US3132413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making transformer core
Assignee: MODERN HANDLING METHODS Ltd
•
Filing: 1961-01-27
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Granted: 1964-05-12
•
Expires: 1981-01-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Stopps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:29
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F27/00; H01F27/24; H01F27/245; H01F27/2455; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF MAKING X LAMINATED TRANSFORMER CORES COMPRISING THE STEPS OF: WINDING X SUBSTANTIALLY IDENTICAL COILS EACH HAVING OPPOSED LINEAR SIDES FROM MAGNETIC STRIP MATERIAL, X BEING A NUMBER GREATER THAN 2, CUTTING A SINGLE CORRESPONDING SIDE OF EACH OF SAID X COILS IN A PLANE SUBSTANTIALLY AT RIGHT ANGLES TO THE LONGITUDINAL EDGES OF THE MAGNETIC STRIP MATERIAL FROM WHICH THEY ARE MADE, WHEREBY TO PRODUCE A PLURALITY OF INDIVIDUAL LOOPS FROM EACH COIL, EACH OF SAID COILS BEING CUT AS AFORESAID OFFSET ALONG SAID SINGLE SIDE FROM THE CUT IN EACH OF THE OTHER OF SAID COILS, REASSEMBLING THE LOOPS OF SAID X COILS INTO X TRANSFORMER CORES IN WHICH EACH LOOP OCCUPIES THE SAME RADIAL ORDER AS IT DID IN ITS RESPECTIVE COIL AND IN WHICH ADJACENT LOOPS ARE FROM DIFFERENT COILS IN SEQUENCES OF X LOOPS AND THE ENDS OF THE LOOPS FORMED BY CUTTING FOR EACH CORE ARE DISPOSED ALONG A COMMON SIDE OF THE CORE.
Claim 2
Independent Claim
162 words
A METHOD OF MAKING X LAMINATED TRANSFORMER CORES COMPRISING THE STEPS OF: WINDING X SUBSTANTIALLY IDENTICAL COILS EACH HAVING OPPOSED LINEAR SIDES FROM MAGNETIC STRIP MATERIAL, X BEING A NUMBER GREATER THAN 2, CUTTING A SINGLE CORRESPONDING SIDE OF EACH OF SAID X COILS IN A PLANE SUBSTANTIALLY AT RIGHT ANGLES TO THE LONGITUDINAL EDGES OF THE MAGNETIC STRIP MATERIAL FROM WHICH THEY ARE MADE, WHEREBY TO PRODUCE A PLURALITY OF INDIVIDUAL LOOPS FROM EACH COIL, EACH OF SAID COILS BEING CUT AS AFORESAID OFFSET ALONG SAID SINGLE SIDE FROM THE CUT IN EACH OF THE OTHER OF SAID COILS, REASSEMBLING THE LOOPS OF SAID X COILS INTO X TRANSFORMER CORES IN WHICH EACH LOOP OCCUPIES THE SAME RADIAL ORDER AS IT DID IN ITS RESPECTIVE COIL AND IN WHICH ADJACENT LOOPS ARE FROM DIFFERENT COILS IN SEQUENCES OF X LOOPS AND THE ENDS OF THE LOOPS FORMED BY CUTTING FOR EACH CORE ARE DISPOSED ALONG A COMMON SIDE OF THE CORE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |