Breathing apparatus
First Claim
1. In a breathing apparatus for a person including means for processing breathing air and housing means for enclosing said processing means until required for use, wherein the improvement comprises:
- said means for processing the breathing air including;
a container having first and second breathing air pass-through openings;
breathing conduit means connected to said first opening for use by the person when breathing with the apparatus;
chemical means disposed in said container for processing the breathing air;
stopper means for closing said second opening until said container is required for use; and
,moisture-sensitive means held in said stopper means in gas contact with said chemical means for visually indicating the presence of moisture in said container; and
,window means for permitting viewing of said moisture-sensitive means from outside of said housing means.
1 Assignment
0 Petitions
Accused Products
Abstract
A breathing apparatus removably mounted in a housing has a device for processing the breathing gas. This device includes a container and a charge for processing the breathing air which is disposed in the container. The container has air pass-through openings at least one of which is closable with a stopper. The breathing apparatus provides an indication of possible entry of water vapor and this indication is limited to only the water-vapor sensitive parts of the breathing apparatus. For this purpose, a charge is provided in the stopper having a moisture-sensitive indicator which is visible through a viewing window from outside the housing and this charge is in gas contact with the charge of the device for processing the breathing gas.
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Citations
5 Claims
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1. In a breathing apparatus for a person including means for processing breathing air and housing means for enclosing said processing means until required for use, wherein the improvement comprises:
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said means for processing the breathing air including;
a container having first and second breathing air pass-through openings;
breathing conduit means connected to said first opening for use by the person when breathing with the apparatus;
chemical means disposed in said container for processing the breathing air;stopper means for closing said second opening until said container is required for use; and
,moisture-sensitive means held in said stopper means in gas contact with said chemical means for visually indicating the presence of moisture in said container; and
,window means for permitting viewing of said moisture-sensitive means from outside of said housing means. - View Dependent Claims (2, 3, 4)
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5. A breathing arrangement comprising:
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a device for processing breathing air; said device including;
a container having first and second breathing air pass-through openings;
breathing conduit means connected to said first opening and adapted for use by a person when breathing with the apparatus;chemical means disposed in said container for processing the breathing air;
stopper means for closing said second opening until said container is required for use; and
,moisture-sensitive means held in said stopper means in gas contact with said chemical means for visually indicating the presence of moisture in said container; removable housing means for enclosing said device until required for use; and
,window means mounted in said housing means for permitting viewing of said moisture-sensitive means from outside of said housing means.
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Specification