Patent US3129347A successfully refreshed from Google Patents.
US3129347A
Expired / Lapsed
US
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Magneto-electric motion detecting transducer
Assignee: Bendix Corp
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Filing: 1960-07-20
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Granted: 1964-04-14
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Tognola Tullio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:08
CPC Classifications
G; G01; G01H; G01H11/00; G01H11/02; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/11; G10; G10K; G10K11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A VIBRATION-DETECTING TRANSDUCER, WHICH COMPRISES AN ELONGATED CYLINDRICAL NON-MAGNETIC TUBULAR HOUSING, MEANS FIXEDLY MOUNTING AN ANNULAR PICK-UP COIL COAXIAL OF THE HOUSING AND INTERMEDIATE THE LENGTH OF THE HOUSING, A CIRCULAR PERMANENT MAGNET FITTING WITHIN THE HOUSING AND SLIDABLE LONGITUDINALLY THEREWITHIN SUBSTANTIALLY FREE OF MECHANICAL RESTRICTION OF SUCH SLIDING MOVEMENT, SAID MOVABLE MAGNET BEING FLUX COUPLED TO THE COIL AND HAVING OPPOSITE POLES AT OPPOSITE ENDS THEREOF, TWO CIRCULAR PERMANENT MAGNETS BEYOND THE OPPOSITE ENDS OF THE MOVABLE MAGNET AND FIXEDLY CONNECTED TO THE HOUSING, THE ENDS OF THE FIXED MAGNETS CONFRONTING THE ENDS OF THE MOVABLE MAGNET BEING SPACED FROM THE ENDS OF THE MOV-
Claim 2
Dependent Claim
106 words
A VIBRATION-DETECTING TRANSDUCER, WHICH COMPRISES AN ELONGATED CYLINDRICAL NON-MAGNETIC TUBULAR HOUSING, MEANS FIXEDLY MOUNTING AN ANNULAR PICK-UP COIL COAXIAL OF THE HOUSING AND INTERMEDIATE THE LENGTH OF THE HOUSING, A CIRCULAR PERMANENT MAGNET FITTING WITHIN THE HOUSING AND SLIDABLE LONGITUDINALLY THEREWITHIN SUBSTANTIALLY FREE OF MECHANICAL RESTRICTION OF SUCH SLIDING MOVEMENT, SAID MOVABLE MAGNET BEING FLUX COUPLED TO THE COIL AND HAVING OPPOSITE POLES AT OPPOSITE ENDS THEREOF, TWO CIRCULAR PERMANENT MAGNETS BEYOND THE OPPOSITE ENDS OF THE MOVABLE MAGNET AND FIXEDLY CONNECTED TO THE HOUSING, THE ENDS OF THE FIXED MAGNETS CONFRONTING THE ENDS OF THE MOVABLE MAGNET BEING SPACED FROM THE ENDS OF THE MOV-
References Cited (Backward Citations)
US503213A
Cited
US1619677A
Cited
US2070121A
Cited
US2852243A
Cited
US2946218A
Cited
US2856240A
Cited
US2946230A
Cited
US2913701A
Cited
US3065366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |