The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1991
Filed:
Sep. 13, 1989
Applicant:
Inventor:
Laurent Sutour, Victor Hugo Hauts De Seine, FR;
Assignee:
Societe Anonyme de Telecommunications, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01C / ;
U.S. Cl.
CPC ...
356152 ; 244 1717 ; 340946 ; 356-4 ;
Abstract
The aircraft (1) incorporates means for emitting a conical light beam (14). The vessel (2) incorporates photosensitive cells (6) materializing the outline of the beam on the vessel, which is an ellipse (7). Means determine the equation of the ellipse (17) and, from this, landing data which are displayed on a panel (25).