HERMETICALLY SEALED BUCKLE Russian patent published in 1995 - IPC

FIELD: life-saving costume. SUBSTANCE: hermetically sealed buckle has inner and outer fastening zippers and resilient knife enclosed in membrane and disposed between zippers. Each zipper has tapes, engagement member lock with pulling member. Membrane is attached to inner and outer zippers adjacent to engagement member bases. Pulling members of zipper locks are interconnected by flexible binder, extending through connected seam between knife and thin hermetical tape or filament or through a portion of this connection. EFFECT: increased efficiency and enhanced reliability in operation. 8 cl, 3 dwg