US3071975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerometer
Assignee: Individual
•
Filing: 1961-02-27
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Granted: 1963-01-08
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Percy F Hurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:21
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN ACCELEROMETER COMPRISING A MOTOR HAVING AN EXTERNALLY EXTENDING OUTPUT SHAFT AT A GIVEN CONSTANT RATE; A DYNAMICALLY BALANCED DISC, HAVING A HOLLOW PORTION THEREIN, SECURED TO SAID SHAFT FOR ROTATION THEREWITH; A FORCE SENSITIVE DEVICE MOUNTED IN SAID HOLLOW PORTION AND DISPOSED FOR ROTATION WITH SAID DISC TO GENERATE A REFERENCE VOLTAGE CONTAINING THE EARTH''S GRAVITATIONAL FORCE VECTOR AS A REFERENCE, SAID DEVICE DISPOSED TO GENERATE A SECOND VOLTAGE RESPONSIVE TO ACCELERATIONS; MEANS FOR VARYING THE POSITION OF SAID FORCE SENSITIVE DEVICE RELATIVE TO ITS AXIS OF ROTATION FOR GENERATION OF SAID REFERENCE VOLTAGE; A SIGNAL ANALYZER ELECTRICALLY CONNECTED TO SAID DEVICE FOR COMPARING SAID SECOND VOLTAGE WITH SAID REFERENCE VOLTAGE, THEREBY DERIVING A VOLTAGE PROPORTIONATE TO THE AMOUNT AND DIRECTION OF SAID ACCELERATIONS.
Claim 2
Dependent Claim
125 words
AN ACCELEROMETER COMPRISING A MOTOR HAVING AN EXTERNALLY EXTENDING OUTPUT SHAFT AT A GIVEN CONSTANT RATE; A DYNAMICALLY BALANCED DISC, HAVING A HOLLOW PORTION THEREIN, SECURED TO SAID SHAFT FOR ROTATION THEREWITH; A FORCE SENSITIVE DEVICE MOUNTED IN SAID HOLLOW PORTION AND DISPOSED FOR ROTATION WITH SAID DISC TO GENERATE A REFERENCE VOLTAGE CONTAINING THE EARTH''S GRAVITATIONAL FORCE VECTOR AS A REFERENCE, SAID DEVICE DISPOSED TO GENERATE A SECOND VOLTAGE RESPONSIVE TO ACCELERATIONS; MEANS FOR VARYING THE POSITION OF SAID FORCE SENSITIVE DEVICE RELATIVE TO ITS AXIS OF ROTATION FOR GENERATION OF SAID REFERENCE VOLTAGE; A SIGNAL ANALYZER ELECTRICALLY CONNECTED TO SAID DEVICE FOR COMPARING SAID SECOND VOLTAGE WITH SAID REFERENCE VOLTAGE, THEREBY DERIVING A VOLTAGE PROPORTIONATE TO THE AMOUNT AND DIRECTION OF SAID ACCELERATIONS.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |