# US 2014/0190483 A1 · Self-Contained Integrated Emergency Life-Support Device And System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190483 A1 - Document ID: US20140190483A1 - Status: Published application - Kind: A1 - Application number: 13/106,609 - Filed: 2011-05-12 - Published: 2014-07-10 - Earliest claimed: 2010-05-12 - Assignees: Critical Systems Innovations, Inc. - Inventors: Mark A. Hansen; David A. Buck - Web page: https://patentgrep.com/patent/US20140190483A1 ## CPC - A62B 7/02: with compressed oxygen or air - A62B 7/10: with filter elements - A62B 7/12: with fresh-air hose - A62B 18/02: Masks (gas-masks for animals A62B18/06; masks for welders A61F9/06) - A62B 23/025: {the filter having substantially the shape of a mask (surgical face masks A41D13/11)} - A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00) ## Abstract A self-contained respiratory protection system is disclosed. The system includes a center module attachable to one or more cylinders of air, gas or oxygen. A plurality of filters is mountable on the center module. A blower motor also may be mounted on the center module. A hose attaches to a cylinder to provide air to an operator or draws filtered air via the filters on the center module. A first stage regulator converts the air in the cylinder to breathable air for the operator. A second stage regulator transitions between filter mode and supplied air. The system may fit within a backpack. ## Claims ### Claim 1 A breathing apparatus comprising: one or more contained air cylinders connected to a supply manifold; a contained air supply hose connected to the supply manifold; one or more air filters connected to a filtered air manifold; a blower motor connected to the filtered air manifold; a filtered air supply hose connected to the filtered air manifold; and an air supply assembly connected to both the contained air supply hose and the filtered air supply hose for delivery of pressurized contained air, filtered air, or powered filtered air. ### Claim 2 (depends on 1) The breathing apparatus of claim 1 wherein the pressurized contained air is supplied on demand if the filtered air supply pressure is reduced, compromised or obstructed. ### Claim 3 (depends on 1) The breathing apparatus of claim 1 wherein the air supply assembly comprises a regulator connected to the contained air supply hose. ### Claim 4 (depends on 3) The breathing apparatus of claim 3 further comprising a high pressure regulator in communication with the supply manifold. ### Claim 5 (depends on 2) The breathing apparatus of claim 2 further comprising a high pressure assembly comprising a high pressure input connection and a high pressure output connection, wherein the high pressure assembly is in communication with the supply manifold. ### Claim 6 (depends on 1) The breathing apparatus of claim 1 wherein self-contained air is supplied to a second air supply assembly through the high pressure assembly. ### Claim 7 (depends on 1) The breathing apparatus of claim 1 wherein the contained air cylinders are recharged with high pressure air through the high pressure assembly. ### Claim 8 (depends on 1) The breathing apparatus of claim 1 wherein the air supply assembly is a sealable mask. ### Claim 9 (depends on 1) The breathing apparatus of claim 1 wherein at least one of the cylinders contains pure oxygen. ### Claim 10 A modular breathing apparatus comprising: a self-contained air module comprising one or more pressurized cylinders, a pressurized air supply hose, and a manifold connected to the one or more cylinders and the pressurized air supply hose; a filtered air module comprising one or more air filtration cartridges, a filtered air supply hose and a filtered air manifold connected to the one or more filtration cartridges and the filtered air supply hose; a powered air module comprising a blower motor connected to the filtered air manifold; and an air supply assembly for delivery of pressurized air and filtered air to a user comprising a regulator connected to the pressurized air supply hose and a filtered air supply connection. ### Claim 11 (depends on 10) The modular breathing apparatus of claim 10 wherein the powered air module is replaced with a connection plug to provide only self-contained pressurized air or filtered air to the air supply assembly. ### Claim 12 (depends on 10) The modular breathing apparatus of claim 10 wherein the one or more filtration cartridges are replaced with one or more connection plugs to provide only self-contained pressurized air to the air supply assembly. ### Claim 13 (depends on 10) The modular breathing apparatus of claim 10 further comprising a high pressure regulator connected to the manifold and the pressurized air supply hose. ### Claim 14 (depends on 10) The modular breathing apparatus of claim 10, further comprising a high pressure assembly comprising a high pressure input connection and a high pressure output connection, wherein the high pressure assembly is in communication with the manifold. ### Claim 15 (depends on 14) The modular breathing apparatus of claim 14 wherein self-contained air is supplied to a second air supply assembly through the high pressure assembly. ### Claim 16 (depends on 14) The modular breathing apparatus of claim 14 wherein the pressurized cylinders are recharged with high pressure air through the high pressure assembly. ### Claim 17 (depends on 10) The modular breathing apparatus of claim 10 wherein at least one of the pressurized cylinders contains pure oxygen. ### Claim 18 (depends on 10) The modular breathing apparatus of claim 10 wherein the air supply assembly is a mask. ### Claim 19 (depends on 10) The modular breathing apparatus of claim 10 wherein pressurized air is supplied on demand by the user during reduced availability of the filtered air through the filtered air supply hose. ### Claim 20 A modular breathing apparatus comprising: a manifold having one or more cylinder connections, a manifold discharge, and one or more manifold ports; a first pressurized air delivery system comprising; a high pressure regulator in fluid communication with the manifold discharge; a low pressure supply hose in fluid communication with the high pressure regulator, a second stage regulator in fluid communication with the low pressure supply hose; a second pressurized air delivery system in fluid communication with the manifold discharge and the high pressure regulator of the first pressurized air delivery system, the second pressurized air delivery system comprising a pressure hose and one or more quick connection fitting at the terminal end of the pressure hose. ### Claim 21 A method for providing air supply comprising: providing self-contained air through a pressurized air manifold and pressurized air supply hose; providing filtered air through a filtered air manifold and filtered air supply hose; providing powered filtered air through a blower motor connected to the filtered air supply manifold; and and switching between pressurized air and filtered air or powered filtered air wherein the switching is on demand by activation of a regulator upon reduced filtered air or powered filtered air supply. ### Claim 22 A method of providing a modular breathing apparatus, comprising: providing a pressurized air manifold with one or more sealable supply connections and one or more pressurized cylinders connected to the sealable connections, wherein the connection is sealed with a cap when a cylinder is not connected thereto; providing a filtered air manifold with one or more sealable filter connections and one or more air filtration cartridge connected to the sealable filter connections, wherein the connection is sealed with a cap when a filtration cartridge is not connected thereto; providing a blower motor connected to the air manifold at one of the sealable filter connections; connecting a sealable mask to the pressurized air manifold wherein the connection includes one or more regulators; connecting the sealable mask to the filtered air manifold; and automatically switching between pressurized air supplied from the pressurized air manifold and the filtered air supplied from the filtered air manifold.