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US3230401A Expired / Lapsed US ⏱️ 0.0 years remaining

Duty cycle circuit

Assignee: Woodward Controls Inc
•
Filing: 1962-05-29
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Granted: 1966-01-18
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Expires: 1982-05-29
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Abstract

No abstract record available.

Inventors

  • 👤 William L Stelter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:32
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 139 words
AN ELECTRO-MECHANICAL ARRANGEMENT FOR CYCLICALLY ENERGIZING AND DE-ENERGIZING RESPONSIVE MEANS COMPRISING; ELECTRICAL CIRCUITRY HAVING A SOURCE OF POWER AND INCLUDING OPERATOR CIRCUIT MEANS AND CONTROL CIRCUIT MEANS, ENERGIZATION MEANS IN SAID OPERATOR CIRCUIT MEANS FOR ENERGIZING AND DE-ENERGIZING SAID RESPONSIVE MEANS AS A FUNCTION OF THE CLOSING AND OPENING OF SAID OPERATOR CIRCUIT MEANS, ACTUATOR MEANS IN SAID CONTROL CIRCUIT MEANS FOR OPENING AND CLOSING SAID OPERATOR CIRCUIT MEANS, AND TIMER MEANS ASSOCIATED WITH SAID CONTROL CIRCUIT MEANS FOR CONTROLLING THE OPERATION OF SAID ACTUATOR MEANS TO SEQUENTIALLY OPEN AND CLOSE SAID OPERATOR CIRCUIT MEANS ACCORDING TO A PREDETERMINED SCHEDULE, SAID TIMER MEANS INCLUDING AN OPERATOR CIRCUIT OPEN PERIOD TIMER AND AN OPERATOR CIRCUIT CLOSED PERIOD TIMER, SAID TIMERS BEING ALTERNATIVELY OPERABLE TO CONTROL THE LENGTHS OF THE RESPONSIVE MEANS DE-ENERGIZING PERIOD AND A RESPONSIVE MEANS ENERGIZING PERIOD, RESPECTIVELY.
Claim 2
Dependent Claim 139 words
AN ELECTRO-MECHANICAL ARRANGEMENT FOR CYCLICALLY ENERGIZING AND DE-ENERGIZING RESPONSIVE MEANS COMPRISING; ELECTRICAL CIRCUITRY HAVING A SOURCE OF POWER AND INCLUDING OPERATOR CIRCUIT MEANS AND CONTROL CIRCUIT MEANS, ENERGIZATION MEANS IN SAID OPERATOR CIRCUIT MEANS FOR ENERGIZING AND DE-ENERGIZING SAID RESPONSIVE MEANS AS A FUNCTION OF THE CLOSING AND OPENING OF SAID OPERATOR CIRCUIT MEANS, ACTUATOR MEANS IN SAID CONTROL CIRCUIT MEANS FOR OPENING AND CLOSING SAID OPERATOR CIRCUIT MEANS, AND TIMER MEANS ASSOCIATED WITH SAID CONTROL CIRCUIT MEANS FOR CONTROLLING THE OPERATION OF SAID ACTUATOR MEANS TO SEQUENTIALLY OPEN AND CLOSE SAID OPERATOR CIRCUIT MEANS ACCORDING TO A PREDETERMINED SCHEDULE, SAID TIMER MEANS INCLUDING AN OPERATOR CIRCUIT OPEN PERIOD TIMER AND AN OPERATOR CIRCUIT CLOSED PERIOD TIMER, SAID TIMERS BEING ALTERNATIVELY OPERABLE TO CONTROL THE LENGTHS OF THE RESPONSIVE MEANS DE-ENERGIZING PERIOD AND A RESPONSIVE MEANS ENERGIZING PERIOD, RESPECTIVELY.

References Cited (Backward Citations)

US2462066A Cited
US2817806A Cited
US2892105A Cited
US3047725A Cited
US3076098A Cited
US3056051A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-17 1969-07-19 1970-01-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-17 1973-07-19 1974-01-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-17 1977-07-19 1978-01-18 $7700.00 Window Closed / Lapsed

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