US3078411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1959-01-30
•
Granted: 1963-02-19
•
Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Book
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2847; H01F29/00; H01F29/02; H01F2027/2857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
AN ELECTRICAL APPARATUS COMPRISING A MAGNETIC CORE, A FIRST WINDING INCLUDING A PLURALITY OF TURNS OF A LAYER OF CONDUCTING SHEET MATERIAL AND A LAYER OF INSULATING SHEET MATERIAL WOUND TOGETHER ON SAID CORE, A SECOND WINDING INCLUDING A PLURALITY OF TURNS OF A LAYER OF CONDUCTING SHEET MATERIAL AND AT LEAST ONE LAYER OF INSULATING SHEET MATERIAL, THE TURNS OF SAID SECOND WINDING BEING WOUND WITH AND CONTINUOUSLY INTERLEAVED WITH A PORTION OF THE TURNS OF SAID FIRST WINDING TO PROVIDE A PREDETERMINED CAPACITANCE BETWEEN THE TURNS OF SAID FIRST AND SECOND WINDINGS, ONE TURN OF EACH OF THE LAYERS OF CONDUCTING SHEET MATERIAL OF SAID FIRST AND SECOND WINDINGS BEING CONNECTED TO A COMMON TERMINAL, AND FIRST AND SECOND MEANS FOR CHANGING THE ACTIVE TURNS AT THE INNER AND OUTER ENDS, RESPECTIVELY, OF ONE OF SAID WINDINGS TO VARY THE VOLTAGE APPLIED TO SAID CAPACITANCE WHEN A POTENTIAL IS APPLIED ACROSS ONE OF SAID WINDINGS SUBSTANTIALLY INDEPENDENTLY OF THE RATIO BETWEEN THE TURNS OF SAID FIRST AND SECOND WINDINGS, SAID FIRST AND SECOND MEANS BEING CONNECTED IN CIRCUIT RELATION WITH THE ASSOCIATED WINDING.
Claim 2
Dependent Claim
185 words
AN ELECTRICAL APPARATUS COMPRISING A MAGNETIC CORE, A FIRST WINDING INCLUDING A PLURALITY OF TURNS OF A LAYER OF CONDUCTING SHEET MATERIAL AND A LAYER OF INSULATING SHEET MATERIAL WOUND TOGETHER ON SAID CORE, A SECOND WINDING INCLUDING A PLURALITY OF TURNS OF A LAYER OF CONDUCTING SHEET MATERIAL AND AT LEAST ONE LAYER OF INSULATING SHEET MATERIAL, THE TURNS OF SAID SECOND WINDING BEING WOUND WITH AND CONTINUOUSLY INTERLEAVED WITH A PORTION OF THE TURNS OF SAID FIRST WINDING TO PROVIDE A PREDETERMINED CAPACITANCE BETWEEN THE TURNS OF SAID FIRST AND SECOND WINDINGS, ONE TURN OF EACH OF THE LAYERS OF CONDUCTING SHEET MATERIAL OF SAID FIRST AND SECOND WINDINGS BEING CONNECTED TO A COMMON TERMINAL, AND FIRST AND SECOND MEANS FOR CHANGING THE ACTIVE TURNS AT THE INNER AND OUTER ENDS, RESPECTIVELY, OF ONE OF SAID WINDINGS TO VARY THE VOLTAGE APPLIED TO SAID CAPACITANCE WHEN A POTENTIAL IS APPLIED ACROSS ONE OF SAID WINDINGS SUBSTANTIALLY INDEPENDENTLY OF THE RATIO BETWEEN THE TURNS OF SAID FIRST AND SECOND WINDINGS, SAID FIRST AND SECOND MEANS BEING CONNECTED IN CIRCUIT RELATION WITH THE ASSOCIATED WINDING.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |