Patent US3246226A successfully refreshed from Google Patents.
US3246226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverter network
Assignee: Westinghouse Electric Corp
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Filing: 1962-08-23
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Granted: 1966-04-12
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Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Martin J Geisler
- 👤 Paul F Pittman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:47
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/516; H02M7/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN COMBINATION, AN ELECTRIC HAVING THREE ELECTRODES, A FIRST PAIR OF SAID ELECTRODES DEFINING A POWER PATH AND A SECOND PAIR OF SAID ELECTRODES DEFINING A CONTROL PATH, MEANS PROVIDING FIRST AND SECOND CONNECTIONS TO SAID CONTROL PATH, SAID CONTROL PATH BEING EFFECTIVE TO INITIATE CONDUCTION THROUGH SAID POWER PATH WHEN SAID FIRST CONNECTION IS POSITIVE WITH RESPECT TO SAID SECOND CONNECTION, AN ASYMMETRIC IMPEDANCE DEVICE HAVING A PAIR OF TERMINALS, SAID IMPEDANCE DEVICE HAVING A HIGHER IMPEDANCE TO CURRENT FLOW WHEN A FIRST OF SAID TERMINALS IS POSITIVE WITH RESPECT TO A SECOND OF SAID TERMINALS THAN WHEN THE POLARITY OF ITS SAID TERMINALS IS REVERSED, MEANS DIRECTLY COUPLING SAID FIRST TERMINAL TO SAID FIRST CONNECTION AND SAID SECOND
Claim 2
Dependent Claim
120 words
IN COMBINATION, AN ELECTRIC HAVING THREE ELECTRODES, A FIRST PAIR OF SAID ELECTRODES DEFINING A POWER PATH AND A SECOND PAIR OF SAID ELECTRODES DEFINING A CONTROL PATH, MEANS PROVIDING FIRST AND SECOND CONNECTIONS TO SAID CONTROL PATH, SAID CONTROL PATH BEING EFFECTIVE TO INITIATE CONDUCTION THROUGH SAID POWER PATH WHEN SAID FIRST CONNECTION IS POSITIVE WITH RESPECT TO SAID SECOND CONNECTION, AN ASYMMETRIC IMPEDANCE DEVICE HAVING A PAIR OF TERMINALS, SAID IMPEDANCE DEVICE HAVING A HIGHER IMPEDANCE TO CURRENT FLOW WHEN A FIRST OF SAID TERMINALS IS POSITIVE WITH RESPECT TO A SECOND OF SAID TERMINALS THAN WHEN THE POLARITY OF ITS SAID TERMINALS IS REVERSED, MEANS DIRECTLY COUPLING SAID FIRST TERMINAL TO SAID FIRST CONNECTION AND SAID SECOND
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |