US3403323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical energy translating devices and regulators using the same
Assignee: WANLASS ELECTRIC CO
•
Filing: 1965-05-14
•
Granted: 1968-09-24
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Wanlass Leslie Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/325; H; H01; H01F; H01F29/00; H01F29/14; H01F29/143; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0076; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/82
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
A VARIABLE TRANSFORMER COMPRISING A MAGNETIC CORE HAVING FOUR COMMON REGIONS AND TWO END REGIONS MAGNETICALLY JOINING SAID COMMON REGIONS, A PRIMARY WINDING WOUND ON SAID CORE BETWEEN THE FIRST AND FOURTH AND THE SECOND AND THIRD OF SAID COMMON REGIONS, MEANS FOR CONTINUOUSLY SUPPLYING ALTERNATING CURRENT TO SAID PRIMARY WINDING; A SECONDARY WINDING; A CONTROL WINDING; SAID SECONDARY WINDING AND SAID CONTROL WINDING BEING WOUND ON SAID BORE BETWEEN SAID FIRST AND SECOND AND SAID THIRD AND FOURTH COMMON REGIONS AND SUBSTANTIALLY TRANSVERSE TO SAID PRIMARY WINDING WHEREBY NORMALLY WINDING TO SAID POWER IS TRANSFERRED FROM SAID PRIMARY WINDING TO SAID SECONDARY WINDING; AND MEANS FOR CONTINUOUSLY SUPPLYING CURRENT TO SAID CONTROL WINDING, SAID SUPPLYING OF CURRENT CAUSING POWER TO BE TRANSFERRED FROM SAID PRIMARY WINDING TO SAID SECONDARY WINDING.
References Cited (Backward Citations)
US1376978A
Cited
US1793213A
Cited
US2311796A
Cited
US2443006A
Cited
US2445857A
Cited
US2486250A
Cited
US2703388A
Cited
US2820109A
Cited
US2862188A
Cited
US2939068A
Cited
US3093817A
Cited
US2814786A
Cited
US2987667A
Cited
US2927260A
Cited
US2919416A
Cited
US2883604A
Cited
US2990521A
Cited
US2883605A
Cited
US3106702A
Cited
US2985768A
Cited
US3134964A
Cited
US3007120A
Cited
US3048767A
Cited
US3088039A
Cited
US3061820A
Cited
US3097305A
Cited
US3124785A
Cited
US2983829A
Cited
US3110857A
Cited
US3056118A
Cited
US3238517A
Cited
US3289179A
Cited
US3259888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |