Patent · US Active

Cooling device for a protective respiratory apparatus

US10463893B2 · kind B2 · utility

0Cited by

10References

19Claims

0Family size

Assignee

DRÄGER SAFETY AG & CO. KGAA · DE

Inventors

Jochim Koch · Ratzeburg, DE
Carsten Stemich · Düchelsdorf, DE
Bastian Wilke · Kassel, DE
Christian Ulbrich · Hersbruck, DE

Key dates

Filing date	Oct 1, 2014
Grant date	Nov 5, 2019
Priority date	—
Expiry date	Dec 5, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B7/02
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A cooling device (10), for a protective respiratory apparatus (100), has a housing (20), a breathing bag (30) arranged in the housing (20) with an inlet (32) for respiratory air (A) and an outlet (34) for cooled respiratory air (A) and a spring plate (40) with a spring device (42) to apply a spring force to the breathing bag (30). Between the housing (20) and at least one section of an outer side (36) of the breathing bag (30) an cooling air channel (50) is formed. The cooling air channel (50) is connected to the ambient air (U) outside the housing (20) in a fluid-communicating manner. A blower (52) is arranged for the generation of a flow of the ambient air (U) through the cooling air channel (50). Furthermore a protective respiratory apparatus (100) having such a cooling device is provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.