US3195090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core structures
Assignee: Westinghouse Electric Corp
•
Filing: 1961-06-07
•
Granted: 1965-07-13
•
Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Burkhardt
- 👤 Belvin B Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/245; H01F27/2455
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A THREE-PHASE MAGNETIC CORE COMPRISING A SUBSTANTIALLY RECTANGULAR CLOSED LOOP MEMBER INCLUDING A PLURALITY OF LAYERS OF LAMINATIONS FORMED FROM MAGNETIC STRIP MATERIAL AND ASSEMBLED IN NEXTED RELATIONSHIP, TWO PARALLEL SIDES OF SAID RECTANGULAR LOOP MEMBER FORMING FIRST AND SECOND LEG PORTIONS OF SAID CORE AND THE OTHER PARALLEL SIDES FORMING YOKE PORTIONS CONNECTING SAID LEG PORTIONS, ALTERNATE LAYERS OF LAMINATIONS IN EACH OF SAID YOKE PORTIONS INCLUDING RECESSES THEREIN, AND A HALF LOOP MEMBER INCLUDING A PLURALITY OF LAYERS OF LAMINATIONS FORMED FROM MAGNETIC STRIP MATERIAL HAVING AT LEAST TWO PREFERRED DIRECTION OF MAGNETIC ORIENTATION AND ASSEMBLED IN SUPERPOSED RELATION TO FORM A SUBSTANTIALLY STRAIGHT THIRD LEG PORTION AND CONNECTING YOKE PORTIONS AT SUBSTANTIALLY RIGHT ANGLES TO THE THIRD LEG PORTION, TH E YOKE PORTIONS OF SAID HALF LOOP MEMBER BEING DISPOSED AT SUBSTANTIALLY A RIGHT ANGLE WITH RESPECT TO SAID CLOSED LOOP MEMBER WITH THE ENDS OF ALTERNATE LAYERS OF LAMINATIONS IN THE YOKE PORTIONS OF SAID HALF LOOP MEMBER BEING DISPOSED IN THE RECESSES OF THE YOKE PORTIONS OF SAID CLOSED LOOP MEMBE TO FORM A SERIES OF BUTT-LAP JOINTS WITH THE LAMINATIONS OF SAID CLOSED LOOP MEMBER.
Claim 2
Dependent Claim
191 words
A THREE-PHASE MAGNETIC CORE COMPRISING A SUBSTANTIALLY RECTANGULAR CLOSED LOOP MEMBER INCLUDING A PLURALITY OF LAYERS OF LAMINATIONS FORMED FROM MAGNETIC STRIP MATERIAL AND ASSEMBLED IN NEXTED RELATIONSHIP, TWO PARALLEL SIDES OF SAID RECTANGULAR LOOP MEMBER FORMING FIRST AND SECOND LEG PORTIONS OF SAID CORE AND THE OTHER PARALLEL SIDES FORMING YOKE PORTIONS CONNECTING SAID LEG PORTIONS, ALTERNATE LAYERS OF LAMINATIONS IN EACH OF SAID YOKE PORTIONS INCLUDING RECESSES THEREIN, AND A HALF LOOP MEMBER INCLUDING A PLURALITY OF LAYERS OF LAMINATIONS FORMED FROM MAGNETIC STRIP MATERIAL HAVING AT LEAST TWO PREFERRED DIRECTION OF MAGNETIC ORIENTATION AND ASSEMBLED IN SUPERPOSED RELATION TO FORM A SUBSTANTIALLY STRAIGHT THIRD LEG PORTION AND CONNECTING YOKE PORTIONS AT SUBSTANTIALLY RIGHT ANGLES TO THE THIRD LEG PORTION, TH E YOKE PORTIONS OF SAID HALF LOOP MEMBER BEING DISPOSED AT SUBSTANTIALLY A RIGHT ANGLE WITH RESPECT TO SAID CLOSED LOOP MEMBER WITH THE ENDS OF ALTERNATE LAYERS OF LAMINATIONS IN THE YOKE PORTIONS OF SAID HALF LOOP MEMBER BEING DISPOSED IN THE RECESSES OF THE YOKE PORTIONS OF SAID CLOSED LOOP MEMBE TO FORM A SERIES OF BUTT-LAP JOINTS WITH THE LAMINATIONS OF SAID CLOSED LOOP MEMBER.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |