US3411155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic detent apparatus for electromagnetic indicator wheel structure
Assignee: United Carr Inc
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Filing: 1966-09-29
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Granted: 1968-11-12
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Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 John A Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:10
CPC Classifications
G; G09; G09F; G09F11/00; G09F11/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A SYMBOL DISPLAY DEVICE OF THE TYPE UTILIZING: (1) A PANEL HAVING A WINDOW; (2) A STATOR HAVING RADIAL POLES PROTRUDING INWARDLY FROM AN ANNULAR FERROMAGNETIC CORE, THE RADIAL POLES CARRYING ELECTRICALLY ENERGIZABLE WINDINGS FOR CAUSING THE STATOR TO SELECTIVELY ESTABLISH ANY ONE OF A PLURALITY OF DISCRETELY ORIENTED MAGNETIC FIELDS; AND (3) A ROTOR HAVING A PERMANENT MAGNET ATTACHED TO A DRUM, THE PERMANENT MAGNET BEING ENCIRCLED BY THE STATOR''S ANNULAR CORE, THE DRUM HAVING SYMBOLS MARKED UPON ITS PERIPHERY AND BEING SITUATED TO PRESENT ITS SYMBOLS IN THE WINDOW OF THE PANEL, THE ROTOR BEING MOUNTED TO PERMIT THE PERMANENT MAGNETIC TO ROTATE INTO ALIGNMENT WITH THE DISCRETELY ORIENTED MAGNETIC FIELD ESTABLISHED BY THE STATOR;
Claim 2
Dependent Claim
118 words
IN A SYMBOL DISPLAY DEVICE OF THE TYPE UTILIZING: (1) A PANEL HAVING A WINDOW; (2) A STATOR HAVING RADIAL POLES PROTRUDING INWARDLY FROM AN ANNULAR FERROMAGNETIC CORE, THE RADIAL POLES CARRYING ELECTRICALLY ENERGIZABLE WINDINGS FOR CAUSING THE STATOR TO SELECTIVELY ESTABLISH ANY ONE OF A PLURALITY OF DISCRETELY ORIENTED MAGNETIC FIELDS; AND (3) A ROTOR HAVING A PERMANENT MAGNET ATTACHED TO A DRUM, THE PERMANENT MAGNET BEING ENCIRCLED BY THE STATOR''S ANNULAR CORE, THE DRUM HAVING SYMBOLS MARKED UPON ITS PERIPHERY AND BEING SITUATED TO PRESENT ITS SYMBOLS IN THE WINDOW OF THE PANEL, THE ROTOR BEING MOUNTED TO PERMIT THE PERMANENT MAGNETIC TO ROTATE INTO ALIGNMENT WITH THE DISCRETELY ORIENTED MAGNETIC FIELD ESTABLISHED BY THE STATOR;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |