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. 29, 2025
Filed:
Jul. 06, 2021
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
DRÄGER SAFETY AG & CO. KGAA, Lübeck, DE;
Abstract
A carbon dioxide absorber () and a closed-circuit breathing apparatus () with the carbon dioxide absorber are based on the carbon dioxide absorber having an inlet () and an outlet () gas-tight connectable by a flow duct (), in which a material () is arranged, which absorbs some carbon dioxide contained in the breathing gas stream sent through the material. The flow duct () is enclosed in some areas by a housing (), in which a window element () is arranged. A display element () arranged movably in the flow duct () is visible through the window element from outside of the housing and/or through which window element the radiation reflected by the display element () exits to the outside. A distance between the window element () and the display element () varies as a function of the quantity of carbon dioxide-absorbing material arranged in the flow duct ().