Patent US3816716A successfully refreshed from Google Patents.
US3816716A
Expired / Lapsed
US
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Navigational computer
Assignee: GARMO R DE
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Filing: 1973-01-04
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Granted: 1974-06-11
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Expires: 1993-01-04
Abstract
Abstract A navigational computer that employs displays and registers to place in and retain the estimated ground speed, the time of day, and the distance of the leg of the flight. An arithmetic unit accepts such information and calculates the estimated time of arrival, the actual ground speed, and the distance remaining in the present leg of the flight. Three readout displays provide such data to the pilot.
Inventors
- 👤 Garmo R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:47
CPC Classifications
G; G01; G01C; G01C23/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A navigational computer in an airplane for aiding the pilot in flight comprising: a plurality of indicators for displaying first indicia; a respective plurality of controls for inserting said first indicia in said respective plurality of indicators for receiving and retaining said first indicia; a respective plurality of registers; calculating means coupled to said respective plurality of registers and one of said plurality of indicators for receiving and utilizing said first indicia to provide second indicia; a second plurality of registers coupled to said calculating means for receiving, retaining and transferring said second indicia; and a plurality of displays coupled to said second plurality of registers for receiving and displaying said second indicia.
Claim 2
Dependent Claim
113 words
A navigational computer in an airplane for aiding the pilot in flight comprising: a plurality of indicators for displaying first indicia; a respective plurality of controls for inserting said first indicia in said respective plurality of indicators for receiving and retaining said first indicia; a respective plurality of registers; calculating means coupled to said respective plurality of registers and one of said plurality of indicators for receiving and utilizing said first indicia to provide second indicia; a second plurality of registers coupled to said calculating means for receiving, retaining and transferring said second indicia; and a plurality of displays coupled to said second plurality of registers for receiving and displaying said second indicia.
Claim 3
Dependent Claim
63 words
A navigational computer as recited in claim 1 wherein: said first indicia includes the time of day, the starting time of the leg of the flight, the estimated ground speed, and the distance of a leg of the flight; and said second indicia includes the estimated time of arrival, the actual ground speed, and the distance remaining in said leg of the flight.
Claim 4
Dependent Claim
66 words
A navigational computer as recited in claim 1 wherein: said plurality of indicators comprises respective indicators for respectively displaying the time of day, the estimated ground speed, and the distance of a leg of the flight; and said plurality of displays comprises respective displays for respectively displaying the estimated time of arrival, the actual ground speed, and the distance remaining in said leg of the flight.
Claim 5
Dependent Claim
75 words
A navigational computer as recited in claim 3 wherein said calculating means; receives the starting time of the leg of the flight, the estimated ground speed and the distance of a leg of the flight from said first plurality of registers; receives the time of day from said time of day indicator; and receives the estimated time of arrival and the remaining distance in said leg of the flight from said second plurality of registers.
Claim 6
Dependent Claim
66 words
A navigational computer as recited in claim 2 which further comprises: a comparator and logic network means for comprising the time of day with the estimated time of arrival; and alarm means coupled to said comparator and logic network means for receiving a signal when the time of day equals the estimated time of arrival, said signal activating said alarm means to provide an audio output.
Claim 7
Dependent Claim
52 words
A navigational computer as recited in claim 5 which further includes control means for dialing the estimated time of arrival into an estimated time of arrival display during holding patterns in order to receive an audio output from said alarm means at the time when the airplane should be over the runway.
Claim 8
Dependent Claim
28 words
A navigational computer as recited in claim 3 which further includes means for recieving, calculating and displaying additional first and second indicia upon successive legs of said flight.
References Cited (Backward Citations)
US3443073A
Cited
US3649818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |