Two sided marker
First Claim
Patent Images
1. A marker for resting on a support surface in a predetermined attitude comprising a pair of substantially planar metal panels facing approximately away from each other in azimuthal directions, and each sloping upwardly toward the other at an angle between 2°
- and 6°
to the vertical in such attitude, and retroreflectant material covering a substantial area of each of said panels, wherein at least one fluorescent stripe is located on each of said panels which stripe is horizontal in said predetermined attitude, said stripe having a color contrasting with that of said substantial area.
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Abstract
The marker has a pair of upwardly converging reflectant planar panels facing approximately in opposite directions. In its correct attitude on a support surface the panels slope at 2°-6° to the vertical if the marker is intended for assisting the landing of fixed wing aircraft and at 8°-10° to the vertical if the marker is intended for assisting the landing of helicopters. The reflectant panels are preferably retroreflectant.
16 Citations
9 Claims
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1. A marker for resting on a support surface in a predetermined attitude comprising a pair of substantially planar metal panels facing approximately away from each other in azimuthal directions, and each sloping upwardly toward the other at an angle between 2°
- and 6°
to the vertical in such attitude, and retroreflectant material covering a substantial area of each of said panels, wherein at least one fluorescent stripe is located on each of said panels which stripe is horizontal in said predetermined attitude, said stripe having a color contrasting with that of said substantial area. - View Dependent Claims (2, 3, 4, 5)
- and 6°
-
6. A marker for resting on a support surface in a predetermined attitude comprising a pair of metal panels facing approximately away from each other in aximuthal directions, and each sloping upwardly toward the other at an angle of between 8°
- and 10°
to the vertical in such attitude, and retroreflectant material covering a substantial area of each of said panels, wherein at least one fluorescent stripe is located on each of said panels which stripe is horizontal in said predetermined attitude, said stripe having a color contrasting with that of said substantial area. - View Dependent Claims (7, 8, 9)
- and 10°
Specification