Patent US3175184A successfully refreshed from Google Patents.
US3175184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static logic power control
Assignee: Individual
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Filing: 1961-08-28
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Granted: 1965-03-23
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Balakrishna R Shelar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:53
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A STATIC COMMUTATOR FOR SEQUENTIALLY ENERGIZING A LOAD CIRCUIT COMPRISING: A FIRST SATURABLE CORE TRANSFORMER HAVING AN INPUT CONNECTION AND AN OUTPUT CONNECTION, A SOURCE OF PULSES HAVING AN OUTPUT COUPLED TO THE INPUT OF SAID SATURABLE CORE TRANSFORMER TO UNSATURATE SAID CORE FOR THE DURATION OF SAID PULSES, AN ALTERNATING CURRENT SOURCE, RECTIFIER MEANS COUPLED TO SAID ALTERNATING CURRENT SOURCE AND TO THE OUTPUT CIRCUIT OF SAID SATURABLE CORE TRANSFORMER, SAID RECTIFIER MEANS SUPPLYING A DIRECT CURRENT OUTPUT DURING THE SATURATED PERIODS OF SAID TRANSFORMER, A SECOND SATURATBLE CORE TRANSFORMER HAVING AN INPUT CONNECTION AND AN OUTPUT CONNECTION, SAID INPUT CONNECTION COUPLED TO SAID DIRECT CURRENT OUTPUT TO UNSATURATE SAID SECOND CORE FOR THE DURATION OF SAID CURRENT, ALTERNATING CURRENT GATING MEANS CONNECTED TO SAID SECOND TRANSFORMER OUTPUT CONNECTIONS, SAID GATING MEANS BEING OPERATED TO A CONDUCTIVE STATE BY THE SATURATION OF SAID SECOND TRANSFORMER, AND LOAD MEANS CONNECTED TO SAID GATING MEANS AND SAID ALTERNATING CURRENT SOURCE TO BE CONTROLLED IN RESPONSE TO THE CHANGES IN THE STATES OF CONDUCTION THEREOF.
Claim 2
Dependent Claim
173 words
A STATIC COMMUTATOR FOR SEQUENTIALLY ENERGIZING A LOAD CIRCUIT COMPRISING: A FIRST SATURABLE CORE TRANSFORMER HAVING AN INPUT CONNECTION AND AN OUTPUT CONNECTION, A SOURCE OF PULSES HAVING AN OUTPUT COUPLED TO THE INPUT OF SAID SATURABLE CORE TRANSFORMER TO UNSATURATE SAID CORE FOR THE DURATION OF SAID PULSES, AN ALTERNATING CURRENT SOURCE, RECTIFIER MEANS COUPLED TO SAID ALTERNATING CURRENT SOURCE AND TO THE OUTPUT CIRCUIT OF SAID SATURABLE CORE TRANSFORMER, SAID RECTIFIER MEANS SUPPLYING A DIRECT CURRENT OUTPUT DURING THE SATURATED PERIODS OF SAID TRANSFORMER, A SECOND SATURATBLE CORE TRANSFORMER HAVING AN INPUT CONNECTION AND AN OUTPUT CONNECTION, SAID INPUT CONNECTION COUPLED TO SAID DIRECT CURRENT OUTPUT TO UNSATURATE SAID SECOND CORE FOR THE DURATION OF SAID CURRENT, ALTERNATING CURRENT GATING MEANS CONNECTED TO SAID SECOND TRANSFORMER OUTPUT CONNECTIONS, SAID GATING MEANS BEING OPERATED TO A CONDUCTIVE STATE BY THE SATURATION OF SAID SECOND TRANSFORMER, AND LOAD MEANS CONNECTED TO SAID GATING MEANS AND SAID ALTERNATING CURRENT SOURCE TO BE CONTROLLED IN RESPONSE TO THE CHANGES IN THE STATES OF CONDUCTION THEREOF.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |