Patent US3274546A successfully refreshed from Google Patents.
US3274546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft guidance, approach, and landing system with yaw detection and metering
Assignee: Individual
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Filing: 1963-10-30
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Granted: 1966-09-20
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Gunn Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A GUIDANCE SYSTEM FOR VEHICLES INCLUDING, IN COMBINATION, MEANS FOR GENERATING A PATTERN OF ALTERNATING MAGNETIC FLUX AT LEAST WITHIN THE AUDIO RANGE, INDUCTION MEANS ON A VEHICLE FOR SENSING SAID FLUX AS AN A.C. VOLTAGE, MEANS ON THE VEHICLE TO RECTIFY SAID VOLTAGE, MEANS TO INDICATE THE PHASE DIRECTION OF THE FLUX FROM SAID RECTIFIED VOLTAGE, A CONDUCTOR POSITIONED ABOVE GROUND AND WITHIN THE INFLUENCE OF SAID PATTERN OF A.C. MAGNETIC FLUX, MEANS ENERGIZING SAID CONDUCTOR WITH A HIGH A.C. VOLTAGE OF THE SAME FREQUENCY AS SAID PATTERN, AND MEANS ON THE VEHICLE TO DETECT THE ELECTROSTATIC FLUX FROM SAID CONDUCTOR, SAID MEANS TO RECTIFY SAID VOLTAGE SENSED FROM THE PATTERN FLUX BEING SYNCHRONIZED BY THE DETECTED ELECTROSTATIC FLUX TO INSURE CORRECT INDICATION OF PHASE.
Claim 2
Dependent Claim
126 words
A GUIDANCE SYSTEM FOR VEHICLES INCLUDING, IN COMBINATION, MEANS FOR GENERATING A PATTERN OF ALTERNATING MAGNETIC FLUX AT LEAST WITHIN THE AUDIO RANGE, INDUCTION MEANS ON A VEHICLE FOR SENSING SAID FLUX AS AN A.C. VOLTAGE, MEANS ON THE VEHICLE TO RECTIFY SAID VOLTAGE, MEANS TO INDICATE THE PHASE DIRECTION OF THE FLUX FROM SAID RECTIFIED VOLTAGE, A CONDUCTOR POSITIONED ABOVE GROUND AND WITHIN THE INFLUENCE OF SAID PATTERN OF A.C. MAGNETIC FLUX, MEANS ENERGIZING SAID CONDUCTOR WITH A HIGH A.C. VOLTAGE OF THE SAME FREQUENCY AS SAID PATTERN, AND MEANS ON THE VEHICLE TO DETECT THE ELECTROSTATIC FLUX FROM SAID CONDUCTOR, SAID MEANS TO RECTIFY SAID VOLTAGE SENSED FROM THE PATTERN FLUX BEING SYNCHRONIZED BY THE DETECTED ELECTROSTATIC FLUX TO INSURE CORRECT INDICATION OF PHASE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |