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. 05, 2019
Filed:
Oct. 01, 2014
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
Jochim Koch, Ratzeburg, DE;
Carsten Stemich, Ratzeburg, DE;
Bastian Wilke, Lübeck, DE;
Christian Ulbrich, Hamburg, DE;
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Abstract
A cooling device (), for a protective respiratory apparatus (), has a housing (), a breathing bag () arranged in the housing () with an inlet () for respiratory air (A) and an outlet () for cooled respiratory air (A) and a spring plate () with a spring device () to apply a spring force to the breathing bag (). Between the housing () and at least one section of an outer side () of the breathing bag () an cooling air channel () is formed. The cooling air channel () is connected to the ambient air (U) outside the housing () in a fluid-communicating manner. A blower () is arranged for the generation of a flow of the ambient air (U) through the cooling air channel (). Furthermore a protective respiratory apparatus () having such a cooling device is provided.