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US3588477A Expired / Lapsed US ⏱️ 0.0 years remaining

Actual slope computer

Assignee: Thales SA
•
Filing: 1968-04-30
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Granted: 1971-06-28
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Expires: 1988-04-30
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Abstract

Abstract AN ACTUAL SLOPE COMPUTING SYSTEM FOR INDICATING, AT ANY MOMENT, ON BOARD AN AIRCRAFT, THE DEVIATION BETWEEN THE ACTUAL FLIGHT PATH OF THE AIRCRAFT AND A PRESELECTED NONHORIZONTAL NONLINEAR PATH INCLUDING A FIRST LINEAR PRESELECTED PATH AND A LAST LINEAR PRESELECTED PATH, SAID SYSTEM COMPRISING A COMPUTING UNIT FOR COMPUTING AT ANY MOMENT THE VALUE OF THE ALTITUDE H NECESSARY FOR SAID AIRCRAFT TO FOLLOW A NONHORIZONTAL LINEAR PATH, AS A FUNCTION OF GIVEN PARAMETERS OF SAID FIRST PATH, AND A MEMORY AND LOGIC CIRCUITS FOR FEEDING TO SAID COMPUTING UNIT, AT MOMENTS DETERMINED AS A FUNCTION OF THE POSITION OF SAID AIRCRAFT, SUCCESSIVELY THE PARAMETERS OF SAID FIRST PATH, OF SUCCESSIVE PROGRAMMED LINEAR PORTIONS OF SAID PRESELECTED PATH, AND OF SAID LAST PATH, SAID PROGRAMMED LINEAR PORTIONS BEING PROGRAMMED FOR INSURING A PROGRESSIVE MERGER OF THIS FIRST PATH SAID LAST PATH.

Inventors

  • 👤 Rene Lami
  • 👤 Georges Colombet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 09:31
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/78; G01; G01S; G01S1/00; G01S1/02; G01S13/00; G01S13/88; G01S13/91; G01S13/913; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0653; G05D1/0676

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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