← Back to Patent Explorer
US3718293A Expired / Lapsed US ⏱️ 0.0 years remaining

Dynamic lead guidance system for homing navigation

Assignee: United States Department of the Army
•
Filing: 1971-01-04
•
Granted: 1973-02-27
•
Expires: 1991-01-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A SYSTEM AND METHOD OF GUIDING HOMING MISSILES TOWARD LOW MANEUVERABILITY TARGETS. DYNAMIC LEAD NAVIGATION IS IMPLEMENTED WITH A BODY FIXED DETECTOR AND A TWODEGREE-OF-FREEDOM POSITION GYROSCOPE. THE POSITION GYRO CAN BE A PART OF THE NORMAL MISSILE AUTOPILOT AND NEED NOT REPRESENT AN ADDITIONAL INSTRUMENT. IN FLIGHT TOWARD A TARGET, A TARGET SEEKER, WHICH YIELDS A PROPORTIONAL OUTPUT, MEASURES THE ANGLE BETWEEN THE MISSILE-TARGET LINE-OFSIGHT AND THE MISSILE CENTER LINE. AN INSTRUMENT GYRO ALLOWS AN ATTITUDE ANGLE TO BE MEASURED. THE DIFFERENCE BETWEEN THESE TWO ANGLES IS OBTAINED, PROVIDING THE MISSILE-TARGET LOOK-ANGLE OR ERROR SIGNAL FOR DIRECTING THE MISSILE TOWARD THE TARGET.

Inventors

  • 👤 G Willems
  • 👤 R Farmer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:01
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-02-27 1976-08-28 1977-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-27 1980-08-28 1981-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-27 1984-08-28 1985-02-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag