DIVER'S HELMET Russian patent published in 1997 - IPC

FIELD: diving technology. SUBSTANCE: diver's helmet includes rigid body with port, connecting neck ring, pice unions for standard supply of air, emergency supply of air and telephone communication, standard and emergency air supply regulators. Box-shaped port is provided with flat flange over perimeter. Arranged inside helmet is emergency air supply regulator which includes body with air chamber with seat and spring-loaded valve, cover with push button acted oh by diver's head and engageable with valve. Exhaust valve includes body with seat and holes in its base closed by diaphragm, rod with push button and diaphragm closing the holes in threaded cover. EFFECT: enhanced reliability. 2 cl, 6 dwg