Patent US3374482A successfully refreshed from Google Patents.
US3374482A
Expired / Lapsed
US
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Radar dish in plastic casement
Assignee: United States Department of the Navy
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Filing: 1958-09-30
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Granted: 1968-03-19
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Expires: 1978-09-30
Abstract
No abstract record available.
Inventors
- 👤 Leo L Kielman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:49
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/141; H01Q15/142; H01Q17/00; H01Q17/001; H01Q3/00; H01Q3/12; H01Q3/16; H01Q3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A GYRO MOUNTED RADAR ANTENNA, A GIMBAL-MOUNTED SUPPORT, A GYRO ROTOR MOUNTED ON SAID SUPPORT, SAID ROTOR OPERABLE TO BE ROTATED AT HIGH-SPEEDS, AN ANTENNA-DISH ASSEMBLY HAVING A LARGE CENTRAL APERTURE MOUNTED ON SAID GYRO ROTOR, SAID ANTENNA-DISH ASSEMBLY COMPRISING A METALLIZED SPHERICAL REFLECTIVE SURFACE IMBEDDED AT A CANT WITHIN A CONCENTRIC PLASTIC CASEMENT, AND OPERABLE TO ELIMINATE AIR PUMPING ACTION DUE TO CANT OF THE SPHERICAL REFLECTIVE SURFACE AND REDUCE MASS UNBALANCE, SAID ANTENNA-DISH ASSEMBLY AND ROTOR OPERABLE TO ROTATE TOGETHER ABOUT THE GYRO ROTOR SPIN AXIS, SAID GIMBAL-MOUNTED SUPPORT SUPPORTING A DIPOLE TYPE ANTENNA AND A FLAT RADAR ENERGY REFLECTOR CONCENTRIC WITH THE APERTURE IN SAID ANTENNA-DISH ASSEMBLY.
Claim 2
Dependent Claim
111 words
IN A GYRO MOUNTED RADAR ANTENNA, A GIMBAL-MOUNTED SUPPORT, A GYRO ROTOR MOUNTED ON SAID SUPPORT, SAID ROTOR OPERABLE TO BE ROTATED AT HIGH-SPEEDS, AN ANTENNA-DISH ASSEMBLY HAVING A LARGE CENTRAL APERTURE MOUNTED ON SAID GYRO ROTOR, SAID ANTENNA-DISH ASSEMBLY COMPRISING A METALLIZED SPHERICAL REFLECTIVE SURFACE IMBEDDED AT A CANT WITHIN A CONCENTRIC PLASTIC CASEMENT, AND OPERABLE TO ELIMINATE AIR PUMPING ACTION DUE TO CANT OF THE SPHERICAL REFLECTIVE SURFACE AND REDUCE MASS UNBALANCE, SAID ANTENNA-DISH ASSEMBLY AND ROTOR OPERABLE TO ROTATE TOGETHER ABOUT THE GYRO ROTOR SPIN AXIS, SAID GIMBAL-MOUNTED SUPPORT SUPPORTING A DIPOLE TYPE ANTENNA AND A FLAT RADAR ENERGY REFLECTOR CONCENTRIC WITH THE APERTURE IN SAID ANTENNA-DISH ASSEMBLY.
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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |