Laser system for removal of graffiti

Details Laser system for removal of graffiti Laser system for removal of graffiti

1994-09-21

1997-07-01

Walberg, Teresa J.

Electric heating

Metal heating

By arc

21912176, 21912181, 21912183, B23K 2604

Patent

active

056434766

ABSTRACT:
A laser system for the removal of graffiti from a retro-reflective highway sign or other surface includes a mobile crane adapted to support a laser scanner and an ablating laser under the control of a computer. An optical sensor and target indicator cooperate to function as a target acquisition device for identifying portions of a highway sign covered with graffiti. Responsive to the target acquisition device, the computer controls the laser scanner and laser to automatically ablate the graffiti covered portions of the highway sign to remove the graffiti. If needed, any remaining graffiti is manually brushed away and the highway sign is polished to restore the retro-reflective properties.

REFERENCES:
patent: Re33777 (1991-12-01), Woodroffe
patent: 4148057 (1979-04-01), Jesse
patent: 4584455 (1986-04-01), Tomizawa
patent: 4588885 (1986-05-01), Lovoi et al.
patent: 4665377 (1987-05-01), Harpaintner
patent: 4695698 (1987-09-01), Mayor et al.
patent: 4756765 (1988-07-01), Woodroffe
patent: 4844947 (1989-07-01), Kasner et al.
patent: 4859075 (1989-08-01), Sutter, Jr. et al.
patent: 4880959 (1989-11-01), Baum et al.
patent: 4900891 (1990-02-01), Vega et al.
patent: 4986664 (1991-01-01), Lovoi
patent: 5040479 (1991-08-01), Trash
patent: 5194723 (1993-03-01), Cates et al.
patent: 5281798 (1994-01-01), Hamm et al.
Laser Removal of Graffiti by Katherine Liu and Elsa Garmire, AHMCT Research Report, Sep. 22, 1993.
Elsa Garmire and Katherine Liu, Summary of Research Effort - Laser Removal of Graffiti, Jul. 26, 1993, pp. 1-16.

Affiliated with

Also associated with

Rating

Laser system for removal of graffiti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser system for removal of graffiti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser system for removal of graffiti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-594051