Patent US3219948A successfully refreshed from Google Patents.
US3219948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable power divider or combiner for radio frequency applications
Assignee: Radiation Inc
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Filing: 1961-10-30
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Granted: 1965-11-23
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 La Vergne E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:35
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/04; H03; H03H; H03H7/00; H03H7/48; H03H7/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A SYSTEM FOR VARIABLY SUPPLYING R.F. POWER BETWEEN A PLURALITY OF TERMINALS AND A COMMON TERMINAL COMPRISING A PLURALITY OF VARIABLE CHARACTERISTIC IMPEDANCE TRANSMISSION LINES, SAID LINES BEING SEPARATELY CONNECTED BETWEEN EACH OF SAID PLURALITY OF TERMINALS AND SAID COMMON TERMINAL, A GROUND PLANE CONDUCTOR COMMON TO ALL OF SAID LINES EXTENDING BETWEEN SAID PLURALITY OF TERMINALS AND SAID COMMON TERMINAL, EACH OF SAID LINES INCLUDING A SIGNAL CARRYING CONDUCTOR ELECTROMAGNETICALLY COUPLED TO SAID GROUND PLANE CONDUCTOR AND EXTENDING THE LENGTH OF ITS ASSOCIATED LINE IN SPACED RELATIONSHIP TO SAID GROUND PLANE CONDUCTOR, AN ELECTRICALLY CONDUCTIVE MEMBER CLOSELY COUPLED TO SAID GROUND PLANE CONDUCTOR ONLY BY ELECTROMAGNETIC COUPLING, SAID SIGNAL CARRYING CONDUCTORS BEING POSITIONED BETWEEN SAID GROUND PLANE CONDUCTOR AND SAID CONDUCTIVE ELEMENTS, AND MEANS FOR MOVING SAID ELECTRICALLY CONDUCTIVE MEMBER TRANSVERSELY RELATIVE TO THE LENGTH OF SAID SIGNAL CARRYING CONDUCTORS TO VARY THE ELECTROMAGNETIC COUPLING BETWEEN SAID GROUND PLANE AND SIGNAL CARRYING CONDUCTORS.
Claim 2
Independent Claim
154 words
A SYSTEM FOR VARIABLY SUPPLYING R.F. POWER BETWEEN A PLURALITY OF TERMINALS AND A COMMON TERMINAL COMPRISING A PLURALITY OF VARIABLE CHARACTERISTIC IMPEDANCE TRANSMISSION LINES, SAID LINES BEING SEPARATELY CONNECTED BETWEEN EACH OF SAID PLURALITY OF TERMINALS AND SAID COMMON TERMINAL, A GROUND PLANE CONDUCTOR COMMON TO ALL OF SAID LINES EXTENDING BETWEEN SAID PLURALITY OF TERMINALS AND SAID COMMON TERMINAL, EACH OF SAID LINES INCLUDING A SIGNAL CARRYING CONDUCTOR ELECTROMAGNETICALLY COUPLED TO SAID GROUND PLANE CONDUCTOR AND EXTENDING THE LENGTH OF ITS ASSOCIATED LINE IN SPACED RELATIONSHIP TO SAID GROUND PLANE CONDUCTOR, AN ELECTRICALLY CONDUCTIVE MEMBER CLOSELY COUPLED TO SAID GROUND PLANE CONDUCTOR ONLY BY ELECTROMAGNETIC COUPLING, SAID SIGNAL CARRYING CONDUCTORS BEING POSITIONED BETWEEN SAID GROUND PLANE CONDUCTOR AND SAID CONDUCTIVE ELEMENTS, AND MEANS FOR MOVING SAID ELECTRICALLY CONDUCTIVE MEMBER TRANSVERSELY RELATIVE TO THE LENGTH OF SAID SIGNAL CARRYING CONDUCTORS TO VARY THE ELECTROMAGNETIC COUPLING BETWEEN SAID GROUND PLANE AND SIGNAL CARRYING CONDUCTORS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |