Patent US3266753A successfully refreshed from Google Patents.
US3266753A
Expired / Lapsed
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Automatic landing system
Assignee: Unisys Corp
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Filing: 1964-06-01
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Granted: 1966-08-16
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Gaylor Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:35
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
AN AUTOMATIC LANDING SYSTEM FOR GUIDING AN AIRCRAFT TO A LANDING ALONG A RADIO DEFINED COURSE COMPRISING, (A) RADIO RECEIVING MEANS FOR PROVIDING A FIRST CONTROL SIGNAL IN RESPONSE TO THE LATERAL DISPLACEMENT OF THE AIRCRAFT FROM SAID COURSE, (B) MEANS FOR PROVIDING A SECOND CONTROL SIGNAL REPRESENTATIVE OF THE LATERAL RATE OF DISPLACEMENT OF THE AIRCRAFT FROM SAID COURSE, (C) MEANS FOR PROVIDING A THIRD CONTROL SIGNAL REPRESENTATIVE OF THE HEADING OF THE AIRCRAFT WITH RESPECT TO THE HEADING OF A PREDETERMINED RUNWAY, (D) FIRST INTEGRATING MEANS RESPONSIVE TO SAID FIRST CONTROL SIGNAL FOR PROVIDING A FOURTH CONTROL SIGNAL REPRESENTATIVE OF THE INTEGRAL OF SAID FIRST CONTROL SIGNAL, (E) SECOND INTEGRATING MEANS RESPONSIVE TO SAID THIRD CONTROL SIGNAL FOR PROVIDING A FIFTH CONTROL SIGNAL REPRESENTATIVE OF THE INTEGRAL OF SAID THIRD CONTROL SIGNAL, (F) ROLL SERVO MEANS RESPONSIVE TO ALL OF SAID CONTROL SIGNALS FOR CONTROLLING THE SIDE SLIP OF SAID AIRCRAFT TO COMPENSATE FOR PREVAILING CROSS WIND CONDITIONS, AND (G) YAW SERVO MEANS RESPONSIVE TO SAID FIFTH CONTROL SIGNAL FOR CONTROLLING SAID AIRCRAFT YAW, IN ACCORDANCE THEREWITH WHEREBY SAID AIRCRAFT HEADING TENDS TO BE MAINTAINED IN ALIGNMENT WITH SAID RUNWAY HEADING.
Claim 2
Dependent Claim
193 words
AN AUTOMATIC LANDING SYSTEM FOR GUIDING AN AIRCRAFT TO A LANDING ALONG A RADIO DEFINED COURSE COMPRISING, (A) RADIO RECEIVING MEANS FOR PROVIDING A FIRST CONTROL SIGNAL IN RESPONSE TO THE LATERAL DISPLACEMENT OF THE AIRCRAFT FROM SAID COURSE, (B) MEANS FOR PROVIDING A SECOND CONTROL SIGNAL REPRESENTATIVE OF THE LATERAL RATE OF DISPLACEMENT OF THE AIRCRAFT FROM SAID COURSE, (C) MEANS FOR PROVIDING A THIRD CONTROL SIGNAL REPRESENTATIVE OF THE HEADING OF THE AIRCRAFT WITH RESPECT TO THE HEADING OF A PREDETERMINED RUNWAY, (D) FIRST INTEGRATING MEANS RESPONSIVE TO SAID FIRST CONTROL SIGNAL FOR PROVIDING A FOURTH CONTROL SIGNAL REPRESENTATIVE OF THE INTEGRAL OF SAID FIRST CONTROL SIGNAL, (E) SECOND INTEGRATING MEANS RESPONSIVE TO SAID THIRD CONTROL SIGNAL FOR PROVIDING A FIFTH CONTROL SIGNAL REPRESENTATIVE OF THE INTEGRAL OF SAID THIRD CONTROL SIGNAL, (F) ROLL SERVO MEANS RESPONSIVE TO ALL OF SAID CONTROL SIGNALS FOR CONTROLLING THE SIDE SLIP OF SAID AIRCRAFT TO COMPENSATE FOR PREVAILING CROSS WIND CONDITIONS, AND (G) YAW SERVO MEANS RESPONSIVE TO SAID FIFTH CONTROL SIGNAL FOR CONTROLLING SAID AIRCRAFT YAW, IN ACCORDANCE THEREWITH WHEREBY SAID AIRCRAFT HEADING TENDS TO BE MAINTAINED IN ALIGNMENT WITH SAID RUNWAY HEADING.
References Cited (Backward Citations)
US3120934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |