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US3232120A
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Convergent field supported inertial reference
Assignee: Harvest Queen Mill and Elevator Co
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Filing: 1963-07-29
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Granted: 1966-02-01
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Ensley Donald Luther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN INERTIAL REFERENCE SYSTEM WHICH COMPRISES: (A) A PIEZOELECTRIC BODY HAVING A HOLLOW CAVITY THEREIN, (B) A SPHERICAL REFERENCE ELEMENT IN SAID CAVITY, (C) A TRANSMISSION FLUID FILLING THE SPACE IN SAID CAVITY OUTSIDE SAID ELEMENT HAVING SPECIFIC GRAVITY SUBSTANTIALLY CORRESPONDING WITH THE SPECIFIC GRAVITY OF SAID ELEMENT, (D) MEANS FOR APPLYING ALTERNATING VOLTAGE TO SAID BODY FOR GENERATION OF ULTRASONIC WAVES IN SAID CAVITY WHICH ARE CONVERGENT TOWARD THE CENTER OF SAID CAVITY TO POSITION SAID ELEMENT, (E) MEANS FOR SENSING ROTATION OF SAID BODY RELATIVE TO SAID ELEMENT ABOUT SELECTED AXES, (F) GIMBAL MEANS SUPPORTED SAID BODY FOR INDEPENDENT ROTATION ABOUT SAID AXES, AND (G) MEANS FOR SLAVING SAID BODY TO SAID ELEMENT WITH REFERENCE TO ROTATION ABOUT SAID AXES.
Claim 2
Dependent Claim
122 words
AN INERTIAL REFERENCE SYSTEM WHICH COMPRISES: (A) A PIEZOELECTRIC BODY HAVING A HOLLOW CAVITY THEREIN, (B) A SPHERICAL REFERENCE ELEMENT IN SAID CAVITY, (C) A TRANSMISSION FLUID FILLING THE SPACE IN SAID CAVITY OUTSIDE SAID ELEMENT HAVING SPECIFIC GRAVITY SUBSTANTIALLY CORRESPONDING WITH THE SPECIFIC GRAVITY OF SAID ELEMENT, (D) MEANS FOR APPLYING ALTERNATING VOLTAGE TO SAID BODY FOR GENERATION OF ULTRASONIC WAVES IN SAID CAVITY WHICH ARE CONVERGENT TOWARD THE CENTER OF SAID CAVITY TO POSITION SAID ELEMENT, (E) MEANS FOR SENSING ROTATION OF SAID BODY RELATIVE TO SAID ELEMENT ABOUT SELECTED AXES, (F) GIMBAL MEANS SUPPORTED SAID BODY FOR INDEPENDENT ROTATION ABOUT SAID AXES, AND (G) MEANS FOR SLAVING SAID BODY TO SAID ELEMENT WITH REFERENCE TO ROTATION ABOUT SAID AXES.
References Cited (Backward Citations)
US3003356A
Cited
US3056303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |