A self-contained breathing apparatus includes at least one air tank having a regulator, and a back plate configured to removably receive the air tank. The back plate has a plate having a tank engagement surface for engaging at least a portion of an air tank, a receiving cradle on the plate configured to receive the regulator of an air tank, and a locking mechanism associated with the cradle and/or the plate for releasably locking the regulator and/or the cradle relative to the plate. The locking mechanism has at least one locking member configured to move between a first locked position, wherein the locking member engages the regulator and/or cradle to restrict removal of the regulator and/or the receiving cradle from the plate, and a second unlocked position, wherein the locking member disengages from the regulator and/or the cradle to permit removal of the regulator and/or the cradle from the plate.

A strong unsolved need exists to provide people with breathable gases for inhaling instead of ambient air, when people live in areas, where the ambient air is polluted with toxic gases and particulate matters. The present invention solves this need by disclosing a breathing apparatus, a dispenser of breathable gases, and a distributor of breathable gases, for supplying breathable gases to people, exposed to polluted and contaminated outdoor and indoor ambient air.

A flow control valve includes a housing defining a cavity therein. The housing has an input port for receiving a gas from a gas supply, and an output port for delivering the gas to a gas cylinder. The cavity defines a staging area fluidly connected to the input port, a delivery area fluidly connected to the output port, and a pressurization area fluidly connected to a feedback sensing port. The feedback sensing port is configured to receive pressurized fluid that is pressurized to a pressure level representative of a pressure level of gas delivered to the gas cylinder. The flow control valve includes a piston slidably positioned in a channel extending between the pressurization area and the delivery area. The position of the piston changes a rate of flow of gas through the flow control valve. The piston position moves in response to a pressure at the feedback sensing port.

A self-contained breathing apparatus includes at least one air tank having a regulator, and a back plate configured to removably receive the air tank. The back plate has a plate having a tank engagement surface for engaging at least a portion of an air tank, a receiving cradle on the plate configured to receive the regulator of an air tank, and a locking mechanism associated with the cradle and/or the plate for releasably locking the regulator and/or the cradle relative to the plate. The locking mechanism has at least one locking member configured to move between a first locked position, wherein the locking member engages the regulator and/or cradle to restrict removal of the regulator and/or the receiving cradle from the plate, and a second unlocked position, wherein the locking member disengages from the regulator and/or the cradle to permit removal of the regulator and/or the cradle from the plate.

An air compressor assembly for filling self-contained breathing apparatus air containers has at least one condensate separator. The condensate separator includes a liquid-retaining vessel a liquid-level sensor. A drain valve is in fluid communication with the condensate separator. The drain valve is configured to open and drain retained liquid from the liquid-retaining vessel when the liquid-level sensor detects that a level of the retained liquid reaches a drain valve activation triggering level.

A gas cylinder monitoring system (10) for monitoring the contents of a gas cylinder in an EMS vehicle (50) including a gas cylinder (12) for receiving and distributing gas therein, an individual cylinder monitoring system (14) operable to monitor data associated with the gas cylinder (12) and having a cylinder monitoring transmitter (16) operable to broadcast the data, and at least one receiving station (60,70) having a receiver (18,20) operable to receive the data from the individual cylinder monitoring system (14) and indicate if the contents of the gas cylinder (12) are below a pre-determined threshold and require replacing.

A securing device for a valve of a pressurized gas tank of a respiratory protection device, characterized by a securing element, which can be moved from a closed position to a flow position, especially an open position, by applying a torque, wherein at least one part of a housing serves as an abutment for the securing element when the torque is applied, wherein the valve is closed in the closed position of the securing element and can be brought spontaneously into a flow position after applying a particular torque to the securing element.

This invention refers to a positive-pressure air respirator carrying tool for the air cylinder holder with a built-in decompressor in the technical field of backboard parts of positive-pressure air respirator. It breaks through the traditional structure that decompressor tends to be fixed with air respirator at the outside bottom of the backboard. The original design can be easily polluted, corroded, or damaged by hard objects, and there is a hard connection between decompressor and air cylinder valve. This application installing the decompressor within the air cylinder holder of the backboard makes use of the space inside air cylinder holder skillfully, with decompressor cover plate on air cylinder holder. As for the compressed air in the air cylinder, the air cylinder is connected with decompressor via soft tube. In this way, the decompressor will be protected and other functions will not be impaired so that the safety of decompressor can be assured. Meanwhile, in the presence of the high-pressure soft connecting tube, the joint of air cylinder valve can be adjusted from all angles and then connected with air cylinder valve to improve the efficiency of changing air cylinder during rescue operation.

An apparatus for transferring gas to a gas vessel is provided. The apparatus includes a radio frequency identification (RFID) reader configured to interrogate an RFID tag associated with the gas vessel for RFID information. The apparatus includes a gas input port configured to be in removably connected to gas supply, a gas output port configured to be removably connected to the gas vessel and a processor configured to: determine at least one gas vessel characteristic associated with the RFID information, control a flow of gas from the gas input port to the gas output port based at least in part on the at least one gas vessel characteristic, determine at least one filling criterion based at least in part on the RFID information, determine whether the at least one filling criterion is met, and trigger at least one action if the at least one filling criterion is not met.

A Compressed Air Breathing Apparatus (CABA) or Self-Contained Breathing Apparatus (SCBA) is routinely used in environments when there is no breathable air and in emergency situations. However, CABA/SCBA tanks have limited capacity to hold compressed air, and BA filling stations are required in environments in which it may be necessary to refill the CABA/SCBA tanks during an emergency situation. Disclosed is a BA filling station system with a back-up air supply and remote activation. Two or more filling stations are interconnected by one or more air supply lines to provide a flow of compressed air between the filling stations, and one or more remote activation lines to control the flow. Advantageously, the system provides redundancy between the remotely located BA filling stations and substantially improves safety by making available a back-up source of an air supply from another interconnected filling station.