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:
Nov. 03, 2026
Filed:
Jul. 11, 2023
Hach Lange Gmbh, Berlin, DE;
Andreas Golitz, Berlin, DE;
Manfred Battefeld, Berlin, DE;
Bas De Heij, Berlin, DE;
Maik Heuwold, Berlin, DE;
Sebastian Minke, Berlin, DE;
HACH LANGE GMBH, Berlin, DE;
Abstract
A process water analyzer for automatically analyzing a water sample, including a process liquid reservoir tank with a process liquid defining a reservoir liquid level at a reservoir liquid level height, a dosage chamber fluidically connected to and positioned downstream of the process liquid reservoir tank, and a positive displacement dosage pump for sucking process liquid into the dosage chamber, whereas an air cushion is always provided vertically between the dosage pump and the dosage chamber liquid level so that a liquid column with an effective vertical liquid column length exists between the reservoir liquid level and the dosage chamber liquid level, whereas the dosage pump sucks a pressure-adapted gas volume of the air cushion, and whereas a process liquid dosage control unit provides the value of the pressure-adapted pumped gas volume dependent on the air cushion pressure effected by the effective vertical liquid column length.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile