US3137832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated magnetic core structure
Assignee: General Electric Co
•
Filing: 1960-12-27
•
Granted: 1964-06-16
•
Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Hurt
- 👤 Donald F Radke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:07
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/245; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A MAGNETIC CORE HAVING A STRAIGHT LAMINATED WINDING LEG, SAID LEG IN CROSS SECTION BEING AN OBTUSE POLYGON HAVING AN EVEN NUMBER OF SIDES EACH OF WHICH IS A CHORD OF A CIRCLE CIRCUMSCRIBING SAID POLYGON, SAID POLYGON COMPRISING AT LEAST TWO EQUAL SIZE MULTI-LAMINATION PACKETS OF ISOSCELES TRAPEZOIDAL CROSS SECTIONAL CONFIGURATION WHOSE NON-PARALLEL SIDES FORM FOUR OF THE SIDES OF SAID POLYGON AND THE SHORTER OF WHOSE PARALLEL SIDES FORM TWO OTHER SIDES OF SAID POLYGON, THERE BEING AT LEAST THREE LAMINATIONS IN EACH OF SAID PACKETS ALL OF WHICH LAMINATIONS IN EACH PACKET ARE OF DIFFERENT WIDTH WITH THE DIFFERENCE IN WIDTH OF ADJACENT LAMINATIONS IN EACH PACKET BEING CONSTANT.
Claim 2
Dependent Claim
112 words
A MAGNETIC CORE HAVING A STRAIGHT LAMINATED WINDING LEG, SAID LEG IN CROSS SECTION BEING AN OBTUSE POLYGON HAVING AN EVEN NUMBER OF SIDES EACH OF WHICH IS A CHORD OF A CIRCLE CIRCUMSCRIBING SAID POLYGON, SAID POLYGON COMPRISING AT LEAST TWO EQUAL SIZE MULTI-LAMINATION PACKETS OF ISOSCELES TRAPEZOIDAL CROSS SECTIONAL CONFIGURATION WHOSE NON-PARALLEL SIDES FORM FOUR OF THE SIDES OF SAID POLYGON AND THE SHORTER OF WHOSE PARALLEL SIDES FORM TWO OTHER SIDES OF SAID POLYGON, THERE BEING AT LEAST THREE LAMINATIONS IN EACH OF SAID PACKETS ALL OF WHICH LAMINATIONS IN EACH PACKET ARE OF DIFFERENT WIDTH WITH THE DIFFERENCE IN WIDTH OF ADJACENT LAMINATIONS IN EACH PACKET BEING CONSTANT.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |