Patent US3197720A successfully refreshed from Google Patents.
US3197720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line having frequency reject band
Assignee: General Electric Co
•
Filing: 1961-10-17
•
Granted: 1965-07-27
•
Expires: 1981-10-17
Abstract
No abstract record available.
Inventors
- 👤 Rudolph A Dehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:54
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A TRANSMISSION LINE SYSTEM FOR TRANSMITTING HIGH FREQUENCY ELECTRICAL ENERGY AT A DESIRED FREQUENCYY BETWEEN A SOURCE AND A LOAD CIRCUIT CONNECTED TO THE TRANSMISSION LINE AND REJECTING ENERGY AT A REJECTION FREQUENCY COMPRISNG A PAIR OF PARALLEL CONDUCTORS, A PAIR OF FILTER CIRCUITS CONNECTED IN SERIES WITH SAID TRANSMISSION LINE IN SPACED RELATION ALONG THE TRANSMISSION LINE AND EACH COMPRISING A PAIR OF PARALLEL IMPEDANCES TUNED TO RESONANCE AT THE REJECTION FREQUENCY, THE FIRST OF SAID FILTER CIRCUITS BEING LOCATED ON SAID TRANSMISSION LINE NEARER SAID LOAD CIRCUIT, AND THE SECOND OF SAID FILTER CIRCUITS BEING LOCATED ON SAID TRANSMISSION LINE AT A POSITION NEARER THE END THEREOF TO WHICH THE SOURCE IS CONNECTED BY APPROXIMATELY 90 ELECTRICAL DEGREES OR AN ODD MULTIPLE THEREOF AT THE REJECTION FREQUENCY AND IMPEDANCE MEANS LOCATED IN SAID LINE ON THE SIDE OF SAID SECOND FILTER CIRCUIT REMOTE FROM SAID FIRST FILTER CIRCUIT FOR COMPENSATING AT THE DESIRED FREQUENCY FOR IMPEDANCE INSERTED IN SAID TRANSMISION LINE BY SAID FILTER CIRCUITS.
Claim 2
Dependent Claim
167 words
A TRANSMISSION LINE SYSTEM FOR TRANSMITTING HIGH FREQUENCY ELECTRICAL ENERGY AT A DESIRED FREQUENCYY BETWEEN A SOURCE AND A LOAD CIRCUIT CONNECTED TO THE TRANSMISSION LINE AND REJECTING ENERGY AT A REJECTION FREQUENCY COMPRISNG A PAIR OF PARALLEL CONDUCTORS, A PAIR OF FILTER CIRCUITS CONNECTED IN SERIES WITH SAID TRANSMISSION LINE IN SPACED RELATION ALONG THE TRANSMISSION LINE AND EACH COMPRISING A PAIR OF PARALLEL IMPEDANCES TUNED TO RESONANCE AT THE REJECTION FREQUENCY, THE FIRST OF SAID FILTER CIRCUITS BEING LOCATED ON SAID TRANSMISSION LINE NEARER SAID LOAD CIRCUIT, AND THE SECOND OF SAID FILTER CIRCUITS BEING LOCATED ON SAID TRANSMISSION LINE AT A POSITION NEARER THE END THEREOF TO WHICH THE SOURCE IS CONNECTED BY APPROXIMATELY 90 ELECTRICAL DEGREES OR AN ODD MULTIPLE THEREOF AT THE REJECTION FREQUENCY AND IMPEDANCE MEANS LOCATED IN SAID LINE ON THE SIDE OF SAID SECOND FILTER CIRCUIT REMOTE FROM SAID FIRST FILTER CIRCUIT FOR COMPENSATING AT THE DESIRED FREQUENCY FOR IMPEDANCE INSERTED IN SAID TRANSMISION LINE BY SAID FILTER CIRCUITS.
References Cited (Backward Citations)
US2178299A
Cited
US2183123A
Cited
US2270416A
Cited
US2297512A
Cited
US2470805A
Cited
US2411299A
Cited
US2408927A
Cited
US2438367A
Cited
US2421033A
Cited
US2557567A
Cited
US2515061A
Cited
US2724806A
Cited
US2686903A
Cited
US2816270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |