US3275929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic load tap changer systems
Assignee: Westinghouse Electric Corp
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Filing: 1963-06-12
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Granted: 1966-09-27
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Robert A Schatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:38
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/14; G05F1/16; G05F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A TAP CHANGER SYSTEM COMPRISING AN ALTERNATING POTENTIAL SOURCE, AN ALTERNATING POTENTIAL LOAD, MEANS INCLUDING AN INDUCTIVE WINDING HAVING TAP CONNECTIONS THEREON CONNECTED IN CIRCUIT RELATION WITH SAID ALTERNATING POTENTIAL SOURCE AND SAID ALTERNATING POTENTIAL LOAD, RECTIFIER MEANS CONNECTED IN CIRCUIT RELATION WITH CERTAIN OF SAID TAP CONNECTIONS AND SAID ALTERNATING POTENTIAL LOAD, AND ELECTRICAL VALVES CONNECTED IN CIRCUIT RELATION WITH EACH OF SAID RECTIFIER MEANS SUCH THAT THE POLARITY OF
Claim 2
Dependent Claim
71 words
A TAP CHANGER SYSTEM COMPRISING AN ALTERNATING POTENTIAL SOURCE, AN ALTERNATING POTENTIAL LOAD, MEANS INCLUDING AN INDUCTIVE WINDING HAVING TAP CONNECTIONS THEREON CONNECTED IN CIRCUIT RELATION WITH SAID ALTERNATING POTENTIAL SOURCE AND SAID ALTERNATING POTENTIAL LOAD, RECTIFIER MEANS CONNECTED IN CIRCUIT RELATION WITH CERTAIN OF SAID TAP CONNECTIONS AND SAID ALTERNATING POTENTIAL LOAD, AND ELECTRICAL VALVES CONNECTED IN CIRCUIT RELATION WITH EACH OF SAID RECTIFIER MEANS SUCH THAT THE POLARITY OF
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |