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US3127548A Expired / Lapsed US ⏱️ 0.0 years remaining

Three phase controller using sequence switching

Assignee: AUTOMATION DEVELOPMENT Corp
•
Filing: 1962-03-26
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Granted: 1964-03-31
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Expires: 1982-03-26
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Abstract

No abstract record available.

Inventors

  • 👤 Bernard Van Emden

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:34
CPC Classifications
H; H02; H02P; H02P8/00; H02P8/14; H02P8/20

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 216 words
A THREE PHASE CONTROL CIRCUIT FOR SEQUENTIALLY ENERGIZING FIRST, SECOND, AND THIRD CIRCUIT TERMINALS IN A FORWARD DIRECTION IN RESPONSE TO A SERIES OF CLOCKWISE PULSES AND IN A REVERSE DIRECTION IN RESPONSE TO A SERIES OF COUNTERCLOCKWISE PULSES, SAID CONTROL CIRCUIT INCLUDING: (A) FIRST, SECOND, AND THIRD SOLID STATE SWITCH MEANS HAVING INPUT, OUTPUT, AND CONTROL TERMINALS RESPECTIVELY; (B) A D.-C. SOURCE OF ELECTRICAL ENERGY CONNECTED TO SAID INPUT TERMINALS, SAID OUTPUT TERMINALS CONNECTING RESPECTIVELY TO SAID FIRST, SECOND, AND THIRD CIRCUIT TERMINALS TO ENERGIZE THE SAME WHEN THE CORRESPONDING SOLID STATE SWITCH MEANS IS CAUSED TO CONDUCT; (C) INTERCONNECTING MEANS BETWEEN SAID SOLID STATE SWITCH MEANS RESPONSIVE TO CONDUCTION OF ANY ONE OF SAID SOLID STATE SWITCH MEANS TO RENDER THE OTHER TWO OF SAID SOLID STATE SWITCH MEANS NON-CONDUCTING SO THAT ONLY ONE OF SAID SOLID STATE SWITCH MEANS CONDUCTS AT ANY ONE TIME; AND, (D) LOGIC MEANS CONNECTED TO SAID CONTROL TERMINALS OF SAID SOLID STATE SWITCH MEANS TO PASS TRIGGER PULSES THERETO IN A SEQUENTIAL FORWARD DIRECTION IN RESPONSE TO SAID SERIES OF CLOCKWISE PULSES AND IN A SEQUENTIAL REVERSE DIRECTION IN RESPONSE TO SAID SERIES OF COUNTERCLOCKWISE PULSES, ANY ONE SOLID STATE SWITCH BEING CAUSED TO CONDUCT IN RESPONSE TO RECEPTION OF A TRIGGER PULSE PASSED TO ITS CONTROL TERMINAL.
Claim 2
Dependent Claim 216 words
A THREE PHASE CONTROL CIRCUIT FOR SEQUENTIALLY ENERGIZING FIRST, SECOND, AND THIRD CIRCUIT TERMINALS IN A FORWARD DIRECTION IN RESPONSE TO A SERIES OF CLOCKWISE PULSES AND IN A REVERSE DIRECTION IN RESPONSE TO A SERIES OF COUNTERCLOCKWISE PULSES, SAID CONTROL CIRCUIT INCLUDING: (A) FIRST, SECOND, AND THIRD SOLID STATE SWITCH MEANS HAVING INPUT, OUTPUT, AND CONTROL TERMINALS RESPECTIVELY; (B) A D.-C. SOURCE OF ELECTRICAL ENERGY CONNECTED TO SAID INPUT TERMINALS, SAID OUTPUT TERMINALS CONNECTING RESPECTIVELY TO SAID FIRST, SECOND, AND THIRD CIRCUIT TERMINALS TO ENERGIZE THE SAME WHEN THE CORRESPONDING SOLID STATE SWITCH MEANS IS CAUSED TO CONDUCT; (C) INTERCONNECTING MEANS BETWEEN SAID SOLID STATE SWITCH MEANS RESPONSIVE TO CONDUCTION OF ANY ONE OF SAID SOLID STATE SWITCH MEANS TO RENDER THE OTHER TWO OF SAID SOLID STATE SWITCH MEANS NON-CONDUCTING SO THAT ONLY ONE OF SAID SOLID STATE SWITCH MEANS CONDUCTS AT ANY ONE TIME; AND, (D) LOGIC MEANS CONNECTED TO SAID CONTROL TERMINALS OF SAID SOLID STATE SWITCH MEANS TO PASS TRIGGER PULSES THERETO IN A SEQUENTIAL FORWARD DIRECTION IN RESPONSE TO SAID SERIES OF CLOCKWISE PULSES AND IN A SEQUENTIAL REVERSE DIRECTION IN RESPONSE TO SAID SERIES OF COUNTERCLOCKWISE PULSES, ANY ONE SOLID STATE SWITCH BEING CAUSED TO CONDUCT IN RESPONSE TO RECEPTION OF A TRIGGER PULSE PASSED TO ITS CONTROL TERMINAL.

References Cited (Backward Citations)

US2706270A Cited
US2790124A Cited
US2922095A Cited
US2953735A Cited
US3042847A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-03-31 1967-09-30 1968-03-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-03-31 1971-09-30 1972-03-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-03-31 1975-09-30 1976-03-31 $7700.00 Window Closed / Lapsed

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