US3306104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direction sensor
Assignee: Beckman and Whitley Inc
•
Filing: 1964-05-18
•
Granted: 1967-02-28
•
Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 John W Corcoran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:16
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A DEVICE FOR TRANSDUCING ANGULAR SHAFT POSITION TO AN ELECTRICAL SIGNAL THE COMBINATION COMPRISING; A FIRST CAPACITOR PLATE INCLUDING FOUR ELECTRICALLY SEPARATE CONDUCTING SEGMENTS HAVING THE SHAPE OF QUADRANTS OF AN ANNULUS AND DISPOSED IN A CIRCULAR PATTERN; MEANS IMPOSING AN A.C. ELECTRICAL SIGNAL ON THE CONDUCTING SEGMENTS SUCH THAT THE PHASE OF THE SIGNAL PROGRESSES 90* PER SEGMENT AROUND THE CIRCULAR PATTERN; A SECOND CAPACITOR PLATE DISPOSED ON THE SHAFT IN COAXIAL FACING RELATION TO SAID FIRST PLATE AND ANGULARLY MOVABLE RELATIVE THERETO, SAID SECOND PLATE HAVING THE GEOMETRIC FORM DESCRIBED BY
Claim 2
Dependent Claim
94 words
IN A DEVICE FOR TRANSDUCING ANGULAR SHAFT POSITION TO AN ELECTRICAL SIGNAL THE COMBINATION COMPRISING; A FIRST CAPACITOR PLATE INCLUDING FOUR ELECTRICALLY SEPARATE CONDUCTING SEGMENTS HAVING THE SHAPE OF QUADRANTS OF AN ANNULUS AND DISPOSED IN A CIRCULAR PATTERN; MEANS IMPOSING AN A.C. ELECTRICAL SIGNAL ON THE CONDUCTING SEGMENTS SUCH THAT THE PHASE OF THE SIGNAL PROGRESSES 90* PER SEGMENT AROUND THE CIRCULAR PATTERN; A SECOND CAPACITOR PLATE DISPOSED ON THE SHAFT IN COAXIAL FACING RELATION TO SAID FIRST PLATE AND ANGULARLY MOVABLE RELATIVE THERETO, SAID SECOND PLATE HAVING THE GEOMETRIC FORM DESCRIBED BY
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |