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:
Aug. 05, 2025
Filed:
Oct. 25, 2023
Heidelberger Druckmaschinen Ag, Heidelberg, DE;
Bernard Beier, Ladenburg, DE;
Silas Falter, Heddesbach, DE;
Andreas Müller, Heidelberg, DE;
Klaus-Dieter Scharf, Königsfeld, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A light trap for ultraviolet radiation for curing ink on a printing substrate contains a shaped body with more than two shape elements succeeding one another. The shaped body has a side facing the printing substrate and embodied to have step elements in a stepped arrangement as shape elements. Every step element contains a pair formed of a step surface and a riser, the step surfaces and the risers having different inclinations relative to the direction of transport. The step surfaces have a step length L and the riser has a step height H, and is characterized in that the following applies: L>2H. This provides an improved UV screen by use of the light trap while simultaneously simplifying the process of cleaning the light trap. This is preferably used in the process of printing and curing UV inks.