US3289074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for determining dielectric loss of coaxial cable by measuring the decrement of the test oscillation
Assignee: Post Office
•
Filing: 1963-05-16
•
Granted: 1966-11-29
•
Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jones Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:52
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/26; G01R27/2688; G01R27/2694; G01R27/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD OF TESTING CO-AXIAL CABLE BY MEASUREMENT OF THE POWER FACTOR OF ITS DIELECTRIC MATERIAL, INCLUDING, IN COMBINATION, THE STEPS OF: (I) SETTING UP, IN A REFERENCE PARALLEL RESONANT CIRCUIT INCLUDING A LOW-LOSS REFERENCE CAPACITOR AND AN INDUCTOR, A REFERENCE OSCILLATION INITIATED BY A GIVEN AMOUNT OF ENERGY AND REINFORCED BY SUPPLYING TO SAID CIRCUIT AN AMOUNT OF POWER THAT IS A FUNCTION OF THE ENERGY OF THE REFERENCE OSCILLATION AND JUST SUFFICIENT TO MAINTAIN SAID REFERENCE OSCILLATION IN AN UNDAMPED CONSTANT AMPLITUDE CONDITION IN SAID REFERENCE CIRCUIT; (II) THEN SUBSTITUTING FOR SAID REFERENCE CAPACITOR A TEST CAPACITOR COMPRISING A SPECIMEN OF CABLE TO BE TESTED AND HAVING A CAPACITANCE SIMILAR TO THAT OF THE REFERENCE CAPACITOR; (III) THEN SETTING UP IN THE TEST PARALLEL RESONANT CIRCIUT PROVIDED BY STEP (II) A TEST OSCILLATION HAVING
Claim 2
Independent Claim
136 words
A METHOD OF TESTING CO-AXIAL CABLE BY MEASUREMENT OF THE POWER FACTOR OF ITS DIELECTRIC MATERIAL, INCLUDING, IN COMBINATION, THE STEPS OF: (I) SETTING UP, IN A REFERENCE PARALLEL RESONANT CIRCUIT INCLUDING A LOW-LOSS REFERENCE CAPACITOR AND AN INDUCTOR, A REFERENCE OSCILLATION INITIATED BY A GIVEN AMOUNT OF ENERGY AND REINFORCED BY SUPPLYING TO SAID CIRCUIT AN AMOUNT OF POWER THAT IS A FUNCTION OF THE ENERGY OF THE REFERENCE OSCILLATION AND JUST SUFFICIENT TO MAINTAIN SAID REFERENCE OSCILLATION IN AN UNDAMPED CONSTANT AMPLITUDE CONDITION IN SAID REFERENCE CIRCUIT; (II) THEN SUBSTITUTING FOR SAID REFERENCE CAPACITOR A TEST CAPACITOR COMPRISING A SPECIMEN OF CABLE TO BE TESTED AND HAVING A CAPACITANCE SIMILAR TO THAT OF THE REFERENCE CAPACITOR; (III) THEN SETTING UP IN THE TEST PARALLEL RESONANT CIRCIUT PROVIDED BY STEP (II) A TEST OSCILLATION HAVING
References Cited (Backward Citations)
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US2422742A
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |