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US3240965A Expired / Lapsed US ⏱️ 0.0 years remaining

Electromagnetic motor for a data indicator

Assignee: Patent Button Co
•
Filing: 1964-07-07
•
Granted: 1966-03-15
•
Expires: 1984-07-07
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Abstract

No abstract record available.

Inventors

  • 👤 Robert F Casey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:32
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/24; G08B5/30

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 155 words
IN AN ELECTROMAGNETIC INDICATOR OF THE TYPE UTILIZING A STATOR HAVING ELECTRICALLY ENERGIZABLE WINDINGS MOUNTED UPON AN ANNULAR CORE OF SELECTIVELY ESTABLISHING A PLURALITY OF DISCRETELY ORIENTED MAGNETIC FIELDS, AND A ROTOR HAVING A SALIENT POLE MAGNET MOUNTED TO PIVOT WITHIN THE ANNULAR CORE WHEREBY THE MAGNET ROTATES INTO ALIGNMENT WITH THE MAGNETIC FIELD ESTABLISHED BY THE STATOR, THE IMPROVEMENT WHEREIN THE CORE OF THE STATOR COMPRISES A PAIR OF MAGNETICALLY PERMEABLE ANNULAR ELEMENTS AND A RING OF MAGNETICALLY PERMEABLE MATERIAL CONCENTRIC WITH AND CONTIGUOUS TO THE PAIR OF ANNULAR ELEMENTS THE RING HAVING TEETH PROTRUDING RADIALLY INWARDLY BEYOND THE PAIR OF ANNULAR ELEMENTS AND THE RELATIONSHIP OF THE TEETH TO THE DISCRETELY ORIENTED MAGNETIC FIELDS BEING SUCH THAT A DIFFERENT TOOTH IS CLOSEST TO BUT OFFSET FROM A SALIENT POLE OF THE MAGNET FOR EACH ALIGNED POSITION THAT THE MAGNETIC ASSUMES IN RESPONSE TO THE MAGNETIC FIELDS ESTABLISHED BY ENERGIZATION OF THE STATOR''S WINDINGS.
Claim 2
Dependent Claim 155 words
IN AN ELECTROMAGNETIC INDICATOR OF THE TYPE UTILIZING A STATOR HAVING ELECTRICALLY ENERGIZABLE WINDINGS MOUNTED UPON AN ANNULAR CORE OF SELECTIVELY ESTABLISHING A PLURALITY OF DISCRETELY ORIENTED MAGNETIC FIELDS, AND A ROTOR HAVING A SALIENT POLE MAGNET MOUNTED TO PIVOT WITHIN THE ANNULAR CORE WHEREBY THE MAGNET ROTATES INTO ALIGNMENT WITH THE MAGNETIC FIELD ESTABLISHED BY THE STATOR, THE IMPROVEMENT WHEREIN THE CORE OF THE STATOR COMPRISES A PAIR OF MAGNETICALLY PERMEABLE ANNULAR ELEMENTS AND A RING OF MAGNETICALLY PERMEABLE MATERIAL CONCENTRIC WITH AND CONTIGUOUS TO THE PAIR OF ANNULAR ELEMENTS THE RING HAVING TEETH PROTRUDING RADIALLY INWARDLY BEYOND THE PAIR OF ANNULAR ELEMENTS AND THE RELATIONSHIP OF THE TEETH TO THE DISCRETELY ORIENTED MAGNETIC FIELDS BEING SUCH THAT A DIFFERENT TOOTH IS CLOSEST TO BUT OFFSET FROM A SALIENT POLE OF THE MAGNET FOR EACH ALIGNED POSITION THAT THE MAGNETIC ASSUMES IN RESPONSE TO THE MAGNETIC FIELDS ESTABLISHED BY ENERGIZATION OF THE STATOR''S WINDINGS.

References Cited (Backward Citations)

US258818A Cited
US2433608A Cited
US2428882A Cited
US2659853A Cited
US2627040A Cited
US2837670A Cited
US2806987A Cited
US2943313A Cited
US3042818A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-14 1969-09-13 1970-03-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-14 1973-09-13 1974-03-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-14 1977-09-13 1978-03-15 $7700.00 Window Closed / Lapsed

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