Patent US4478433A successfully refreshed from Google Patents.
Patent US3263191A successfully refreshed from Google Patents.
US3263191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broad band toroid r.f. transformer
Assignee: Individual
•
Filing: 1964-06-30
•
Granted: 1966-07-26
•
Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Edward N Arvonio
- 👤 Roads Almshouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:54
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2895
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A BROAD BAND RATIO FREQUENCY TRANSFORMER FOR OPERATION AT A PREDETERMINED FREQUENCY RANGE AND AT HIGH POWER LEVELS AND HIGH INPUT TO OUTPUT IMPEDANCE RATIOS COMPRISING: A TOROID CORE; A FIRST WINDING WOUND ON SAID CORE; A SECOND WINDING ELECTRICALLY IN SERIES WITH SAID FIRST WINDING AND WOUND DIRECTLY ON SAID CORE IN CLOSE PARALLEL RELATIONSHIP WITH SAID FIRST WINDING, SAID FIRST AND SECOND WINDINGS BEING ADJUSTED WITH RESPECT TO EACH OTHER AROUND SAID CORE TO RESONATE AT THE CENTER OF SAID FREQUENCY RANGE AND COMPRISING THE PRIMARY OF SAID TRANSFORMER; THE INDUCTANCE AND CAPACITANCE OF SAID FIRST AND SECOND WINDINGS BEING SELECTED TO APPEAR AS AN ELECTRICAL QUARTER WAVE TRANSFORMER AT SAID FREQUENCY RANGE; AND A THIRD WINDING WOUND OVER SAID FIRST AND SECOND WINDINGS AND COMPRISING THE SECONDARY OF SAID TRANSFORMER.
Claim 2
Dependent Claim
133 words
A BROAD BAND RATIO FREQUENCY TRANSFORMER FOR OPERATION AT A PREDETERMINED FREQUENCY RANGE AND AT HIGH POWER LEVELS AND HIGH INPUT TO OUTPUT IMPEDANCE RATIOS COMPRISING: A TOROID CORE; A FIRST WINDING WOUND ON SAID CORE; A SECOND WINDING ELECTRICALLY IN SERIES WITH SAID FIRST WINDING AND WOUND DIRECTLY ON SAID CORE IN CLOSE PARALLEL RELATIONSHIP WITH SAID FIRST WINDING, SAID FIRST AND SECOND WINDINGS BEING ADJUSTED WITH RESPECT TO EACH OTHER AROUND SAID CORE TO RESONATE AT THE CENTER OF SAID FREQUENCY RANGE AND COMPRISING THE PRIMARY OF SAID TRANSFORMER; THE INDUCTANCE AND CAPACITANCE OF SAID FIRST AND SECOND WINDINGS BEING SELECTED TO APPEAR AS AN ELECTRICAL QUARTER WAVE TRANSFORMER AT SAID FREQUENCY RANGE; AND A THIRD WINDING WOUND OVER SAID FIRST AND SECOND WINDINGS AND COMPRISING THE SECONDARY OF SAID TRANSFORMER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |