US3092356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
•
Filing: 1959-12-04
•
Granted: 1963-06-04
•
Expires: 1979-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert F Helfinstine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:42
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN FLIGHT ALTITUDE MAINTAINING APPARATUS FOR AN AIRCRAFT HAVING MOVABLE CONTROL ELEMENTS TO CHANGE ALTITUDE THEREOF AND A SERVOMOTOR MEANS OPERATING SAID CONTROL ELEMENTS, IN COMBINATION: A RADAR ALTIMETER RESPONSIVE FIRST SIGNAL GENERATOR, THUS RESPONSIVE TO ONE CHARACTERISTIC OF ALTITUDE, GENERATING A SIGNAL WHEN THE CRAFT DEPARTS A PREDETERMINED EXTENT FROM A DESIRED ALTITUDE AND CONNECTED TO SAID SERVOMOTOR MEANS FOR OPERATION THEREOF; A BAROMETRIC ALTIMETER RESPONSIVE SECOND SIGNAL GENERATOR, THUS RESPONSIVE TO ANOTHER CHARACTERISTIC OF ALTITUDE, ADAPTED FOR OPERATING SAID SERVOMOTOR MEANS IN-
Claim 2
Dependent Claim
84 words
IN FLIGHT ALTITUDE MAINTAINING APPARATUS FOR AN AIRCRAFT HAVING MOVABLE CONTROL ELEMENTS TO CHANGE ALTITUDE THEREOF AND A SERVOMOTOR MEANS OPERATING SAID CONTROL ELEMENTS, IN COMBINATION: A RADAR ALTIMETER RESPONSIVE FIRST SIGNAL GENERATOR, THUS RESPONSIVE TO ONE CHARACTERISTIC OF ALTITUDE, GENERATING A SIGNAL WHEN THE CRAFT DEPARTS A PREDETERMINED EXTENT FROM A DESIRED ALTITUDE AND CONNECTED TO SAID SERVOMOTOR MEANS FOR OPERATION THEREOF; A BAROMETRIC ALTIMETER RESPONSIVE SECOND SIGNAL GENERATOR, THUS RESPONSIVE TO ANOTHER CHARACTERISTIC OF ALTITUDE, ADAPTED FOR OPERATING SAID SERVOMOTOR MEANS IN-
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |