US3096513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-automatic ground controlled appoach system
Assignee: Gilfillan Bros Inc
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Filing: 1957-10-14
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Granted: 1963-07-02
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Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Cutler Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:38
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/91; G01S13/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
243 words
IN A GROUND CONTROLLED APPROACH SYSTEM INCLUDING A GROUND BASED RADAR SYSTEM FOR PRODUCING OUTPUT SIGNALS BY WHICH A PILOTED AIRCRAFT MAY BE GUIDED FOR LANDING, AN ARRANGEMENT FOR AUTOMATICALLY TRANSMITTING AUDIO MESSAGES TO AN AIRCRAFT TO GUIDE IT, SAID ARRANGEMENT COMPRISING: RECORD MEANS CONTAINING RECORDINGS OF A PLURALITY OF AUDIO MESSAGES; MEANS FOR REPRODUCING SAID AUDIO MESSAGES; A SET OF RANGE AUDIO GATES FOR REPRODUCONLY RANGE AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF HEADING AUDIO GATES FOR PASSING ONLY HEADING AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF ELEVATION AUDIO GATES FOR PASSING ONLY ELEVATION AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF COURSE AUDIO GATES FOR PASSING ONLY COURSE AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; RANGE, HEADING, ELEVATION, AND COURSE CONVERTERS FOR PRODUCING SWITCHING SIGNALS CORRESPONDING TO THE ACTUAL RANGE, IDEAL HEADING, ELEVATION ERROR, AND COURSE ERROR OF AN AIRCRAFT TO BE GUIDED; SAID SET OF RANGE AUDIO GATES BEING RESPONSIVE TO RANGE SWITCHING SIGNALS TO PASS ONLY ONE RANGE AUDIO MESSAGE; SAID SET OF HEADING AUDIO GATES BEING ADAPTED TO PASS ONLY ONE HEADING AUDIO MESSAGE; SAID SET OF ELEVATION AUDIO GATES BEING ADAPTED TO PASS ONLY ONE ELEVATION AUDIO MESSAGE; SAID SET OF COURSE AUDIO GATES BEING ADAPTED TO PASS ONLY ONE COURSE AUDIO MESSAGE; AND MEANS TO GATE OUT ONLY ONE OF SAID ONE RANGE, SAID ONE HEADING, SAID ONE ELEVATION, AND SAID ONE COURSE AUDIO MESSAGES AT A TIME.
Claim 2
Dependent Claim
243 words
IN A GROUND CONTROLLED APPROACH SYSTEM INCLUDING A GROUND BASED RADAR SYSTEM FOR PRODUCING OUTPUT SIGNALS BY WHICH A PILOTED AIRCRAFT MAY BE GUIDED FOR LANDING, AN ARRANGEMENT FOR AUTOMATICALLY TRANSMITTING AUDIO MESSAGES TO AN AIRCRAFT TO GUIDE IT, SAID ARRANGEMENT COMPRISING: RECORD MEANS CONTAINING RECORDINGS OF A PLURALITY OF AUDIO MESSAGES; MEANS FOR REPRODUCING SAID AUDIO MESSAGES; A SET OF RANGE AUDIO GATES FOR REPRODUCONLY RANGE AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF HEADING AUDIO GATES FOR PASSING ONLY HEADING AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF ELEVATION AUDIO GATES FOR PASSING ONLY ELEVATION AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; A SET OF COURSE AUDIO GATES FOR PASSING ONLY COURSE AUDIO MESSAGES DEVELOPED BY SAID REPRODUCING MEANS; RANGE, HEADING, ELEVATION, AND COURSE CONVERTERS FOR PRODUCING SWITCHING SIGNALS CORRESPONDING TO THE ACTUAL RANGE, IDEAL HEADING, ELEVATION ERROR, AND COURSE ERROR OF AN AIRCRAFT TO BE GUIDED; SAID SET OF RANGE AUDIO GATES BEING RESPONSIVE TO RANGE SWITCHING SIGNALS TO PASS ONLY ONE RANGE AUDIO MESSAGE; SAID SET OF HEADING AUDIO GATES BEING ADAPTED TO PASS ONLY ONE HEADING AUDIO MESSAGE; SAID SET OF ELEVATION AUDIO GATES BEING ADAPTED TO PASS ONLY ONE ELEVATION AUDIO MESSAGE; SAID SET OF COURSE AUDIO GATES BEING ADAPTED TO PASS ONLY ONE COURSE AUDIO MESSAGE; AND MEANS TO GATE OUT ONLY ONE OF SAID ONE RANGE, SAID ONE HEADING, SAID ONE ELEVATION, AND SAID ONE COURSE AUDIO MESSAGES AT A TIME.
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |