US3466744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing cores
Assignee: Kuhlman Electric Corp
•
Filing: 1963-08-19
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Granted: 1969-09-16
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur V Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:19
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F41/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49073; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF MANUFACTURING AN ELECTROMAGNETIC INDUCTION APPARATUS WHICH COMPRISES THE STEPS OF CONCURRENTLY WINDING A PLURALITY OF FACE-ABUTTING STRIPS OF MAGNETIC MATERIAL INTO INTERLEAVED SPIRALS, ANNEALING THE MAGNETIC MATERIAL OF SAID SPIRALS, UNWINDING SAID SPIRALS, SERVING A DIFFERENT INITIAL LENGTH OF MATERIAL FROM EACH OF SAID STRIPS DURING UNWINDING TO FORM AN INITIAL STRIP PORTION FROM EACH OF THE STRIPS, THEREAFTER SEVERING EACH OF SAID STRIPS INTO STRIP PORTIONS OF EQUAL TURN LENGTHS DURING UNWINDING, AND SUCCESSIVELY REASSEMBLING SAID STRIP PORTIONS INTO AND ON A PREFORMED ELECTRICAL WINDING STRUCTURE INTO THEIR WOUND, INTERLEAVED SPIRAL RELATIONSHIP.
Claim 2
Independent Claim
96 words
THE METHOD OF MANUFACTURING AN ELECTROMAGNETIC INDUCTION APPARATUS WHICH COMPRISES THE STEPS OF CONCURRENTLY WINDING A PLURALITY OF FACE-ABUTTING STRIPS OF MAGNETIC MATERIAL INTO INTERLEAVED SPIRALS, ANNEALING THE MAGNETIC MATERIAL OF SAID SPIRALS, UNWINDING SAID SPIRALS, SERVING A DIFFERENT INITIAL LENGTH OF MATERIAL FROM EACH OF SAID STRIPS DURING UNWINDING TO FORM AN INITIAL STRIP PORTION FROM EACH OF THE STRIPS, THEREAFTER SEVERING EACH OF SAID STRIPS INTO STRIP PORTIONS OF EQUAL TURN LENGTHS DURING UNWINDING, AND SUCCESSIVELY REASSEMBLING SAID STRIP PORTIONS INTO AND ON A PREFORMED ELECTRICAL WINDING STRUCTURE INTO THEIR WOUND, INTERLEAVED SPIRAL RELATIONSHIP.
References Cited (Backward Citations)
US1940847A
Cited
GB521125A
Cited
US2689396A
Cited
US3008222A
Cited
US2927366A
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US3122821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |