US3092357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic blind landing systems for aircraft
Assignee: Individual
•
Filing: 1960-07-11
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Granted: 1963-06-04
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Prescott Thomas Wright
- 👤 Scrimshaw Frank Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:47
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/0202
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
AN AIRCRAFT AUTOMATIC LANDING SYSTEM HAVING AUTOMATIC PILOT MEANS INCLUDING HEADING SELECTOR MEANS FOR SELECTION OF A DESIRED HEADING, SIGNAL CONTROLLED MEANS FOR APPLYING RUDDER, SIGNAL CONTROLLED MEANS FOR APPLYING AILERON, RUDDER SIGNAL MEANS AFFORDING A SIGNAL DEPENDENT ON HEADING DISPLACEMENT FROM A SELECTED HEADING AND OPERATIVE TOGETHER WITH SAID RUDDER APPLYING MEANS TO APPLY RUDDER AT A RATE PROPORTIONAL TO SUCH HEADING DISPLACEMENT, AND AILERON SIGNAL MEANS AFFORDING TWO AILERON SIGNAL COMPONENTS PROPORTIONAL RESPECTIVELY ONLY TO RATE OF CHANGE OF BANK ANGLE AND TO RATE OF CHANGE OF HEADING AND BEING OPERATIVE TOGETHER WITH SAID AILERON APPLYING MEANS TO APPLY AILERON; THE SYSTEM ALSO HAVING HEIGHT RESPONSIVE CONTROL MEANS FOR RENDERING SAID AUTOMATIC PILOT MEANS OPERATIVE AT AND BELOW A PREDETERMINED LOW HEIGHT TO REMOVE WITHOUT UNDUE BANKING ANY HEADING DISPLACEMENT FROM A SELECTED HEADING AND MAINTAIN SUBSTANTIAL RUDDER APPLIED AT TOUCH DOWN.
Claim 2
Dependent Claim
144 words
AN AIRCRAFT AUTOMATIC LANDING SYSTEM HAVING AUTOMATIC PILOT MEANS INCLUDING HEADING SELECTOR MEANS FOR SELECTION OF A DESIRED HEADING, SIGNAL CONTROLLED MEANS FOR APPLYING RUDDER, SIGNAL CONTROLLED MEANS FOR APPLYING AILERON, RUDDER SIGNAL MEANS AFFORDING A SIGNAL DEPENDENT ON HEADING DISPLACEMENT FROM A SELECTED HEADING AND OPERATIVE TOGETHER WITH SAID RUDDER APPLYING MEANS TO APPLY RUDDER AT A RATE PROPORTIONAL TO SUCH HEADING DISPLACEMENT, AND AILERON SIGNAL MEANS AFFORDING TWO AILERON SIGNAL COMPONENTS PROPORTIONAL RESPECTIVELY ONLY TO RATE OF CHANGE OF BANK ANGLE AND TO RATE OF CHANGE OF HEADING AND BEING OPERATIVE TOGETHER WITH SAID AILERON APPLYING MEANS TO APPLY AILERON; THE SYSTEM ALSO HAVING HEIGHT RESPONSIVE CONTROL MEANS FOR RENDERING SAID AUTOMATIC PILOT MEANS OPERATIVE AT AND BELOW A PREDETERMINED LOW HEIGHT TO REMOVE WITHOUT UNDUE BANKING ANY HEADING DISPLACEMENT FROM A SELECTED HEADING AND MAINTAIN SUBSTANTIAL RUDDER APPLIED AT TOUCH DOWN.
Claim 3
Dependent Claim
152 words
AN AIRCRAFT AUTOMATIC LANDING SYSTEM INCLUDING SIGNAL CONTROLLED RUDDER APPLYING MEANS, SIGNAL CONTROLLED AILERON APPLYING MEANS, MEANS FOR SELECTING A DESIRED HEADING, RUDDER SIGNAL MEANS, AILERON SIGNAL MEANS AND HEIGHT RESPONSIVE CONTROL MEANS WHEREBY AT AND BELOW A PREDETERMINED LOW HEIGHT JUST PRIOR TO TOUCH DOWN SAID RUDDER APPLYING MEANS ARE OPERATIVE UNDER THE CONTROL OF AT LEAST ONE SIGNAL FROM SAID RUDDER SIGNAL MEANS TO APPLY RUDDER AT A RATE DEPENDENT UPON HEADING DISPLACEMENT FROM A SELECTED HEADING, AND SAID AILERON APPLYING MEANS ARE OPERATIVE TO APPLY AILERON UNDER THE CONTROL ONLY OF A SIGNAL FROM SAID AILERON SIGNAL MEANS WHICH IS DEPENDENT UPON THE SUM OF RATE OF CHANGE OF BANK ANGLE AND RATE OF CHANGE OF HEADING DISPLACEMENT FROM A SELECTED HEADING, SAID HEIGHT RESPONSIVE CONTROL MEANS THUS OPERATIVE TO REMOVE WITHOUT UNDUE BANKING ANY HEADING DISPLACEMENT FROM A SELECTED HEADING AND MAINTAIN SUBSTANTIAL APPLIED RUDDER AT TOUCH DOWN.
Claim 4
Dependent Claim
152 words
AN AIRCRAFT AUTOMATIC LANDING SYSTEM INCLUDING SIGNAL CONTROLLED RUDDER APPLYING MEANS, SIGNAL CONTROLLED AILERON APPLYING MEANS, MEANS FOR SELECTING A DESIRED HEADING, RUDDER SIGNAL MEANS, AILERON SIGNAL MEANS AND HEIGHT RESPONSIVE CONTROL MEANS WHEREBY AT AND BELOW A PREDETERMINED LOW HEIGHT JUST PRIOR TO TOUCH DOWN SAID RUDDER APPLYING MEANS ARE OPERATIVE UNDER THE CONTROL OF AT LEAST ONE SIGNAL FROM SAID RUDDER SIGNAL MEANS TO APPLY RUDDER AT A RATE DEPENDENT UPON HEADING DISPLACEMENT FROM A SELECTED HEADING, AND SAID AILERON APPLYING MEANS ARE OPERATIVE TO APPLY AILERON UNDER THE CONTROL ONLY OF A SIGNAL FROM SAID AILERON SIGNAL MEANS WHICH IS DEPENDENT UPON THE SUM OF RATE OF CHANGE OF BANK ANGLE AND RATE OF CHANGE OF HEADING DISPLACEMENT FROM A SELECTED HEADING, SAID HEIGHT RESPONSIVE CONTROL MEANS THUS OPERATIVE TO REMOVE WITHOUT UNDUE BANKING ANY HEADING DISPLACEMENT FROM A SELECTED HEADING AND MAINTAIN SUBSTANTIAL APPLIED RUDDER AT TOUCH DOWN.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |