Method for etching characters on bullets and bullets made by the method
US6209459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B35/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of marking bullets and bullets marked by the method are described. In one embodiment, the method comprises coating the bullet of a cartridge with at least one coating material whose surface appearance contrasts with the surface appearance of the underlying bullet material. Characters are then selectively etched in, and generally substantially through, the coating, such as molybdenum disulfide. The characters are easily and quickly recognized because of the contrast between the surface appearances of the coating and that of the underlying material. The characters typically, but not necessarily, indicate characteristics of the bullet, such as bullet weight and design features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.