Signal device

Details Signal device Signal device

Category

G - Physics

Subcategory

01

Subsubcategory

N

CPC

150/26, 116/66

IPC codes

G01N 21/78 (2006.01) G01N 21/91 (2006.01) G09F 9/00 (2006.01)

Type

Patent

Patent number

CA 2030603

Description

ABSTRACT OF THE DISCLOSURE A signal device consisiting of first and second inks applied to a surface. The first ink is sensitive to either light or air. The second ink is stable in the presence of light and/or air. The surface having first and second areas, wherein the second ink is applied in word or character form to said first area to form a signal word. The first ink is applied to the second area and is of a color so as to cooperate with the second ink to camouflage the signal word. A protective shield blocks the sensitive ink from exposure to light and/or air, wherein after a metered period of time of exposure to light or air the sensitive ink fades such that the contrast in color between the faded sensitive ink and the stable ink reveals the signal word.

Affiliated with

Also associated with

Rating

Signal device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1586878