US3123324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:20
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A FOLLOW-UP TYPE OF MOTOR CONTROL SYSTEM, IN COMBINATION: AUTOMATIC MEANS SUPPLYING A FIRST COMMAND SIGNAL; A SERVOMOTOR, MEANS PROVIDING A SIGNAL PROPORTIONAL TO SERVO DISPLACEMENT AND DRIVEN BY SAID SERVOMOTOR; A LAG DEVICE RESPONSIVE TO SAID SERVOMOTOR SIGNAL HAVING AN OUTPUT SIGNAL OF OPPOSITE PHASE; AND MEANS CONTROLLING SAID SERVOMOTOR FROM SAID COMMAND SIGNAL, SAID SERVOMOTOR SIGNAL, AND THE SIGNAL FROM THE LAG DEVICE TO PROVIDE TIME INTEGRAL CONTROL OF THE MOTOR CONTROL SYSTEM FROM THE FIRST COMMAND SIGNAL; AND MANUAL MEANS SUPPLYING A SECOND COMMAND SIGNAL TO THE MOTOR CONTROL SYSTEM TO OBTAIN A DISPLACEMENT THEREOF PROPORTIONAL TO THE MAGNITUDE OF THE MANUAL COMMAND SIGNAL.
Claim 2
Dependent Claim
17 words
IN CONTROL APPARATUS FOR AN AIRCRAFT HAVING TWO ATTITUDE CHANGING MEANS OPERABLE TO ALTER ATTITUDE OF THE
References Cited (Backward Citations)
US2683003A
Cited
US2981500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |