Patent US2451021A successfully refreshed from Google Patents.
Patent US3090828A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3226058A Expired / Lapsed US ⏱️ 0.0 years remaining

Double map navigational control system for aircraft

Assignee: Individual
•
Filing: 1951-06-30
•
Granted: 1965-12-28
•
Expires: 1971-06-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Carl A Meneley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 01:33
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/005

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 127 words
AUTOMATIC TERRAIN RECOGNITION AND NAVIGATION APPARATUS FOR AN AIRCRAFT BODY OR THE LIKE INCLUDING MEANS FOR PRODUCING SUBSTANTIALLY CONTINUOUSLY A PAIR OF IMAGES OF THE TERRAIN OVER WHICH THE BODY IS PASSING, A PREVIOUSLY PREPARED NEGATIVE MAP TRANSPARENCY OF THE TERRAIN, A PREVIOUSLY PREPARED POSITIVE MAP TRANSPARENCY OF THE TERRAIN AND SEPARATELY POSITIONED FROM THE NEGATIVE MAP TRANSPARENCY, MEANS FOR SUPERIMPOSING ONE IMAGE OVER THE NEGATIVE MAP TRANSPARENCY AND ONE IMAGE OVER THE POSITIVE MAP TRANSPARENCY, THE IMAGE AND THE TRANSPARENCY AS SUPERIMPOSED HAVING SUBSTANTIALLY THE SAME SCALE AND ORIENTATION, MEANS FOR EFFECTING A SCANNING MOVEMENT BETWEEN EACH TRANSPARENCY AND ITS IMAGE, MEANS RESPONSIVE TO SUBSTANTIALLY A MATCH BETWEEN EACH TRANSPARENCY AND ITS IMAGE, AND MEANS FOR EFFECTING RELATIVE REPOSITIONING MOVEMENT BETWEEN EACH TRANSPARENCY AND ITS IMAGE.
Claim 2
Dependent Claim 127 words
AUTOMATIC TERRAIN RECOGNITION AND NAVIGATION APPARATUS FOR AN AIRCRAFT BODY OR THE LIKE INCLUDING MEANS FOR PRODUCING SUBSTANTIALLY CONTINUOUSLY A PAIR OF IMAGES OF THE TERRAIN OVER WHICH THE BODY IS PASSING, A PREVIOUSLY PREPARED NEGATIVE MAP TRANSPARENCY OF THE TERRAIN, A PREVIOUSLY PREPARED POSITIVE MAP TRANSPARENCY OF THE TERRAIN AND SEPARATELY POSITIONED FROM THE NEGATIVE MAP TRANSPARENCY, MEANS FOR SUPERIMPOSING ONE IMAGE OVER THE NEGATIVE MAP TRANSPARENCY AND ONE IMAGE OVER THE POSITIVE MAP TRANSPARENCY, THE IMAGE AND THE TRANSPARENCY AS SUPERIMPOSED HAVING SUBSTANTIALLY THE SAME SCALE AND ORIENTATION, MEANS FOR EFFECTING A SCANNING MOVEMENT BETWEEN EACH TRANSPARENCY AND ITS IMAGE, MEANS RESPONSIVE TO SUBSTANTIALLY A MATCH BETWEEN EACH TRANSPARENCY AND ITS IMAGE, AND MEANS FOR EFFECTING RELATIVE REPOSITIONING MOVEMENT BETWEEN EACH TRANSPARENCY AND ITS IMAGE.

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) 1968-12-27 1969-06-28 1969-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-27 1973-06-28 1973-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-27 1977-06-28 1977-12-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag