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US3264593A
Expired / Lapsed
US
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Magnetic core with winding retaining plate
Assignee: Madison Management Group Inc
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Filing: 1963-04-29
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Granted: 1966-08-02
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 James D Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:37
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN ELECTRIC COIL STRUCTURE, COMPRISING A LAMINATED CORE OF RECTANGULAR SECTION, A COIL WINDING MOUNTED ON SAID CORE, STAMPED END PLATES FOR RETAINING SAID WINDING ON SAID CORE, EACH OF SAID END PLATES HAVING AN OPENING TO PROVIDE A CORE RECEIVING OPENING, FRICTION GRIPPING LUGS ON OPPOSED EDGES OF SAID OPENINGS EXTENDING OBLIQUELY AT AN ANGLE TO SAID PLATES AND FASTENER ELEMENTS EXTENDING THROUGH SAID LUGS IN SAID PLATES AND THROUGH CORRESPONDING OPENINGS IN SAID CORE TO HOLD SAID END PLATES IN POSITION ON SAID CORE AND TO RETAIN THE LAMINATIONS THEREOF IN FIXED RELATION, SAID END PLATES AND LUGS BEING ARRANGED AT THE ENDS OF THE CORE WITH THE LUGS EXTENDING IN OPPOSITE DIRECTIONS AND AWAY FROM SAID COIL, EACH OF SAID END PLATES BEING PROVIDED WITH A RADIAL SLOT EXTENDING FROM THE OPENING TO THE OUTER EDGE THEREOF.
Claim 2
Dependent Claim
140 words
AN ELECTRIC COIL STRUCTURE, COMPRISING A LAMINATED CORE OF RECTANGULAR SECTION, A COIL WINDING MOUNTED ON SAID CORE, STAMPED END PLATES FOR RETAINING SAID WINDING ON SAID CORE, EACH OF SAID END PLATES HAVING AN OPENING TO PROVIDE A CORE RECEIVING OPENING, FRICTION GRIPPING LUGS ON OPPOSED EDGES OF SAID OPENINGS EXTENDING OBLIQUELY AT AN ANGLE TO SAID PLATES AND FASTENER ELEMENTS EXTENDING THROUGH SAID LUGS IN SAID PLATES AND THROUGH CORRESPONDING OPENINGS IN SAID CORE TO HOLD SAID END PLATES IN POSITION ON SAID CORE AND TO RETAIN THE LAMINATIONS THEREOF IN FIXED RELATION, SAID END PLATES AND LUGS BEING ARRANGED AT THE ENDS OF THE CORE WITH THE LUGS EXTENDING IN OPPOSITE DIRECTIONS AND AWAY FROM SAID COIL, EACH OF SAID END PLATES BEING PROVIDED WITH A RADIAL SLOT EXTENDING FROM THE OPENING TO THE OUTER EDGE THEREOF.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |