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:
Sep. 23, 2003
Filed:
Aug. 10, 2001
Michael Von Borstel, Pleidelsheim, DE;
Trumpf Lasertechnik GmbH, , DE;
Abstract
A laser processing machine incorporates a gas flushed beam guiding chamber ( ) and an optical element ( ) bounding the beam guiding chamber ( ) on the beam input side serves the optical element to direct the laser beam ( ) into the beam-guiding chamber ( ), and a flushing gas intake opening ( ) is provided in the beam-guiding chamber ( ) near the optical element ( ). An optical diaphragm aperture ( ) is provided in the beam guiding chamber ( ) for shaping the laser beam ( ) and it is designed to also serve as a restrictor for the flushing gas. The diaphragm subdivides the beam guiding chamber, and, since only the part of the beam guiding chamber between the optical element and the diaphragm is subject to positive pressure, the amount of flushing gas needed for flushing is reduced.