US3073165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravimeter
Assignee: North American Aviation Corp
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Filing: 1958-08-12
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Granted: 1963-01-15
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Expires: 1978-08-12
Abstract
No abstract record available.
Inventors
- 👤 John M Slater
- 👤 Doyle E Wilcox
- 👤 Walter L Pondrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
G; G01; G01V; G01V7/00; G01V7/16; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
150 words
IN AN INTEGRATING GRAVIMETER OF THE GYRO-PENDULUM TYPE; A PENDULOUS ELEMENT COMPRISING A MASS M OF RADIUS R SUBJECT TO A COMPONENT OF GRAVITY G SO AS TO PRODUCE A PENDULOUS MOMENT L=MGR; SUPPORT MEANS FOR SUPPORTING SAID PENDULOUS ELEMENT, SAID SUPPORT MEANS BEING ROTATABLE ABOUT A VERTICAL AXIS; SAID PENDULOUS ELEMENT FURTHER COMPRISING A GYROSCOPIC ELEMENT HAVING AN ANGULAR MOMENT H; SERVO ROTATIONAL MEANS FOR ROTATING SAID SUPPORT MEANS AND PENDULOUS ELEMENT ABOUT SAID VERTICAL AXIS AT AN ANGULAR VELOCITY W FOR GENERATING A GYROSCOPIC MOMENT L=WH; PICKOFF MEANS FOR DETECTING DEFLECTION OF THE PENDULOUS ELEMENT FROM A NULL POSITION; SAID SERVO MEANS BEING RESPONSIVE TO SAID PICKOFF MEANS FOR CONTROLLING SAID GYROSCOPIC MOMENT FOR MAINTAINING SAID PENDULOUS ELEMENT AT A NULL POSITION, AND MEANS RESPONSIVE TO SAID SERVO MEANS FOR INTEGRATING WITH RESPECT TO TIME ROTATIONS OF SAID SUPPORTING MEANS AS AN INDICATION OF ACCELERATION DUE TO GRAVITY.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |