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:
Jan. 11, 2005
Filed:
Apr. 17, 2002
Hans-ulrich Zuehlke, Jena, DE;
Gabriele Eberhardt, Jena, DE;
Norbert Preuss, Jena, DE;
Martin Griebel, Jena, DE;
Juergen Weisser, Jena, DE;
Hans-Ulrich Zuehlke, Jena, DE;
Gabriele Eberhardt, Jena, DE;
Norbert Preuss, Jena, DE;
Martin Griebel, Jena, DE;
Juergen Weisser, Jena, DE;
JENOPTIK Automatisierungstechnik GmbH, Jena, DE;
Abstract
A device for welding a plurality of thermoplastic plastic parts (parts to be joined) forming a hollow body with an opening by a laser, comprising a vacuum holder having a vacuum chamber which communicates with a vacuum pump, is open on one side and, together with the hollow body, forms a closed chamber that can be evacuated. When a vacuum is applied, the vacuum holder holds the hollow body stationary, holds the joined parts together and enables testing of the tightness of the weld.