US3123820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
harpell
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:02
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A HEIGHT-FINDING SYSTEM HAVING A ROTATABLE ANTENNA, APPARATUS ADAPTED TO PROVIDE A DIGITAL SIGNAL RESPONSIVE TO ANTENNA AZIMUTH ROTATION COMPRISING A STEEL WHEEL HAVING A PLURALITY OF UNIFORMLY DISPOSED SERRATIONS ON THE OUTER PERIPHERY THEREOF, MEANS FOR ROTATING SAID WHEEL ON THE MAJOR AXIS THEREOF IN RESPONSE TO THE ROTATION OF SAID ANTENNA, A MAGNETIC PICK-UP, SAID MAGNETIC PICK-UP BEING PROXIMATE TO THE OUTER PERIPHERY OF SAID STEEL WHEEL AND ADAPTED TO GENERATE AN ALTERNATING SIGNAL VOLTAGE IN RESPONSE TO ANY ROTATION THEREOF, A MULTIAR, SAID MULTIAR BEING ACTUATED BY THE OUTPUT OF SAID MAGNETIC PICK-UP, AND A PAIR OF MULTIVIBRATORS, ONE BEING OF THE MONO-STABLE TYPE, THE OTHER BEING OF THE BI-STABLE TYPE, SAID MONO-STABLE MULTIVIBRATOR BEING ADAPTED TO GENERATE A DIGITAL OUTPUT SIGNAL RESPONSIVE TO THE OUTPUT OF SAID MULTIAR.
Claim 2
Dependent Claim
133 words
IN A HEIGHT-FINDING SYSTEM HAVING A ROTATABLE ANTENNA, APPARATUS ADAPTED TO PROVIDE A DIGITAL SIGNAL RESPONSIVE TO ANTENNA AZIMUTH ROTATION COMPRISING A STEEL WHEEL HAVING A PLURALITY OF UNIFORMLY DISPOSED SERRATIONS ON THE OUTER PERIPHERY THEREOF, MEANS FOR ROTATING SAID WHEEL ON THE MAJOR AXIS THEREOF IN RESPONSE TO THE ROTATION OF SAID ANTENNA, A MAGNETIC PICK-UP, SAID MAGNETIC PICK-UP BEING PROXIMATE TO THE OUTER PERIPHERY OF SAID STEEL WHEEL AND ADAPTED TO GENERATE AN ALTERNATING SIGNAL VOLTAGE IN RESPONSE TO ANY ROTATION THEREOF, A MULTIAR, SAID MULTIAR BEING ACTUATED BY THE OUTPUT OF SAID MAGNETIC PICK-UP, AND A PAIR OF MULTIVIBRATORS, ONE BEING OF THE MONO-STABLE TYPE, THE OTHER BEING OF THE BI-STABLE TYPE, SAID MONO-STABLE MULTIVIBRATOR BEING ADAPTED TO GENERATE A DIGITAL OUTPUT SIGNAL RESPONSIVE TO THE OUTPUT OF SAID MULTIAR.
References Cited (Backward Citations)
US3060427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |