Floor marking apparatus and system, and method of marking a...

Illumination – With static structure – Floor

Reexamination Certificate

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Details

C362S812000, C040S560000, C116S209000, C340S332000, C340S691100

Reexamination Certificate

active

11031226

ABSTRACT:
A floor marking system includes a floor having a predetermined location intended for use of a predetermined character, the predetermined location being marked with impinging light. The floor marking system also includes a lighting unit having a light source for marking light onto the floor at a predetermined location. A patterning device is disposed between the light source and the floor, and is configured and arranged to mark at least one of a graphic pattern and a color onto the floor at the predetermined location with the impinging light. The at least one of the graphic pattern and the color marked on the floor by the lighting unit and the patterning device forms an indicator, and the indicator corresponds to the character of use of the floor at the predetermined location.

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patent: 6000810 (1999-12-01), Nolan et al.
patent: 6150943 (2000-11-01), Lehman et al.
patent: 6731079 (2004-05-01), Andersen

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