Patent US3142991A successfully refreshed from Google Patents.
US3142991A
Expired / Lapsed
US
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Fluid rotor sensor
Assignee: Lear Siegler Inc
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Filing: 1960-08-08
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Granted: 1964-08-04
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Pittman Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:04
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/09; G01P15/0922; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/06; G01C19/14; G01C19/28; G01P3/00; G01P3/26; G01P3/30; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1271
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
184 words
IN COMBINATION: MEANS FORMING A CLOSED SPHERICAL, ROTATABLE CHAMBER HAVING A SPIN AXIS ORIENTED IN A PREDETERMINED DIRECTION; DRIVING MEANS TO SPIN SAID CHAMBER ABOUT SAID SPIN AXIS; A RIGID AXIAL SUPPORT MEMBER COAXIAL WITH SAID SPIN AXIS AND PASSING THROUGH SAID CHAMBER; AN ANNULAR MOTION-DETECTING DISC MEANS, SYMMERTICALLY POSITIONED AROUND SAID AXIAL SUPPORT MEMBER; FIRST FLEXIBLE FLUID-TIGHT MEMBRANCE MEANS POSITIONED BETWEEN THE INNER EDGE OF SAID ANNULAR DISC AND SAID RIGID AXIAL MEMBER; SECOND FLEXIBLE FLUID-TIGHT MEMBRANE MEANS CONNECTED BETWEEN THE OUTER EDGE OF SAID ANNULAR DISC AND THE INNER WALL OF SAID ROTATABLE CHAMBER; TWO DIFFERENT LIQUIDS POSITIONED ON OPPOSITE FACES OF SAID DISC AND SAID MEMBRANE MEMBERS AND FILLING SAID CHAMBER, ONE SAID LIQUID BEING HEAVIER THAN THE OTHER SAID LIQUID; MOTIONSENSING MEANS EXTENDING RADIALLY FROM SAID AXIAL MEMBER AND COMMUNICATING WITH SAID DISC MEANS WHEREUPON APPLICATION OF ACCELERATION IN A PLANE NORMAL TO THE SAID SPIN AXIS, AFTER THE SAID CHAMBER IS IN ROTATION, ESTABLISHES AN OSCILLATION ON THE MOTION DETECTING DISC MEANS RELATIVE TO SAID AXIAL MEMBER TO GENERATE AN ELECTRICAL SIGNAL WHICH IS A MEASURE OF SAID ACCELERATION.
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |