US3235677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangements for locating faults in communication lines
Assignee: Felten and Guilleaume Fernmeldeanlagen GmbH
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Filing: 1963-05-14
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Granted: 1966-02-15
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:32
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/46; G; G01; G01R; G01R31/00; G01R31/08; H02; H02K; H02K3/00; H02K3/04; H02K3/22; H04B17/00; H04B17/40; H04B17/407; H04B17/409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN A COMMUNICATION LINE SYSTEM INCLUDING AT LEAST TWO UNMANNED REPEATER STATIONS INSERTED IN SERIES-CONNECTION IN THE COMMUNICATION LINES OF THE SYSTEM FOR BEING SUPPLIED THERETHROUGH WITH DIRECT CURRENT FOR OPERATING THE REPEATER AMPLIFIER, A CIRCUIT ARRANGEMENT ADAPTED FOR LOCATING FAULTS IN THE LINE SYSTEM, COMPRISING FOR EACH REPEATER STATION, IN COMBINATION, PRIMARY RECTIFIER OF THE PARCONNECTED IN SERIES WITH THE REPEATER AMPLIFIER OF THE PARTICULAR REPEATER STATION AND BEING CONDUCTIVE ONLY IN THE DIRECTION OF NORMAL DIRECT CURRENT FLOW SUPPLYING SAID AMPLIFIER; AND BY-PASS CIRCUIT MEANS BY-PASSING THE SERIESCOMBINATION FORMED BY SAID PRIMARY RECTIFIER MEANS AND SAID REPEATER AMPLIFIER AND CONNECTED BETWEEN THE TWO COMMUNICATION LINES AND INCLUDING SECONDARY RECTIFIER MEANS NON-CONDUCTIVE IN SAID DIRECTION OF NORMAL DIRECT CURRENT FLOW, BUT PERMITING DIRECT CURRENT FLOW THROUGH SAID BY-PASS CIRCUIT MEANS AND THROUGH ADJOINING PORTIONS OF SAID TWO COMMUNICATION LINES UNDER EXCLUSION OF SAID SERIES-COMBINATION WHEN THE DIRECTION OF DIRECT CURRENT FLOW THROUGH SAID COMMUNICATION LINES IS REVERSED.
Claim 2
Dependent Claim
158 words
IN A COMMUNICATION LINE SYSTEM INCLUDING AT LEAST TWO UNMANNED REPEATER STATIONS INSERTED IN SERIES-CONNECTION IN THE COMMUNICATION LINES OF THE SYSTEM FOR BEING SUPPLIED THERETHROUGH WITH DIRECT CURRENT FOR OPERATING THE REPEATER AMPLIFIER, A CIRCUIT ARRANGEMENT ADAPTED FOR LOCATING FAULTS IN THE LINE SYSTEM, COMPRISING FOR EACH REPEATER STATION, IN COMBINATION, PRIMARY RECTIFIER OF THE PARCONNECTED IN SERIES WITH THE REPEATER AMPLIFIER OF THE PARTICULAR REPEATER STATION AND BEING CONDUCTIVE ONLY IN THE DIRECTION OF NORMAL DIRECT CURRENT FLOW SUPPLYING SAID AMPLIFIER; AND BY-PASS CIRCUIT MEANS BY-PASSING THE SERIESCOMBINATION FORMED BY SAID PRIMARY RECTIFIER MEANS AND SAID REPEATER AMPLIFIER AND CONNECTED BETWEEN THE TWO COMMUNICATION LINES AND INCLUDING SECONDARY RECTIFIER MEANS NON-CONDUCTIVE IN SAID DIRECTION OF NORMAL DIRECT CURRENT FLOW, BUT PERMITING DIRECT CURRENT FLOW THROUGH SAID BY-PASS CIRCUIT MEANS AND THROUGH ADJOINING PORTIONS OF SAID TWO COMMUNICATION LINES UNDER EXCLUSION OF SAID SERIES-COMBINATION WHEN THE DIRECTION OF DIRECT CURRENT FLOW THROUGH SAID COMMUNICATION LINES IS REVERSED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |