Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Patent
1997-09-15
2000-03-14
Padgett, Marianne
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
427555, 427557, 427596, 125 1, B05D 300, C23C 1430, B28D 100
Patent
active
060370157
ABSTRACT:
The invention relates to a method for coloring pieces of rock, namely marble, by means of the application of a laser beam (2) in order to color-mark or totally color the piece of rock. According to the invention, the laser beam interacts with the piece of rock (5), to which an appropriate coloring is subsequently applied. Diffusion of the pigment in the piece of rock changes its color in the area affected by the laser. The piece of rock takes on the color as intensely as desired. The invention enables marble of a lower value to be made more valuable and increases the value of other rocks and allows them to be colored. This application is mainly intended for the treatment of ornamental rocks.
REFERENCES:
patent: 2375113 (1945-05-01), Klammt et al.
patent: 5410125 (1995-04-01), Winston et al.
patent: 5753887 (1998-05-01), Rosenwasser et al.
patent: 5760367 (1998-06-01), Rosenwasser et al.
Translation of Japanese reference 58-82245 to Eiichirou Takiyama et al--pub. date Aug. 9, 1983.
Translation of USSR Inventor's Certificate to Motornyi et al pub date Aug. 30, 1985.
Translation of Japanese ref. 04-270685 to Uigunaraajiya et al, pub. date Sep. 28, 1992.
dos Santo Simoes Fernando Antonio
Marques Fernandes Rabaca Jose Manuel
Pinto Coelho Joao Miguel
Padgett Marianne
Reynolds LLP Locke
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