| United States Patent | 6,423,162 |
| Schwartz , et al. | July 23, 2002 |
This invention relates to a method of using a laser to produce a decorative appearance on the surface of a bumper. More specifically, the present invention relates to a laser alloying method to create a decorative alloyed layer on the surface of a bumper.
| Inventors: | Schwartz; Frederick A. (Woodbury, TN); McCay; Mary Helen (Monteagle, TN); McCay; T. Dwayne (Monteagle, TN); Dahotre; Narendra B. (Tullahoma, TN); Bible; John Brice (South Pittsburg, TN); Hopkins; John A. (Tullahoma, TN) |
| Assignee: | The University of Tennesse Research Corporation (Knoxville, TN) |
| Appl. No.: | 347198 |
| Filed: | July 2, 1999 |
| Current U.S. Class: | 148/512; 148/525; 148/565; 219/121.82; 219/121.85; 427/554; 427/547 |
| Intern'l Class: | C23C 004/06 |
| Field of Search: | 148/512,525,565 219/121.82,121.85 427/554,597 |
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