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:
Dec. 28, 2021
Filed:
Jul. 20, 2016
Hach Lange Gmbh, Berlin, DE;
Michael Kussman, Dusseldorf, DE;
Aurelia Stellmach, Wulfrath, DE;
Markus Hahn, Kempen, DE;
Markus Lenhard, Viersen, DE;
Sebastian Minke, Krefeld, DE;
Andreas Jonak, Meerbusch, DE;
Volker Baar, Kaarst, DE;
Heinz Rudde, Huckelhoven, DE;
HACH LANGE GMBH, Berlin, DE;
Abstract
The invention refers to an optical measurement apparatus () with an optical device () and a liquid sample vessel () for measuring an optical parameter of a liquid sample () in the liquid sample vessel (), comprising a drying circuit circulating drying air for venting the sample vessel (), wherein the drying circuit comprises a mechanical water stop means () in the course of the drying circuit, the water stop means () comprising a conduit body () with a water-absorbing swelling element () arranged within the conduit body (). The water stop means is simple and inexpensive and reliably protects all elements downstream of the water stop means from a water ingress upstream of the water stop means.