSEMBLING THE TRANSFORMER INTO A COMPART UNITARY ASSEMBLY WHEREBY RADIOFREQUENCY POWER IS ATTENUATED AND CAPACITIVE AND COAXIAL ELECTRIC COUPLING ARE ELIMINATED.
Claim 2
Dependent Claim
162 words
A TRANSFORMER FOR REDUCING TO A NEGLIGIBLE LEVEL THE RADIO-FREQUENCY POWER TRANSMITTED WHILE ALLOWING OPERATIONS IN THE PASS-BAND COMPRISING AN ELONGATED CORE, AN ELECTROMAGNETIC BARRIER FIXEDLY POSITIONED AT APPROXIMATELY THE LINEAR CENTER OF SAID CORE, AN OUTER BODY HAVING A CENTRAL CYLINDRICAL MEMBER FIXEDLY POSITIONED AT APPROXIMATELY ITS INTERNAL LINEAR CENTER TO SAID ELECTROMAGNETIC BARRIER, A FIRST END CAP FOR CAPPING A FIRST LONGITUDINAL EXTREMITY OF SAID CENTRAL CYLINDRICAL MEMBER, A SECOND END CAP FOR CAPPING A SECOND LONGITUDINIAL EXTREMITY OF SAID CENTRAL CYLINDRICAL MEMBER, A PRIMARY COIL INSERTED IN SAID CENTRAL CYLINDRICAL MEMBER BETWEEN A FIRST SIDE OF SAID ELECTROMAGNETIC BARRIER AND SAID FIRST END CAP, A SECONDARY COIL INSERTED IN SAID CENTRAL CYLINDRICAL MEMBER BETWEEN A SECOND SIDE OF SAID ELECTROMAGNETIC BARRIER AND SAID SECOND END CAP, MEANS FOR MOUNTING THE TRANSFORMER INTO A SHIELDING ENCLOSURE, AND MEANS FOR ASSEMBLING THE TRANSFORMER INTO A COMPART UNITARY ASSEMBLY WHEREBY RADIOFREQUENCY POWER IS ATTENUATED AND CAPACITIVE AND COAXIAL ELECTRIC COUPLING ARE ELIMINATED.
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |