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US3135910A Expired / Lapsed US ⏱️ 0.0 years remaining

Constant current rectifier power supply system

Assignee: AT&T Inc
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Filing: 1959-11-17
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Granted: 1964-06-02
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Expires: 1979-11-17
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Abstract

No abstract record available.

Inventors

  • 👤 Billy H Hamilton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 20:08
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/33

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 225 words
A CONSTANT CURRENT RECTIFIER POWER SUPPLY SYSTEM COMPRISING AN ALTERNATING-CURRENT SOURCE, A PLURALITY OF REGULATOR-RECTIFIERS, EACH OF SAID REGULATOR-RECTIFIERS COMPRISING A TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS, A REFERENCE CURRENT SOURCE, A RECTIFIER BRIDGE HAVING AN INPUT AND AN OUTPUT, AND A SATURABLE REACTOR HAVING REFERENCE, MAIN AND CONTROL WINDINGS, MEANS FOR CONNECTING THE REFERENCE CURRENT SOURCE IN EACH OF SAID PLURALITY OF REGULATOR-RECTIFIERS TO ITS CORRESPONDING REFERENCE WINDINGS, MEANS FOR SERIALLY CONNECTING THE MAIN WINDINGS OF SAID SATURABLE REACTOR IN EACH OF SAID REGULATOR RECTIFIERS, THE CORRESPONDING PRIMARY WINDING OF SAID TRANSFORMER AND SAID ALTERNATING-CURRENT SOURCE, MEANS FOR CONNECTING THE SECONDARY WINDING OF SAID TRANSFORMER IN EACH OF SAID REGULATOR-RECTIFIERS TO THE INPUT OF ITS CORRESPONDING RECTIFIER BRIDGE, A PLURALITY OF ASYMMETRICALLY CONDUCTING DEVICES, MEANS FOR CONNECTING AN INDIVIDUAL ONE OF SAID ASYMMETRICALLY CONDUCTING DEVICES ACROSS THE OUTPUT TERMINALS OF EACH OF SAID RECTIFIER BRIDGES, A LOAD, MEANS FOR SERIALLY CONNECTING SAID ASYMMETRICALLY CONDUCTING DEVICES AND SAID LOAD, INDIVIDUAL DETECTING MEANS ASSOCIATED WITH EACH OF SAID REGULATOR-RECTIFIERS SAID DETECTING MEANS BEING RESPONSIVE TO LOAD VOLTAGE IN EXCESS OF A PREDETERMINED VALUE TO PROVIDE AN OUTPUT SIGNAL SUITABLE FOR SATURABLE REACTOR CONTROL, MEANS CONNECTING SAID DETECTING MEANS TO SAID SATURABLE REACTOR CONTROL WINDINGS TO TRANSMIT SAID OUTPUT SIGNAL THERETO AND THEREBY REDUCE THE CURRENT IN SAID MAIN SATURABLE REACTOR WINDINGS TO A RELATIVELY NEGLIGIBLE VALUE.
Claim 2
Dependent Claim 225 words
A CONSTANT CURRENT RECTIFIER POWER SUPPLY SYSTEM COMPRISING AN ALTERNATING-CURRENT SOURCE, A PLURALITY OF REGULATOR-RECTIFIERS, EACH OF SAID REGULATOR-RECTIFIERS COMPRISING A TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS, A REFERENCE CURRENT SOURCE, A RECTIFIER BRIDGE HAVING AN INPUT AND AN OUTPUT, AND A SATURABLE REACTOR HAVING REFERENCE, MAIN AND CONTROL WINDINGS, MEANS FOR CONNECTING THE REFERENCE CURRENT SOURCE IN EACH OF SAID PLURALITY OF REGULATOR-RECTIFIERS TO ITS CORRESPONDING REFERENCE WINDINGS, MEANS FOR SERIALLY CONNECTING THE MAIN WINDINGS OF SAID SATURABLE REACTOR IN EACH OF SAID REGULATOR RECTIFIERS, THE CORRESPONDING PRIMARY WINDING OF SAID TRANSFORMER AND SAID ALTERNATING-CURRENT SOURCE, MEANS FOR CONNECTING THE SECONDARY WINDING OF SAID TRANSFORMER IN EACH OF SAID REGULATOR-RECTIFIERS TO THE INPUT OF ITS CORRESPONDING RECTIFIER BRIDGE, A PLURALITY OF ASYMMETRICALLY CONDUCTING DEVICES, MEANS FOR CONNECTING AN INDIVIDUAL ONE OF SAID ASYMMETRICALLY CONDUCTING DEVICES ACROSS THE OUTPUT TERMINALS OF EACH OF SAID RECTIFIER BRIDGES, A LOAD, MEANS FOR SERIALLY CONNECTING SAID ASYMMETRICALLY CONDUCTING DEVICES AND SAID LOAD, INDIVIDUAL DETECTING MEANS ASSOCIATED WITH EACH OF SAID REGULATOR-RECTIFIERS SAID DETECTING MEANS BEING RESPONSIVE TO LOAD VOLTAGE IN EXCESS OF A PREDETERMINED VALUE TO PROVIDE AN OUTPUT SIGNAL SUITABLE FOR SATURABLE REACTOR CONTROL, MEANS CONNECTING SAID DETECTING MEANS TO SAID SATURABLE REACTOR CONTROL WINDINGS TO TRANSMIT SAID OUTPUT SIGNAL THERETO AND THEREBY REDUCE THE CURRENT IN SAID MAIN SATURABLE REACTOR WINDINGS TO A RELATIVELY NEGLIGIBLE VALUE.

References Cited (Backward Citations)

FR1072238A Cited
US2743152A Cited
US2817055A Cited
DE1007861B Cited
US2945172A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-06-02 1967-12-02 1968-06-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-06-02 1971-12-02 1972-06-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-06-02 1975-12-02 1976-06-02 $7700.00 Window Closed / Lapsed

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