Patent US3302191A successfully refreshed from Google Patents.
US3302191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauge circuit
Assignee: Motors Liquidation Co
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Filing: 1964-05-04
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Granted: 1967-01-31
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 John R Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:48
CPC Classifications
G; G01; G01K; G01K5/00; G01F; G01F23/00; G01F23/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
IN AN INDICATOR GAUGE, APPARATUS FOR PRODUCING AN ANGULARLY DISPLACEABLE MAGNETIC FIELD COMPRISING A SOURCE OF ELECTRICAL ENERGY, A FIRST WINDING DIRECTLY CONNECTED ACROSS THE SOURCE FOR PRODUCING A FIRST MAGNETIC FIELD OF SUBSTANTIALLY CONSTANT MAGNITUDE ALONG THE AXIS OF THE FIRST WINDING, SECOND, THIRD AND FOURTH WINDINGS FOR PRODUCING SECOND, THIRD AND FOURTH MAGNETIC FIELDS, RESPECTIVELY, ALONG THE WINDING AXES, ONE END OF THE SECOND WINDING BEING CONNECTED TO THE SOURCE AND THE OTHER END BEING CONNECTED TO ONE END OF EACH OF THE THIRD AND FOURTH WINDINGS, THE FIRST AND SECOND WINDINGS BEING COAXIAL SUCH THAT THE FIRST AND SECOND MAGNETIC FIELDS ARE IN SUBSTANTIALLY DIRECT OPPOSITION ALONG A FIRST COMMON AXIS, AND THE THIRD AND FOURTH WINDINGS BEING COAXIAL SUCH THAT THE THIRD AND FOURTH MAGNETIC FIELDS ARE IN SUBSTANTIALLY DIRECT OPPOSITION ALONG A SECOND COMMON AXIS, THE FIRST AND SECOND COMMON AXES INTERSECTING AT A PREDETERMINED ANGLE, POTENTIOMETER MEANS FOR VARYING THE CURRENT THROUGH THE SECOND, THIRD AND FOURTH WINDINGS, THEREBY TO VARY THE MAGNITUDE OF THE RESPECTIVE FIELDS PRODUCED, THE POTENTIOMETER MEANS COMPRISING AN IMPENDANCE ELEMENT CONNECTED BETWEEN THE OTHER ENDS OF THE THIRD AND FOURTH WINDINGS AND CONTACT MEANS CONNECTED TO A POINT OF REFERENCE POTENTIAL AND DISPLACEABLY CONTACTING THE IMPEDANCE ELEMENTS.
Claim 2
Dependent Claim
208 words
IN AN INDICATOR GAUGE, APPARATUS FOR PRODUCING AN ANGULARLY DISPLACEABLE MAGNETIC FIELD COMPRISING A SOURCE OF ELECTRICAL ENERGY, A FIRST WINDING DIRECTLY CONNECTED ACROSS THE SOURCE FOR PRODUCING A FIRST MAGNETIC FIELD OF SUBSTANTIALLY CONSTANT MAGNITUDE ALONG THE AXIS OF THE FIRST WINDING, SECOND, THIRD AND FOURTH WINDINGS FOR PRODUCING SECOND, THIRD AND FOURTH MAGNETIC FIELDS, RESPECTIVELY, ALONG THE WINDING AXES, ONE END OF THE SECOND WINDING BEING CONNECTED TO THE SOURCE AND THE OTHER END BEING CONNECTED TO ONE END OF EACH OF THE THIRD AND FOURTH WINDINGS, THE FIRST AND SECOND WINDINGS BEING COAXIAL SUCH THAT THE FIRST AND SECOND MAGNETIC FIELDS ARE IN SUBSTANTIALLY DIRECT OPPOSITION ALONG A FIRST COMMON AXIS, AND THE THIRD AND FOURTH WINDINGS BEING COAXIAL SUCH THAT THE THIRD AND FOURTH MAGNETIC FIELDS ARE IN SUBSTANTIALLY DIRECT OPPOSITION ALONG A SECOND COMMON AXIS, THE FIRST AND SECOND COMMON AXES INTERSECTING AT A PREDETERMINED ANGLE, POTENTIOMETER MEANS FOR VARYING THE CURRENT THROUGH THE SECOND, THIRD AND FOURTH WINDINGS, THEREBY TO VARY THE MAGNITUDE OF THE RESPECTIVE FIELDS PRODUCED, THE POTENTIOMETER MEANS COMPRISING AN IMPENDANCE ELEMENT CONNECTED BETWEEN THE OTHER ENDS OF THE THIRD AND FOURTH WINDINGS AND CONTACT MEANS CONNECTED TO A POINT OF REFERENCE POTENTIAL AND DISPLACEABLY CONTACTING THE IMPEDANCE ELEMENTS.
References Cited (Backward Citations)
US2425366A
Cited
US2599756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |