The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
Jan. 15, 2002
Applicant:
Inventors:
C. Paul Christensen, Fairhaven, MD (US);
Sidney P. Wright, Severna Park, MD (US);
Assignee:
Potomac Photonics, Inc., Lanham, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 2/603 ;
U.S. Cl.
CPC ...
B23K 2/603 ;
Abstract
A system for laser marking a gemstone ( ) is provided. A pulsed laser ( ) generates a laser pulse ( ) which is then directed towards a focusing element ( ) through optical means ( ). Lens ( ) focuses the laser pulse into focused pulse ( ). The focused pulse ( ) is projected onto a surface of gemstone ( ) which is mounted in fixture ( ). A computer control system ( ) allows a user to input and control a predetermined path of displacement between the gemstone ( ) and the focused laser pulse ( ).