SAFETY AND COMMUNICATION SYSTEM OF RESCUER Russian patent published in 2021 - IPC A62B15/00 A42B3/00 

FIELD: personal protection equipment.

SUBSTANCE: invention relates to individual means of protection of workers of rescue services and can be used in emergency rescue operations, in particular anti-fountain works during elimination of accidents, gas, water and oil manifestations, open gas and oil fountains. System includes a protective helmet, a full-face breathing mask and a telephone-and-microphone set. Full-face respiratory mask is equipped with built-in microphone and operates from compressed air cylinder. Outer shell of protective helmet is made by matrix pressing of composite material including reinforcing filler from glass fabric, carbon and Kevlar on the basis of binder from hard-combustible polymer. Dome helmet element covers parietal, occipital and frontal parts of user's head and has two side elements to accommodate external cups of full-size headphones of telephone-and-microphone set. Outer cups of full-size headphones are equipped with sound absorbing material, ear cushion made with provision of its tight attachment to head of rescuer with complete covering of auricle. External cup of full-size headphones is equipped with electronic device, including, including a speaker, a noise-compensating system and a microcontroller for its control and switching to a walkie-talkie mode, which is connected to a portable microphone installed on the holder and an external wire connected to the radio through the tangent. Lateral elements of external cover of protective helmet are equipped with fixing hooks made with possibility of fixing crossbar elements hingedly mounted on full-face respiratory mask. Microphone device of the mask is made with possibility of external connection to the electronic device of full-size headphones of the telephone-and-microphone set. Inner frame of the protective helmet is made of foamed polyurethane, is placed on the side of the inner surface of the dome part of the outer shell of the protective helmet with coverage of parietal, occipital and frontal parts of the rescuer's head and is covered with softening substrate.

EFFECT: provides protection of head, face, respiratory organs, hearing organs from noise, mechanical and thermal effects, aggressive media, surfactants, water, oil products, unfavorable climatic effects with simultaneous provision of stable communication in conditions of intense acoustic field.

8 cl, 2 dwg