Importance

Loading Importance Indicators...

Abstract

Disclosed is a modular, low profile PAPR system allowing customized configuration to meet an operator's weight and space requirements. The system includes a blower, a filter rail chassis that is removably attachable to an inlet of the blower, and a hose system that is removably attachable to the outlet of the blower. A battery pack is attachable to the blower in a close, nested configuration abutting both the blower and the filter chassis to maintain the small profile of the system, and may alternatively be carried remote from the blower with a power cord interconnecting the blower with the battery pack. The hose system comprises an ovular outer tube, which ovular shape maintains a generally flat profile for the hose as it extends across or along the operator's body. Two circular air carrying conduits are sealed within such ovular outer tube against outside contamination, thus providing a flat, small profile tube system that resists hoop stress applied to the outside of the hose, provides low resistance against bending, that will not inadvertently kink or seal in low radius turns, and that results in a low profile, non-collapsing hose system for delivering air from a remotely carried blower and filter assembly to the operator's protective mask.

Loading the Abstract Image...

First Claim