Oxygen respirator having CO.sub.2 absorption means
First Claim
1. An oxygen respirator comprising:
- a body having an oxygen reservoir;
oxygen means for supplying oxygen;
connection means for connecting the oxygen means for supplying oxygen to the body;
a mask to which oxygen incorporated from the oxygen means is transferred;
a first hose transferring oxygen from the body to the mask;
a tank member mounted on the body for receiving exhalation sent back from the mask to the body;
a second hose transferring exhalation from the mask to the body; and
carbon dioxide absorbing material charged in the body for removing carbon dioxide from the exhalation transferred back from the mask to the body;
whereinthe oxygen reservoir is formed on an inner side of a connection means portion of the body,a side of an air outlet of the carbon dioxide absorbing material communicates with the oxygen reservoir in which oxygen is mixed with the exhalation from which carbon dioxide is removed,the carbon dioxide absorbing material is contained in a containment area having an exhalation inlet and an exhalation outlet, andan air circulation chamber having a partition wall is disposed between the exhalation inlet and the exhalation outlet, the air circulation chamber comprising a containing area formed inside the body, whereby the partition wall spaces the exhalation inlet and exhalation outlet at a long interval along the direction of air so that exhalation transferred inside the containment reaches the exhalation outlet via the maximum pathway.
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Accused Products
Abstract
An oxygen respirator with safety and simple handling, comprising a body, a small portable-type oxygen cylinder or oxygen generator mounted on the body, a mask, a first hose transferring oxygen from the body to the mask, a tank member mounted on the body for receiving exhalation, a second hose transferring exhalation from the mask to the body, and a carbon dioxide absorbing material charged in the body for removing carbon dioxide from exhalation sent back from the mask to the body. During emergency and evacuation for example in fire, thus, oxygen is transferred to the mask by removing a trigger or the like. The respirator also enables the reuse of exhalation for respiration. Despite of the small size, therefore, the respirator can protect a user from risks such as suffocation for a relatively long period of time.
37 Citations
11 Claims
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1. An oxygen respirator comprising:
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a body having an oxygen reservoir; oxygen means for supplying oxygen; connection means for connecting the oxygen means for supplying oxygen to the body; a mask to which oxygen incorporated from the oxygen means is transferred; a first hose transferring oxygen from the body to the mask; a tank member mounted on the body for receiving exhalation sent back from the mask to the body; a second hose transferring exhalation from the mask to the body; and carbon dioxide absorbing material charged in the body for removing carbon dioxide from the exhalation transferred back from the mask to the body; wherein the oxygen reservoir is formed on an inner side of a connection means portion of the body, a side of an air outlet of the carbon dioxide absorbing material communicates with the oxygen reservoir in which oxygen is mixed with the exhalation from which carbon dioxide is removed, the carbon dioxide absorbing material is contained in a containment area having an exhalation inlet and an exhalation outlet, and an air circulation chamber having a partition wall is disposed between the exhalation inlet and the exhalation outlet, the air circulation chamber comprising a containing area formed inside the body, whereby the partition wall spaces the exhalation inlet and exhalation outlet at a long interval along the direction of air so that exhalation transferred inside the containment reaches the exhalation outlet via the maximum pathway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification