Patent US2181728A successfully refreshed from Google Patents.
US3084342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracking antenna with gyroscopic control
Assignee: The General Electric Company PLC
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Filing: 1958-12-08
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Granted: 1963-04-02
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Expires: 1978-12-08
Abstract
No abstract record available.
Inventors
- 👤 Fuller Hubert David
- 👤 Sewell Arthur David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/12; H01Q1/00; H01Q1/12; H01Q1/18; H01Q3/16; H01Q3/20; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1218; Y10T74/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
250 words
AN AERIAL SYSTEM COMPRISING A PRIMARY AERIAL FOR RADIATING A BEAM OF ELECTROMAGNETIC WAVES, A PLANE REFLECTOR FOR REFLECTING THE BEAM OF ELECTROMAGNETIC WAVES RADIATED BY THE PRIMARY AERIAL, MEANS TO MOUNT SAID REFLECTOR FOR ANGULAR DISPLACEMENT ABOUT ONE AXIS OF TWO MUTUALLY PERPENDICULAR AXES, SAID ONE AXIS BEING ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID REFLECTOR, ABOUT THE OTHER AXIS OF SAID TWO AXES, A MEMBER, MEANS TO MOUNT SAID MEMBER FOR ANGULAR DISPLACEMENT ABOUT A FIRST AXIS OF A SYSTEM OF THREE AXES, SAID FIRST AXIS BEING PERPENDICULAR TO, AND ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID MEMBER ABOUT, A SECOND AXIS OF SAID THREE AXES, AND SAID SECOND AXIS BEING PERPENDICULAR TO, AND ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID FIRST AXIS AND SAID MEMBER ABOUT, A THIRD AXIS OF SAID THREE AXES, MEANS RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID REFLECTOR ABOUT SAID ONE AXIS OF SAID TWO AXES TO ANGULARLY DISPLACE SAID FIRST AXIS ABOUT SAID SECOND AXIS BY DOUBLE THE DISPLACEMENT ANGLE OF SAID FIRST MEMBER ABOUT SAID ONE AXIS, AND MEANS RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID REFLECTOR ABOUT SAID OTHER AXIS OF SAID TWO AXES TO ANGULARLY DISPLACE SAID MEMBER AND SAID SECOND AXIS ABOUT SAID FIRST AXIS AND SAID THIRD AXIS RESPECTIVELY BY ANGLES WHICH ARE BOTH EQUAL TO THE DISPLACEMENT ANGLE OF SAID FIRST MEMBER ABOUT SAID OTHER AXIS, WHEREBY SAID MEMBER IS MAINTAINED IN A PREDETERMINED ANGULAR RELATIONSHIP TO THE DIRECTION IN WHICH SAID BEAM OF ELECTROMAGNETIC WAVES IS REFLECTED FROM THE REFLECTOR.
Claim 2
Dependent Claim
250 words
AN AERIAL SYSTEM COMPRISING A PRIMARY AERIAL FOR RADIATING A BEAM OF ELECTROMAGNETIC WAVES, A PLANE REFLECTOR FOR REFLECTING THE BEAM OF ELECTROMAGNETIC WAVES RADIATED BY THE PRIMARY AERIAL, MEANS TO MOUNT SAID REFLECTOR FOR ANGULAR DISPLACEMENT ABOUT ONE AXIS OF TWO MUTUALLY PERPENDICULAR AXES, SAID ONE AXIS BEING ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID REFLECTOR, ABOUT THE OTHER AXIS OF SAID TWO AXES, A MEMBER, MEANS TO MOUNT SAID MEMBER FOR ANGULAR DISPLACEMENT ABOUT A FIRST AXIS OF A SYSTEM OF THREE AXES, SAID FIRST AXIS BEING PERPENDICULAR TO, AND ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID MEMBER ABOUT, A SECOND AXIS OF SAID THREE AXES, AND SAID SECOND AXIS BEING PERPENDICULAR TO, AND ARRANGED FOR ANGULAR DISPLACEMENT WITH SAID FIRST AXIS AND SAID MEMBER ABOUT, A THIRD AXIS OF SAID THREE AXES, MEANS RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID REFLECTOR ABOUT SAID ONE AXIS OF SAID TWO AXES TO ANGULARLY DISPLACE SAID FIRST AXIS ABOUT SAID SECOND AXIS BY DOUBLE THE DISPLACEMENT ANGLE OF SAID FIRST MEMBER ABOUT SAID ONE AXIS, AND MEANS RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID REFLECTOR ABOUT SAID OTHER AXIS OF SAID TWO AXES TO ANGULARLY DISPLACE SAID MEMBER AND SAID SECOND AXIS ABOUT SAID FIRST AXIS AND SAID THIRD AXIS RESPECTIVELY BY ANGLES WHICH ARE BOTH EQUAL TO THE DISPLACEMENT ANGLE OF SAID FIRST MEMBER ABOUT SAID OTHER AXIS, WHEREBY SAID MEMBER IS MAINTAINED IN A PREDETERMINED ANGULAR RELATIONSHIP TO THE DIRECTION IN WHICH SAID BEAM OF ELECTROMAGNETIC WAVES IS REFLECTED FROM THE REFLECTOR.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |