US3241245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sensing angles of inclination
Assignee: Applied Devices Corp
•
Filing: 1962-05-04
•
Granted: 1966-03-22
•
Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A DEVICE FOR SENSING ANGLES OF INCLINATION, SAID DEVICE COMPRISING A FRAME ADAPTED TO BE SUPPORTED ON AN OBJECT, A PENDULUM, MEANS MOUNTING SAID PENDULUM ON SAID FRAME FOR ROTATION ABOUT A HORIZONTAL AXIS, A CAGE, REVERSIBLE MOTOR MEANS TO TURN SAID CAGE ABOUT AN AXIS COINCIDENT WITH THE AXIS OF ROTATION OF THE PENDULUM, SAID CAGE INCLUDING STOPS LIMITING MOTION OF THE PENDULUM WITH RESPECT THERETO IN OPPOSITE DIRECTIONS TO AN ANGLE OF MOVEMENT WHICH IS SMALL IN RELATION TO 360*, AND A SERVO SYSTEM ACTUATED BY MOVEMENT OF THE PENDULUM RELATIVE TO THE CAGE TO ENERGIZE THE MOTOR IN A DIRECTION SUCH AS TO DRIVE THE CAGE IN THE SAME DIRECTION AS THE PENDULUM, UNTIL THE PENDULUM IS SUBSTANTIALLY VERTICAL, THE FREQUENCY RESPONSE OF THE SERVO SYSTEM BEING NOT IN EXCESS OF ONE-HALF THE ACTUAL OSCILLATORY FREQUENCY OF THE PENDULUM.
Claim 2
Independent Claim
142 words
A DEVICE FOR SENSING ANGLES OF INCLINATION, SAID DEVICE COMPRISING A FRAME ADAPTED TO BE SUPPORTED ON AN OBJECT, A PENDULUM, MEANS MOUNTING SAID PENDULUM ON SAID FRAME FOR ROTATION ABOUT A HORIZONTAL AXIS, A CAGE, REVERSIBLE MOTOR MEANS TO TURN SAID CAGE ABOUT AN AXIS COINCIDENT WITH THE AXIS OF ROTATION OF THE PENDULUM, SAID CAGE INCLUDING STOPS LIMITING MOTION OF THE PENDULUM WITH RESPECT THERETO IN OPPOSITE DIRECTIONS TO AN ANGLE OF MOVEMENT WHICH IS SMALL IN RELATION TO 360*, AND A SERVO SYSTEM ACTUATED BY MOVEMENT OF THE PENDULUM RELATIVE TO THE CAGE TO ENERGIZE THE MOTOR IN A DIRECTION SUCH AS TO DRIVE THE CAGE IN THE SAME DIRECTION AS THE PENDULUM, UNTIL THE PENDULUM IS SUBSTANTIALLY VERTICAL, THE FREQUENCY RESPONSE OF THE SERVO SYSTEM BEING NOT IN EXCESS OF ONE-HALF THE ACTUAL OSCILLATORY FREQUENCY OF THE PENDULUM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |