US3628256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft navigation teaching device
Assignee: Individual
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Filing: 1970-03-25
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Granted: 1971-12-21
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Expires: 1990-03-25
Abstract
Abstract A device for demonstrating and teaching the principles of aircraft radio navigation with reference to an omnirange station in which movement of a model aircraft on a surface representing the geographical area around an omnirange station is followed by a position sensing system. The position sensing system incorporates a course selector dial and indicators similar to those generally provided in an aircraft omnirange navigation system. Manipulation of the model aircraft and the course selector dial results in indicator displays which are consistent in nature and sense with those which would be observed in actual aircraft radio navigation.
Inventors
- 👤 Roger W Story
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:31
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A device to demonstrate and teach aircraft navigation with respect to an omnirange station comprising: means for representing a vehicle; nonmagnetic means for supporting said representing means; means for shifting the phase of cyclic reference signal by an amount proportional to the angular position of a shaft; means for controlling said angular position, said control means being physically separated from said representing means by said support means but being magnetically connected to the representing means, said shifted signal being connected to a means for indicating the angular position of said representing means with respect to a simulated omnirange station.
Claim 2
Independent Claim
99 words
A device to demonstrate and teach aircraft navigation with respect to an omnirange station comprising: means for representing a vehicle; nonmagnetic means for supporting said representing means; means for shifting the phase of cyclic reference signal by an amount proportional to the angular position of a shaft; means for controlling said angular position, said control means being physically separated from said representing means by said support means but being magnetically connected to the representing means, said shifted signal being connected to a means for indicating the angular position of said representing means with respect to a simulated omnirange station.
Claim 3
Dependent Claim
27 words
A device as set forth in claim 1 wherein the means for controlling the angular position of a shaft is a radial arm attached to said shaft.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |