US3069680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferrite-loaded cavity beam-shifting antenna
Assignee: Individual
•
Filing: 1960-07-26
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Granted: 1962-12-18
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Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 Elwin W Seeley
- 👤 Douglas M Moncrieff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:01
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A BEAM SHIFTING ANTENNA COMPRISING A SECTION OF WAVEGUIDE HAVING A PLURALITY OF RADIATING SLOTS IN ONE SIDE THEREOF, A PLURALITY OF COUPLING SLOTS IN THE SIDE OF SAID WAVEGUIDE OPPOSITE SAID RADIATING SLOTS AND POSITIONED ELECTRICALLY BETWEEN SAID RADIATING SLOTS ALONG A LENGTH OF SAID WAVEGUIDE, A PLURALITY OF FERRITE LOADED CAVITIES MOUNTED ON SAID SECTION OF WAVEGUIDE AND COUPLED THERETO BY MEANS OF SAID COUPLING SLOTS, EACH OF SAID FERRITE LOADED CAVITIES CONSISTING OF A METAL CYLINDER HAVING A FOAM-PLASTIC CUP-SHAPED SUPPORT THEREIN SUPPORTING A FERRITE CORE, A SOLENOID WINDING ABOUT EACH OF SAID FERRITE LOADED CAVITIES, SAID SOLENOID WOUND CAVITIES BEING OPERABLE TO VARY THE ELECTRICAL SPACING BETWEEN SAID RADIATING SLOTS BY APPLYING VARYING AMOUNTS OF CUR-
Claim 2
Dependent Claim
120 words
A BEAM SHIFTING ANTENNA COMPRISING A SECTION OF WAVEGUIDE HAVING A PLURALITY OF RADIATING SLOTS IN ONE SIDE THEREOF, A PLURALITY OF COUPLING SLOTS IN THE SIDE OF SAID WAVEGUIDE OPPOSITE SAID RADIATING SLOTS AND POSITIONED ELECTRICALLY BETWEEN SAID RADIATING SLOTS ALONG A LENGTH OF SAID WAVEGUIDE, A PLURALITY OF FERRITE LOADED CAVITIES MOUNTED ON SAID SECTION OF WAVEGUIDE AND COUPLED THERETO BY MEANS OF SAID COUPLING SLOTS, EACH OF SAID FERRITE LOADED CAVITIES CONSISTING OF A METAL CYLINDER HAVING A FOAM-PLASTIC CUP-SHAPED SUPPORT THEREIN SUPPORTING A FERRITE CORE, A SOLENOID WINDING ABOUT EACH OF SAID FERRITE LOADED CAVITIES, SAID SOLENOID WOUND CAVITIES BEING OPERABLE TO VARY THE ELECTRICAL SPACING BETWEEN SAID RADIATING SLOTS BY APPLYING VARYING AMOUNTS OF CUR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |