US3206580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid immersed tap changing switching system for transformers
Assignee: General Electric Co
•
Filing: 1962-08-28
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Granted: 1965-09-14
•
Expires: 1982-08-28
Abstract
No abstract record available.
Inventors
- 👤 Orin P Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:09
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/02; H01F29/04; H01H; H01H9/00; H01H9/0005; H01H9/0038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A TRANSFORMER TAP CHANGING UNDER LOAD SYSTEM, A MAIN CIRCUIT CONDUCTOR, A PAIR OF BRANCH CIRCUIT CONDUCTORS FOR RESPECTIVE CONNECTION THROUGH THE HALVES OF A PREVENTIVE REACTOR TO THE CONTACT FINGERS OF A DOUBLE FINGER NON-ARCING DUTY RATIO ADJUSTER SWITCH MOVABLE BETWEEN SPACED FIXED TAP CONTACTS, NON-ARCING DUTY SELECTOR SWITCHING MEANS FOR NORMALLY CONNECTING SAID MAIN CIRCUIT CONDUCTOR TO BOTH BRANCH CIRCUIT CONDUCTORS SIMULTANEOUSLY AND FOR SELECTIVELY DISCONNECTING EITHER BRANCH CIRCUIT CONDUCTOR FROM SAID MAIN CIRCUIT CONDUCTOR WHILE MAINTAINING A CONNECTION BETWEEN SAID MAIN CIRCUIT CONDUCTOR AND THE OTHER BRANCH CIRCUIT CONDUCTOR, A SINGLE NORMALLY
Claim 2
Dependent Claim
96 words
IN A TRANSFORMER TAP CHANGING UNDER LOAD SYSTEM, A MAIN CIRCUIT CONDUCTOR, A PAIR OF BRANCH CIRCUIT CONDUCTORS FOR RESPECTIVE CONNECTION THROUGH THE HALVES OF A PREVENTIVE REACTOR TO THE CONTACT FINGERS OF A DOUBLE FINGER NON-ARCING DUTY RATIO ADJUSTER SWITCH MOVABLE BETWEEN SPACED FIXED TAP CONTACTS, NON-ARCING DUTY SELECTOR SWITCHING MEANS FOR NORMALLY CONNECTING SAID MAIN CIRCUIT CONDUCTOR TO BOTH BRANCH CIRCUIT CONDUCTORS SIMULTANEOUSLY AND FOR SELECTIVELY DISCONNECTING EITHER BRANCH CIRCUIT CONDUCTOR FROM SAID MAIN CIRCUIT CONDUCTOR WHILE MAINTAINING A CONNECTION BETWEEN SAID MAIN CIRCUIT CONDUCTOR AND THE OTHER BRANCH CIRCUIT CONDUCTOR, A SINGLE NORMALLY
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |