Patent US3141638A successfully refreshed from Google Patents.
US3141638A
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Analog division control system
Assignee: Douglas Aircraft Co Inc
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Filing: 1962-07-17
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Granted: 1964-07-21
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Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 William F Fuhrmeister
- 👤 Roger P Gentile
- 👤 Gordon W Riedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:50
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/161; F; F41; F41G; F41G7/00; F41G7/34; F41G7/36; G06G7/48; G06G7/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A CONTROL SYSTEM, COMPRISING: A FIRST ACCELEROMETER MOUNTED TO A VEHICLE FOR SENSING ACCELERATION OF SAID VEHICLE IN A FIRST DIRECTION AND GENERATING A FIRST ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO SAID SENSED ACCELERATION OF SAID VEHICLE IN SAID FIRST DIRECTION; A SECOND ACCELEROMETER MOUNTED TO SAID VEHICLE FOR SENSING ACCELERATION OF SAID VEHICLE IN A SECOND DIRECTION AND GENERATING A SECOND ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO SAID SENSED ACCELERATION OF SAID VEHICLE IN SAID SECOND DIRECTION; AN ANALOG DIVISION CIRCUIT FOR DIVIDING SAID FIRST ANALOG SIGNAL BY SAID SECOND ANALOG SIGNAL TO PRODUCE AN OUTPUT ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO A RATIO OF SAID FIRST ANALOG SIGNAL TO SAID SECOND ANALOG SIGNAL; AND CONTROL MEANS RESPONSIVE TO SAID OUTPUT ANALOG SIGNAL FOR CONTROLLING SAID VEHICLE WHEREBY SAID VEHICLE IS ORIENTED TO REDUCE SAID FIRST ANALOG SIGNAL TO ZERO.
Claim 2
Dependent Claim
147 words
A CONTROL SYSTEM, COMPRISING: A FIRST ACCELEROMETER MOUNTED TO A VEHICLE FOR SENSING ACCELERATION OF SAID VEHICLE IN A FIRST DIRECTION AND GENERATING A FIRST ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO SAID SENSED ACCELERATION OF SAID VEHICLE IN SAID FIRST DIRECTION; A SECOND ACCELEROMETER MOUNTED TO SAID VEHICLE FOR SENSING ACCELERATION OF SAID VEHICLE IN A SECOND DIRECTION AND GENERATING A SECOND ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO SAID SENSED ACCELERATION OF SAID VEHICLE IN SAID SECOND DIRECTION; AN ANALOG DIVISION CIRCUIT FOR DIVIDING SAID FIRST ANALOG SIGNAL BY SAID SECOND ANALOG SIGNAL TO PRODUCE AN OUTPUT ANALOG SIGNAL WHICH IS CHARACTERISTICALLY VARIABLE ACCORDING TO A RATIO OF SAID FIRST ANALOG SIGNAL TO SAID SECOND ANALOG SIGNAL; AND CONTROL MEANS RESPONSIVE TO SAID OUTPUT ANALOG SIGNAL FOR CONTROLLING SAID VEHICLE WHEREBY SAID VEHICLE IS ORIENTED TO REDUCE SAID FIRST ANALOG SIGNAL TO ZERO.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |