초록 ▼

A gas sensing mask and system which senses and indicates the presence or absence of a selected respired gas. The mask includes a non-porous housing that is sized to seat over the nose and mouth of a subject. The mask includes a fluid aperture that is coupled to a fluid source and a sensor mounting a

A gas sensing mask and system which senses and indicates the presence or absence of a selected respired gas. The mask includes a non-porous housing that is sized to seat over the nose and mouth of a subject. The mask includes a fluid aperture that is coupled to a fluid source and a sensor mounting aperture formed in an intermediate portion of the housing. A gas sensor, which senses one or more selected gases respired by the subject, is directly mounted within the sensor mounting aperture. The gas sensor includes a calorimetric indicator which visually indicates the presence or absence of the respired gas.

대표청구항 ▼

[ Having described the invention, what is claimed as new and desired to be secured by Letters Patent is:] [1.] A gas detecting mask, comprisinga non-porous housing sized to seat over the nose and mouth of a subject, said mask having aperture means forming an aperture in a bottom portion of said hous

[ Having described the invention, what is claimed as new and desired to be secured by Letters Patent is:] [1.] A gas detecting mask, comprisinga non-porous housing sized to seat over the nose and mouth of a subject, said mask having aperture means forming an aperture in a bottom portion of said housing, said aperture being sized to seat a fluid conduit, anda passive colorimetric gas sensor disposed within a corresponding sensor mounting aperture formed in said mask for sensing one or more selected gases respired by the subject, said colorimetric gas sensor visually indicating the presence or absence of the respired gas, wherein said sensor when mounted within said mounting aperture being integrally formed with said housing and disposed in intimate contact therewith, such that a portion of said sensor is mounted to the outer external surface of said mask, and said calorimetric change of color of said gas sensor in the presence or absence of the respired gas is viewable externally of said mask.