US3071769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four horn feed bridge
Assignee: North American Aviation Corp
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Filing: 1958-01-16
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Granted: 1963-01-01
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Grant M Randall
- 👤 Dean B Anderson
- 👤 Stanley M Kerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:42
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/44; G01S13/4409; H; H01; H01Q; H01Q25/00; H01Q25/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
IN COMBINATION IN AN ANTENNA FEED SYSTEM, FOUR CHANNELS, TWO OF SAID CHANNELS DISPOSED IN PARALLEL AND SIDE BY SIDE WITH THE REMAINING TWO CHANNEL, EACH OF SAID CHANNELS HAVING AN APERTURE, SAID APERTURES DISPOSED SO AS TO PROVIDE RADIATION PATTERNS HAVING THEIR MAXIMUM ALONG SUBSTANTIALLY PARALLEL AXES IN AT LEAST A FIRST PLANE AND RADIATION PATTERNS HAVING THEIR MAXIMUM ALONG DIVERGING AXES IN A PLANE ORTHOGONAL TO SAID FIRST PLANE, MEANS FOR SUMMING THE IN PHASE COMPONENTS OF RADIATION RECEIVED IN SAID APERTURES PROVIDING A SIGNAL INDICATING RANGE, MEANS FOR PROVIDING A SIGNAL INDICATING THE DIFFERENCE IN PHASE BETWEEN SIGNALS RECEIVED BY A FIRST APERTURE AND A SECOND APERTURE, MEANS PROVIDING SIGNALS INDICATING THE DIFFERENCE IN PHASE BETWEEN SIGNALS RECEIVED BY SAID FIRST APERTURE AND A FOURTH APERTURE AND MEANS FOR SUMMING SAID SIGNALS INDICATING DIFFERENCE IN PHASE, SAID MEANS FOR PROVIDING AND SAID MEANS FOR SUMMING DISPOSED WITHIN SAID PARALLEL PORTIONS OF SAID CHANNELS.
References Cited (Backward Citations)
US2830288A
Cited
US2585173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |