Patent ID: 8230854
Filing Date: 2012-07-31
Classification: A62B

Abstract:
1. An oxygen-generating breathing apparatus comprising: a chemical cartridge through which respiratory air for generating the oxygen flows in both directions, which is connected to a breathing hose and a breathing bag, wherein the chemical cartridge comprises a plurality of air treatment chambers separated from one another by air-permeable retaining screens and an air treatment chamber adjacent to the breathing bag is filled with a carbon-dioxide-binding chemical, wherein a chemical for oxygen generation, present as granules, is located in the other air treatment chambers, wherein external air treatment chambers of the plurality of air treatment chambers each include a flat impact-damping member consisting of a multilayer fine wire mesh, which adjoins a cover of the chemical cartridge, and the flat impact-damping members are provided with openings and extend transversely to the direction of flow, wherein middle air treatment chambers of the plurality of air treatment chambers each include a damping element consisting of a multilayer fine-wire mesh which runs in a zigzag fashion and is fixed on one side to a wire grid, the damping elements having walls aligned in the direction of flow but disposed in an offset manner with respect to one another in the middle air treatment chambers, and wherein each of the impact damping elements consists of a fine-wire mesh hose made of stainless steel, which is compressed in the longitudinal direction and folded once to form adjacent mesh layers, and is provided with a centrally inserted fine mesh insert of copper, and the adjacent mesh layers are stapled together.