CBRN breathing apparatus
An air delivery hose (10) has a CBRN resistant outer butyl rubber layer (12) convolute over a metal wire reinforced thermoplastic polyurethane inner hose (14). A combination unit respirator (20) has an air delivery hose (10, 10′) with a proximal end (22) with a three position lockable switch (40) th...
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Main Author | |
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Format | Patent |
Language | English |
Published |
28.04.2020
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Subjects | |
Online Access | Get full text |
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Summary: | An air delivery hose (10) has a CBRN resistant outer butyl rubber layer (12) convolute over a metal wire reinforced thermoplastic polyurethane inner hose (14). A combination unit respirator (20) has an air delivery hose (10, 10′) with a proximal end (22) with a three position lockable switch (40) that allows selection of APR, PAPR or SCBA modes, and a distal end (24) with a compact demand valve (30) responsive to the switch position. A filter cover accessory (60) is a modular accessory to a PAPR manifold that protects a PAPR filter (62) from premature degradation in harsh environments. |
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Bibliography: | Application Number: US201615752432 |