US3128443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive transformers
Assignee: General Electric Co
•
Filing: 1958-08-06
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Granted: 1964-04-07
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Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Luther R Herman
- 👤 Howard T Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:54
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/085; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A REACTIVE TRANSFORMER COMPRISING A MAGNETIC CIRCUIT LOOP FORMED OF A PLURALITY OF LAMINATIONS OF MAGNETIC MATERIAL BENT FLATWISE TO FORM A CLOSED PATH ABOUT A CENTRAL WINDOW, A FLAT STACK OF LAMINATIONS PLACED AGAINST THE SIDE OF SAID CIRCUIT LOOP DEFINED BY THE EDGES OF THE LAMINATIONS OF SAID CIRCUIT LOOP ACROSS SAID CENTRAL WINDOW IN EDGE-TO-EDGE RELATIONSHIP WITH THE LAMINATIONS OF SAID LOOP, SAID LOOP BEING PROVIDED WITH A BUTT JOINT ON ONE SIDE OF SAID STACK OF LAMINATIONS, A PRIMARY ELECTRICAL WINDING ON SAID ONE SIDE OF SAID STACK OF LAMINATIONS AND OVERLYING SAID BUTT JOINT, AND A SECONDARY ELECTRICAL WINDING ON SAID LOOP ON SAID OTHER SIDE OF SAID STACK OF LAMINATIONS.
Claim 2
Dependent Claim
116 words
A REACTIVE TRANSFORMER COMPRISING A MAGNETIC CIRCUIT LOOP FORMED OF A PLURALITY OF LAMINATIONS OF MAGNETIC MATERIAL BENT FLATWISE TO FORM A CLOSED PATH ABOUT A CENTRAL WINDOW, A FLAT STACK OF LAMINATIONS PLACED AGAINST THE SIDE OF SAID CIRCUIT LOOP DEFINED BY THE EDGES OF THE LAMINATIONS OF SAID CIRCUIT LOOP ACROSS SAID CENTRAL WINDOW IN EDGE-TO-EDGE RELATIONSHIP WITH THE LAMINATIONS OF SAID LOOP, SAID LOOP BEING PROVIDED WITH A BUTT JOINT ON ONE SIDE OF SAID STACK OF LAMINATIONS, A PRIMARY ELECTRICAL WINDING ON SAID ONE SIDE OF SAID STACK OF LAMINATIONS AND OVERLYING SAID BUTT JOINT, AND A SECONDARY ELECTRICAL WINDING ON SAID LOOP ON SAID OTHER SIDE OF SAID STACK OF LAMINATIONS.
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |