US3146409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple coupler employing resonant effects to isolate the load circuits from each other
Assignee: Lockheed Martin Corp
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Filing: 1960-10-27
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Granted: 1964-08-25
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Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 Richard G Lalmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:41
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/48; H03H7/482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A BROAD BAND MULTIPLE COUPLER COMPRISING, IN COMBINATION, AN AUTO-TRANSFORMER HAVING FIRST AND SECOND WINDINGS, THE TURNS RATIO OF SAID WINDINGS BEING SUBSTANTIALLY UNITY, SAID TRANSFORMER HAVING A CENTER TAP AND FIRST AND SECOND END TERMINALS ON SAID FIRST AND SECOND WINDINGS RESPECTIVELY WHICH MAY BE CONNECTED TO RESPECTIVELY SEPARATE LOADS, A PARALLEL BRANCH CONNECTED BETWEEN SAID FIRST AND SECOND TERMINALS, A SOURCE HAVING AN IMPEDANCE CONNECTED BETWEEN SAID CENTER TAP AND A COMMON REFERENCE POINT, SAID SOURCE PROVIDING ENERGY OVER A BROAD RANGE OF FREQUENCIES BETWEEN A PREDETERMINED FIRST AND SECOND FREQUENCY, SAID BRANCH WHEN REFERRED ACROSS SAID FIRST WINDING HAVING AN EFFECTIVE IMPEDANCE, AT SAID FIRST FREQUENCY, SUBSTANTIALLY EQUAL TO THE IMPEDANCE OF SAID SOURCE, SAID BRANCH HAVING A REACTANCE COMPONENT SUFFICIENT TO FORM A PARALLEL RESONANCE CIRCUIT WITH THE IMPEDANCES OF SAID WINDINGS BETWEEN SAID FIRST AND SECOND END TERMINALS AT SAID SECOND FRE-
Claim 2
Dependent Claim
147 words
A BROAD BAND MULTIPLE COUPLER COMPRISING, IN COMBINATION, AN AUTO-TRANSFORMER HAVING FIRST AND SECOND WINDINGS, THE TURNS RATIO OF SAID WINDINGS BEING SUBSTANTIALLY UNITY, SAID TRANSFORMER HAVING A CENTER TAP AND FIRST AND SECOND END TERMINALS ON SAID FIRST AND SECOND WINDINGS RESPECTIVELY WHICH MAY BE CONNECTED TO RESPECTIVELY SEPARATE LOADS, A PARALLEL BRANCH CONNECTED BETWEEN SAID FIRST AND SECOND TERMINALS, A SOURCE HAVING AN IMPEDANCE CONNECTED BETWEEN SAID CENTER TAP AND A COMMON REFERENCE POINT, SAID SOURCE PROVIDING ENERGY OVER A BROAD RANGE OF FREQUENCIES BETWEEN A PREDETERMINED FIRST AND SECOND FREQUENCY, SAID BRANCH WHEN REFERRED ACROSS SAID FIRST WINDING HAVING AN EFFECTIVE IMPEDANCE, AT SAID FIRST FREQUENCY, SUBSTANTIALLY EQUAL TO THE IMPEDANCE OF SAID SOURCE, SAID BRANCH HAVING A REACTANCE COMPONENT SUFFICIENT TO FORM A PARALLEL RESONANCE CIRCUIT WITH THE IMPEDANCES OF SAID WINDINGS BETWEEN SAID FIRST AND SECOND END TERMINALS AT SAID SECOND FRE-
References Cited (Backward Citations)
US2115059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |