Patent US3719337A successfully refreshed from Google Patents.
US3719337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flight control apparatus for maintaining maximum ground speed while within the jet stream
Assignee: Individual
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Filing: 1971-06-14
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Granted: 1973-03-06
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Expires: 1991-06-14
Abstract
Abstract A system for maximizing ground speed utilizing jet stream air currents and/or providing guidance along the path of least resistance by processing of dynamic pressure information signals derived at spaced apart points of different altitude levels. Dynamic pressures are continuously compared and aircraft altitude control or altitude direction indicator means responsive to the compared pressures are utilized to cause changes in aircraft altitude or indicate the changes to be made to achieve maximum ground speed through a path of less resistance, or achieve increased comfort by avoiding paths adjacent large pressure differentials.
Inventors
- 👤 C Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:03
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/042; G05D1/046
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
97 words
The method of controlling the flight path of an aircraft comprising the steps of: measuring the air speed of the aircraft at a point adjacent the longitudinal axis of said aircraft; measuring the airspeed at a further point separated vertically on the aircraft with respect to the flight path of the aircraft and spaced a further predetermined distance from said point and on an axis parallel to said longitudinal axis; selecting the lesser of said air speeds measured; and maneuvering said aircraft along a flight path in the region of said lesser of said air speeds measured.
Claim 2
Independent Claim
97 words
The method of controlling the flight path of an aircraft comprising the steps of: measuring the air speed of the aircraft at a point adjacent the longitudinal axis of said aircraft; measuring the airspeed at a further point separated vertically on the aircraft with respect to the flight path of the aircraft and spaced a further predetermined distance from said point and on an axis parallel to said longitudinal axis; selecting the lesser of said air speeds measured; and maneuvering said aircraft along a flight path in the region of said lesser of said air speeds measured.
Claim 3
Independent Claim
97 words
The method of controlling the flight path of an aircraft comprising the steps of: measuring the air speed of the aircraft at a point adjacent the longitudinal axis of said aircraft; measuring the airspeed at a further point separated vertically on the aircraft with respect to the flight path of the aircraft and spaced a further predetermined distance from said point and on an axis parallel to said longitudinal axis; selecting the lesser of said air speeds measured; and maneuvering said aircraft along a flight path in the region of said lesser of said air speeds measured.
Claim 4
Independent Claim
97 words
The method of controlling the flight path of an aircraft comprising the steps of: measuring the air speed of the aircraft at a point adjacent the longitudinal axis of said aircraft; measuring the airspeed at a further point separated vertically on the aircraft with respect to the flight path of the aircraft and spaced a further predetermined distance from said point and on an axis parallel to said longitudinal axis; selecting the lesser of said air speeds measured; and maneuvering said aircraft along a flight path in the region of said lesser of said air speeds measured.
Claim 5
Dependent Claim
80 words
An aircraft indicator or control system comprising: first and second pressure sensing means positioned respectively above and below the wing of an aircraft structure for generating first and second signal voltages representative of the pressures above and below the wing respectively of said aircraft structure, means for comparing said first and second signals representative of said pressures above and below the wing respectively and providing control signals indicative of the pressures compared, and utilization means responsive to said control signals.
Claim 6
Dependent Claim
80 words
An aircraft indicator or control system comprising: first and second pressure sensing means positioned respectively above and below the wing of an aircraft structure for generating first and second signal voltages representative of the pressures above and below the wing respectively of said aircraft structure, means for comparing said first and second signals representative of said pressures above and below the wing respectively and providing control signals indicative of the pressures compared, and utilization means responsive to said control signals.
Claim 7
Dependent Claim
12 words
The system of claim 2, wherein said utilization means comprises autopilot means.
Claim 8
Dependent Claim
16 words
The system of claim 2, wherein said means for comparing pressures comprises pressure ratio circuit means.
Claim 9
Dependent Claim
16 words
The system of claim 2, wherein said means for comparing pressures comprises pressure difference circuit means.
Claim 10
Dependent Claim
97 words
Method of deriving guidance signal information for control of an aircraft during flight comprising the steps of: sensing dynamic pressures at a plurality of first points along a plane through a first axis passing through the longitudinal axis of the aircraft fuselage and at a plurality of second points along a plane through a second axis passing tHrough the longitudinal axis of the fuselage, said second axis being perpendicular to said first axis; processing signals representative of said sensed dynamic pressures at said first and second points to provide guidance signal information control signals for said aircraft.
Claim 11
Dependent Claim
97 words
Method of deriving guidance signal information for control of an aircraft during flight comprising the steps of: sensing dynamic pressures at a plurality of first points along a plane through a first axis passing through the longitudinal axis of the aircraft fuselage and at a plurality of second points along a plane through a second axis passing tHrough the longitudinal axis of the fuselage, said second axis being perpendicular to said first axis; processing signals representative of said sensed dynamic pressures at said first and second points to provide guidance signal information control signals for said aircraft.
Claim 12
Dependent Claim
272 words
In an aircraft having a fuselage and a tail section, a system for comparing pressures of at least first and second flight paths and comparing said pressures to furnish a control signal representative of the flight path of least resistance of said at least first and second flight paths for coupling to utilization means comprising: first pressure sensing means arranged in said first flight path and responsive to air speed of said first flight path to provide a first output signal voltage representative of said air speed of said first flight path; second pressure sensing means arranged in said second flight path and responsive to air speed of said second flight path to provide a second output signal voltage representative of said air speed of said second flight path; means responsive to said first and second output signal voltages for providing a first control signal voltage which is a function of said first and second output signal voltages; first utilization means responsive to said first control signal voltage; said first pressure sensing means arranged on the nose of the fuselage of said aircraft, said second pressure sensing means arranged at the top of said tail section of said aircraft and further comprising: third pressure sensing means arranged below the nose of the fuselage of said aircraft for providing a third output signal voltage representative of air speed below the nose of the fuselage; means responsive to said first and third output signal voltages for providing a second control signal voltage which is a function of said first and third output signal voltages; and second utilization means responsive to said control signal voltage.
Claim 13
Dependent Claim
272 words
In an aircraft having a fuselage and a tail section, a system for comparing pressures of at least first and second flight paths and comparing said pressures to furnish a control signal representative of the flight path of least resistance of said at least first and second flight paths for coupling to utilization means comprising: first pressure sensing means arranged in said first flight path and responsive to air speed of said first flight path to provide a first output signal voltage representative of said air speed of said first flight path; second pressure sensing means arranged in said second flight path and responsive to air speed of said second flight path to provide a second output signal voltage representative of said air speed of said second flight path; means responsive to said first and second output signal voltages for providing a first control signal voltage which is a function of said first and second output signal voltages; first utilization means responsive to said first control signal voltage; said first pressure sensing means arranged on the nose of the fuselage of said aircraft, said second pressure sensing means arranged at the top of said tail section of said aircraft and further comprising: third pressure sensing means arranged below the nose of the fuselage of said aircraft for providing a third output signal voltage representative of air speed below the nose of the fuselage; means responsive to said first and third output signal voltages for providing a second control signal voltage which is a function of said first and third output signal voltages; and second utilization means responsive to said control signal voltage.
Claim 14
Dependent Claim
18 words
The combination of claim 7 wherein said first and second utilization means comprise first and second voltmeters respectively.
Claim 15
Dependent Claim
149 words
The combination of claim 7 further comprising: fourth pressure sensing means arranged on the left wing tip of said aircraft for providing a fourth output signal voltage representative of air pressure on the left wing tip of said aircraft; means responsive to said first and fourth output signal voltages for providing a third control signal voltage which is a function of said first and fourth output signal voltages; third utilization means responsive to said third control voltage; fifth pressure sensing means arranged on the right wing tip of said aircraft for providing a fifth output signal voltage representative of air pressure on the right wing tip of said aircraft; means responsive to said first and fifth output signal voltages for providing a fourth control signal voltage which is a function of said first and fifth output signal voltages; and fourth utilization means responsive to said fourth control signal voltage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |