3 results about "Self-contained breathing apparatus" patented technology

A modular breathing apparatus system integrating self-contained breathing apparatus (SCBA) and powered air purifying respirator (PAPR) capabilities in a unified platform includes a body-worn carrier frame with a removable air canister carrier configured to accommodate varying configurations of pressurized air canisters. A PAPR system with filter cartridges and blower removably attaches to the air canister carrier via a latching mechanism. A second stage regulator configured for connection to protective equipment selectively receives air from either the PAPR system or the SCBA system through an integrated shutoff mechanism. The modular design enables rapid reconfiguration between different air canister configurations without modifying other system components. The air canister carrier can be swapped to accommodate different sizes and numbers of pressurized air canisters while maintaining compatibility with the integrated PAPR system, addressing inefficiencies in traditional separate SCBA and PAPR systems and providing operational flexibility for varied mission requirements.

A protective shield is provided for covering a self-contained breathing apparatus (SCBA) mask or a full-face air purifying respirator (APR) lens to prevent damage and scratching. The shield consists of a die cut shape of thermoplastic sheet that duplicates the outline of the self-contained breathing apparatus mask lens and / or frame. The protective shield can be produced using various grades, colors and / or densities of material replicating limited visibility or blackout conditions. To protect the majority of the plastic lens, the shape of the shield includes a peripheral overlap onto the mask utilizing the SCBA lens frame. The shield can be attached to the self-contained breathing apparatus face mask by means of any of the following: bungee, hook, or elastic cord; all of which allows the shield to be attached or removed quickly. Many SCBA / APR training exercises require limited visibility. The invention can be used as an effective training tool to prevent light transmission and simulate extremely limited visibility.

A portable, modular air delivery system for refilling self-contained breathing apparatus (SCBA) cylinders under adverse field conditions includes a ruggedized enclosure housing a four-stage breathing air compressor with interstage cooling driven by a diesel engine, modular air storage cylinders rated to 6,000 psi, and a distribution manifold with four high-pressure outlets for simultaneous refilling operations. The compressor provides dual-pressure outputs for SCBA refilling and pneumatic tool operation. An extended-length hose system enables cylinder refilling at distances up to 500 feet. The system performs cascade filling operations and features dual rolling door assemblies for bilateral access. Weatherproofed components enable operation during rain while maintaining Grade D breathing air quality. Connector fittings accommodate US military and Israeli SCBA standards. Modular construction permits component removal from a mobile trailer platform for redistribution. The system meets 463L pallet constraints and achieves fill times under 5 minutes.