US3283589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force restrained accelerometer
Assignee: Harvest Queen Mill and Elevator Co
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Filing: 1963-07-29
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Granted: 1966-11-08
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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
2026-11-06 04:29
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/125; G01P15/13; G01P15/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN ACCELEROMETER WHICH COMPRISES: (A) AN INERTIAL REFERENCE ELEMENT OF CYLINDRICAL FORM HAVING CONCAVE ENDS, (B) A FLOTATION CHAMBER UNIT FOR ENCASING SAID ELEMENT AND FILLED WITH A FLOTATION LIQUID HAVING A SPECIFIC GRAVITY CONTRASTING WITH THE SPECIFIC GRAVITY OF SAID ELEMENT, (C) A PAIR OF ACOUSTIC TRANSDUCERS EXTENDING FROM OPPOSITE ENDS OF SAID CHAMBER UNIT INTO JUXTAPOSITION WITH THE CONCAVE ENDS OF SAID ELEMENT FOR GENERATION, UPON EXCITATION THEREOF, OF OPPOSED RADIALLY DIVERGENT ULTRASONIC FIELDS RESILIENTLY TO RESTRAIN SAID ELEMENT AT A REFERENCE POSITION IN SAID CHAMBER UNIT IN RESPONSE TO SECOND ORDER PRESSURE FIELDS PRODUCED BY REACTION OF THE FIELDS WITH SAID CONCAVE ENDS, AND (D) CAPACITANCE MEANS AT THE ENDS OF SAID ELEMENT AND SAID UNIT FOR SENSING VARIATIONS IN THE POSITION OF SAID UNIT WITH REFERENCE TO SAID ELEMENT ALONG AN AXIS TO WHICH SAID CONCAVE ENDS ARE SYMMETRICAL.
Claim 2
Dependent Claim
143 words
AN ACCELEROMETER WHICH COMPRISES: (A) AN INERTIAL REFERENCE ELEMENT OF CYLINDRICAL FORM HAVING CONCAVE ENDS, (B) A FLOTATION CHAMBER UNIT FOR ENCASING SAID ELEMENT AND FILLED WITH A FLOTATION LIQUID HAVING A SPECIFIC GRAVITY CONTRASTING WITH THE SPECIFIC GRAVITY OF SAID ELEMENT, (C) A PAIR OF ACOUSTIC TRANSDUCERS EXTENDING FROM OPPOSITE ENDS OF SAID CHAMBER UNIT INTO JUXTAPOSITION WITH THE CONCAVE ENDS OF SAID ELEMENT FOR GENERATION, UPON EXCITATION THEREOF, OF OPPOSED RADIALLY DIVERGENT ULTRASONIC FIELDS RESILIENTLY TO RESTRAIN SAID ELEMENT AT A REFERENCE POSITION IN SAID CHAMBER UNIT IN RESPONSE TO SECOND ORDER PRESSURE FIELDS PRODUCED BY REACTION OF THE FIELDS WITH SAID CONCAVE ENDS, AND (D) CAPACITANCE MEANS AT THE ENDS OF SAID ELEMENT AND SAID UNIT FOR SENSING VARIATIONS IN THE POSITION OF SAID UNIT WITH REFERENCE TO SAID ELEMENT ALONG AN AXIS TO WHICH SAID CONCAVE ENDS ARE SYMMETRICAL.
References Cited (Backward Citations)
US3124962A
Cited
US3003356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |