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:
Apr. 27, 2010
Filed:
Jun. 13, 2008
Applicants:
Gerhard Hammann, Korntal-Muechingen, DE;
Dieter Hallasch, Ditzingen, DE;
Juergen Hohenadel, Schwieberdingen, DE;
Inventors:
Gerhard Hammann, Korntal-Muechingen, DE;
Dieter Hallasch, Ditzingen, DE;
Juergen Hohenadel, Schwieberdingen, DE;
Assignee:
TRUMPF Werkzeugmaschinen GmbH + Co. KG, Ditzingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A condition or detecting a change in the condition of an optical element of a laser arrangement is detected. An ultrasonic signal is coupled into an optical element such that the ultrasonic signal travels along a path within the optical element, and a transit time or a change in transit time for the ultrasonic signal to travel along the path within the optical element is detected.