US3139600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable voltage generator
Assignee: GTE Sylvania Inc
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Filing: 1960-12-12
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Granted: 1964-06-30
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Rasmanis Egons
- 👤 Gerald J Selvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/83; H; H02; H02P; H02P9/00; H02P9/14; H02P9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A VARIABLE VOLTAGE GENERATOR COMPRISING, IN COMBINATION, FIRST AND SECOND PERMANENT MAGNETS, SAID SECOND MAGNET SUBSTANTIALLY SURROUNDING SAID FIRST MAGNET AND ROTATABLE WITH RESPECT THERETO TO PROVIDE A MAGNETIC FIELD OF MAXIMUM INTENSITY WHEN LIKE POLES OF SAID FIRST AND SECOND MAGNETS ARE ADJACENT AND OF MINIMUM INTENSITY WHEN OPPOSITE POLES OF SAID FIRST AND SECOND MAGNETS ARE ADJACENT, A SEMICONDUCTOR WAFER DISPOSED IN SAID MAGNETIC FIELD SUBSTANTIALLY NORMAL TO THE LINES OF MAGNETIC FLUX WHEN SAID MAGNETIC FIELD IS OF MAXIMUM INTENSITY AND HAVING CURRENT SUPPLY TERMINALS AND HALL ELECTRODES TO PROVIDE AN OUTPUT VOLTAGE PROPORTIONAL TO THE PRODUCT OF THE CURRENT IN SAID SEMICONDUCTOR AND THE INTENSITY OF SAID MAGNETIC FIELD, AND MEANS FOR ROTATING SAID SECOND MAGNET RELATIVE TO SAID FIRST MAGNET FOR VARYING THE INTENSITY OF SAID MAGNETIC FIELD.
Claim 2
Dependent Claim
133 words
A VARIABLE VOLTAGE GENERATOR COMPRISING, IN COMBINATION, FIRST AND SECOND PERMANENT MAGNETS, SAID SECOND MAGNET SUBSTANTIALLY SURROUNDING SAID FIRST MAGNET AND ROTATABLE WITH RESPECT THERETO TO PROVIDE A MAGNETIC FIELD OF MAXIMUM INTENSITY WHEN LIKE POLES OF SAID FIRST AND SECOND MAGNETS ARE ADJACENT AND OF MINIMUM INTENSITY WHEN OPPOSITE POLES OF SAID FIRST AND SECOND MAGNETS ARE ADJACENT, A SEMICONDUCTOR WAFER DISPOSED IN SAID MAGNETIC FIELD SUBSTANTIALLY NORMAL TO THE LINES OF MAGNETIC FLUX WHEN SAID MAGNETIC FIELD IS OF MAXIMUM INTENSITY AND HAVING CURRENT SUPPLY TERMINALS AND HALL ELECTRODES TO PROVIDE AN OUTPUT VOLTAGE PROPORTIONAL TO THE PRODUCT OF THE CURRENT IN SAID SEMICONDUCTOR AND THE INTENSITY OF SAID MAGNETIC FIELD, AND MEANS FOR ROTATING SAID SECOND MAGNET RELATIVE TO SAID FIRST MAGNET FOR VARYING THE INTENSITY OF SAID MAGNETIC FIELD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |